HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis to San Antonio (STL - SAT) from $78

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SAT
Jun 5 — Jun 121
From?
To?
Wed 6/5
Wed 6/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Lambert-St Louis to San Antonio are usually found in August or May, booked 58 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from St. Louis to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 31, 2024.

Popular in

December

Cheapest in

August

Round-trip from

$291

One-way from

$113
High demand for flights, 26% potential price rise
Search Deals
Best time to find cheap flights, 14% potential price drop
Search Deals
From Lambert-St Louis to San Antonio
Search Deals
One-way flight from Lambert-St Louis to San Antonio
Search Deals

What is the cheapest day to fly round-trip from St. Louis to San Antonio?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 46% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to San Antonio?

Travelers have found it’s best to book a flight 59 days in advance to save up to 221% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to San Antonio 1-2 weeks in advance for as low as $481, or $566 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to San Antonio?

August can be a great time to fly to San Antonio from St. Louis with a flight ticket averaging about $382. Cheapflights users have found deals in the month of August for as cheap as $198. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from STL to SAT?

When flying from St. Louis to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 28% versus a flight in the afternoon.

Cheap American Airlines flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and San Antonio. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
Check out some of the cheapest American Airlines flights we've come across from St. Louis to San Antonio. Come back soon if you're not finding the exact deal you're looking for.
Fri 10/45:35 pmSTL - SAT
1 stop6h 01mAmerican Airlines
Sun 10/65:46 pmSAT - STL
1 stop6h 07mAmerican Airlines
Deal found 5/30$324
Wed 11/276:02 pmSTL - SAT
1 stop5h 39mAmerican Airlines
Mon 12/26:43 pmSAT - STL
1 stop3h 53mAmerican Airlines
Deal found 5/31$448
Thu 6/66:00 amSTL - SAT
2 stops8h 06mAmerican Airlines
Fri 6/78:05 amSAT - STL
1 stop6h 11mAmerican Airlines
Deal found 5/30$582
Wed 11/276:00 amSTL - SAT
2 stops8h 45mAmerican Airlines
Mon 12/23:35 pmSAT - STL
1 stop7h 01mAmerican Airlines
Deal found 5/31$621
Wed 11/276:00 amSTL - SAT
2 stops8h 45mAmerican Airlines
Mon 12/25:08 amSAT - STL
2 stops9h 26mAmerican Airlines
Deal found 5/31$626

Cheap Frontier flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and San Antonio. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
To aid your search, here are some of the cheapest Frontier flights we've found from St. Louis to San Antonio. Ensure the flight price, dates, time, and airline match your criteria before you book.
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$194
Tue 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$204
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Thu 6/138:02 pmSAT - STL
1 stop13h 38mFrontier
Deal found 5/31$209
Tue 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$210
Fri 6/75:36 pmSTL - SAT
1 stop16h 05mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/30$224
Sun 7/2112:58 pmSTL - SAT
1 stop8h 59mFrontier
Thu 7/258:19 pmSAT - STL
1 stop13h 06mFrontier
Deal found 5/30$238
Sat 7/278:02 pmSTL - SAT
1 stop25h 55mFrontier
Sat 8/36:29 pmSAT - STL
1 stop27h 02mFrontier
Deal found 5/30$239
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Sun 6/1610:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$240
Fri 7/1210:32 pmSTL - SAT
1 stop18h 48mFrontier
Sun 7/1410:58 pmSAT - STL
1 stop10h 27mFrontier
Deal found 5/30$241

Cheap St. Louis to San Antonio flights in May & June 2024

Find cheap flight options from St. Louis to San Antonio specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 31, 2024.
These are some of the most attractive deals on flights from St. Louis to San Antonio in 2024. Check back in a little while for more flight options.
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$194
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/30$198
Tue 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$204
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Thu 6/138:02 pmSAT - STL
1 stop13h 38mFrontier
Deal found 5/31$209
Tue 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$210
Fri 6/145:36 pmSTL - SAT
1 stop16h 05mFrontier
Sun 6/1610:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$223
Fri 6/75:36 pmSTL - SAT
1 stop16h 05mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/30$224
Mon 6/102:41 pmSTL - SAT
1 stop11h 14mMultiple Airlines
Thu 6/138:02 pmSAT - STL
1 stop13h 38mMultiple Airlines
Deal found 5/30$237
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Sun 6/1610:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$240

St. Louis to San Antonio 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Antonio in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
These are some of the most attractive deals on flights from St. Louis to San Antonio in 2024. Check back in a little while for more flight options.
Tue 7/93:23 pmSTL - SAT
1 stop9h 36mSpirit Airlines
Tue 7/169:40 pmSAT - STL
1 stop17h 26mSpirit Airlines
Deal found 5/30$159
Tue 8/2710:34 amSTL - SAT
1 stop13h 46mMultiple Airlines
Sun 9/16:40 pmSAT - STL
1 stop15h 38mMultiple Airlines
Deal found 5/30$174
Tue 7/93:23 pmSTL - SAT
1 stop9h 36mMultiple Airlines
Wed 7/1010:05 pmSAT - STL
1 stop21h 52mMultiple Airlines
Deal found 5/29$191
Tue 7/911:57 amSTL - SAT
2 stops13h 02mSpirit Airlines
Tue 7/169:40 pmSAT - STL
1 stop17h 26mSpirit Airlines
Deal found 5/30$193
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$194
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/30$198
Thu 7/186:19 pmSTL - SAT
1 stop27h 17mSpirit Airlines
Mon 7/225:25 amSAT - STL
1 stop28h 01mSpirit Airlines
Deal found 5/31$200
Tue 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$204
Tue 7/93:23 pmSTL - SAT
1 stop9h 36mMultiple Airlines
Sat 7/136:20 pmSAT - STL
1 stop27h 11mMultiple Airlines
Deal found 5/30$207

St. Louis to San Antonio flights leaving soon

Find last-minute flight options from St. Louis to San Antonio for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
Users seeking a last-minute flight from St. Louis to San Antonio should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$194
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Thu 6/138:02 pmSAT - STL
1 stop13h 38mFrontier
Deal found 5/31$209
Fri 6/75:36 pmSTL - SAT
1 stop16h 05mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/30$224
Mon 6/102:41 pmSTL - SAT
1 stop11h 14mMultiple Airlines
Thu 6/138:02 pmSAT - STL
1 stop13h 38mMultiple Airlines
Deal found 5/30$237
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Sun 6/1610:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/31$240
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Mon 6/174:19 pmSAT - STL
1 stop18h 23mFrontier
Deal found 5/30$244
Thu 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
Fri 6/74:19 pmSAT - STL
1 stop18h 23mFrontier
Deal found 5/30$296
Mon 6/102:41 pmSTL - SAT
1 stop11h 14mMultiple Airlines
Thu 6/139:14 pmSAT - STL
2 stops15h 27mMultiple Airlines
Deal found 5/30$348
Mon 6/102:00 pmSTL - SAT
3 stops34h 59mMultiple Airlines
Thu 6/135:21 amSAT - STL
1 stop12h 07mMultiple Airlines
Deal found 5/30$353

One-way flights to San Antonio from St. Louis

Search for one-way flight options from St. Louis to San Antonio. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
If you're seeking multiple options on one-way flights from St. Louis to San Antonio, be sure to check out these deals, which are updated often. Those seeking round-trip flights from St. Louis to San Antonio should utilize the search form at the the top of the page.
Fri 7/53:07 pmSTL - SAT
1 stop10h 48mSpirit Airlines
Deal found 5/31$78
Sat 6/88:02 pmSTL - SAT
1 stop25h 55mFrontier
Deal found 5/31$80
Tue 6/117:29 pmSTL - SAT
1 stop22h 38mFrontier
Deal found 5/31$81
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mFrontier
Deal found 5/31$100
Fri 6/75:36 pmSTL - SAT
1 stop16h 05mFrontier
Deal found 5/31$109
Sun 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
Deal found 5/31$113
Thu 7/46:22 pmSTL - SAT
2 stops25h 16mSpirit Airlines
Deal found 5/31$132
Mon 6/102:41 pmSTL - SAT
1 stop11h 14mSpirit Airlines
Deal found 5/31$137
Tue 6/1111:57 amSTL - SAT
2 stops13h 02mSpirit Airlines
Deal found 5/31$140

Find flights from St. Louis to San Antonio within your budget

Customize your flight search to find flights from St. Louis to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $324

Route

Depart

Return

Price

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 7/9

1 stop9h 36m

San Antonio

Tue 7/16

1 stop17h 26m

$159

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 8/27

1 stop13h 46m

San Antonio

Sun 9/1

1 stop15h 38m

$174

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 7/9

1 stop9h 36m

San Antonio

Wed 7/10

1 stop21h 52m

$191

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 7/9

2 stops13h 02m

San Antonio

Tue 7/16

1 stop17h 26m

$193

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 7/18

1 stop6h 22m

San Antonio

Mon 7/22

1 stop28h 01m

$200

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 6/18

1 stop23h 50m

San Antonio

Sat 6/22

1 stop23h 35m

$204

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 7/9

1 stop9h 36m

San Antonio

Sat 7/13

1 stop27h 11m

$207

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 6/18

1 stop23h 50m

San Antonio

Sat 6/22

1 stop23h 35m

$210

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 10/4

1 stop6h 01m

San Antonio

Sun 10/6

1 stop6h 07m

$324

Flights are sorted by cheapest first

Deals found on 5/30

How far ahead should I book a flight from St. Louis to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Antonio. Price data was last updated on May 24, 2024.
Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

What is the cheapest day to fly from St. Louis to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Antonio. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Antonio flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature and rainfall totals by month.

SAT

Temperature

51.8 - 84.2 °F

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated May 31, 2024.
Peruse reviews from past customers who have flown with American Airlines, Frontier and Spirit Airlines from St. Louis to San Antonio to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,197 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,763 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,274 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Spirit Airlines
6.4
Okay
8,607 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Frontier
6.2
Okay
4,010 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to San Antonio?

    Booking a flight from Lambert-St Louis (STL) to San Antonio (SAT) is your only option if you wish to fly from St. Louis to San Antonio. On a typical day, there is 1 flight from Lambert-St Louis to San Antonio, all of which are around 7h 07m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Lambert-St Louis to San Antonio.

  • Can I find flights from St. Louis to San Antonio for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Antonio for under $200. The cheapest flight booked recently is on Spirit Airlines for just $159, but on average you can expect to pay $223.

  • Are there last-minute flights available from St. Louis to San Antonio for under $200?

    There are currently 20+ open flights from St. Louis to San Antonio within the next 7 days for less than $200.

  • What days are nonstop flights available from St. Louis to San Antonio?

    Nonstop flights can be found on the following days: Friday, Saturday.

  • How many flights depart from St. Louis to San Antonio on average per day?

    On average 3 flights depart from St. Louis to San Antonio per day.
    Morning (6am - Noon) - 33% of flight departures
    Afternoon (Noon - 6pm) - 67% of flight departures

  • How long is the flight from St. Louis to San Antonio?

    Departing from St. Louis to San Antonio will take you 9h 36m. The distance from St. Louis to San Antonio is about 790 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to San Antonio round-trip?

    Our cheapest airline available from St. Louis to San Antonio is Spirit Airlines. Our recent data shows that you can find tickets from as low as $159 on this airline. An additional option worth looking into is Frontier, starting at $204. Spirit Airlines is currently priced 58% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to San Antonio one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $78. Users have also found prices from $80 and $294 on Frontier and American Airlines, respectively.

  • What does STL to SAT mean?

    This is defined as Lambert-St Louis Airport (STL) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to San Antonio that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to San Antonio with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to San Antonio that include hotel bookings?

    Yes. In addition to deals on St. Louis to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San Antonio.

  • Can I find deals for business class flights from St. Louis to San Antonio?

    Yes. Cheapflights offers flight deals from St. Louis to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to San Antonio that allow pets onboard?

    Many airlines flying from St. Louis to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to San Antonio?

    Yes, you can often find last-minute deals on St. Louis to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to San Antonio flight deals updated?

    The St. Louis to San Antonio flight deals you see on this page were last updated on 5/31.

  • What are the most popular airlines that fly from St. Louis to San Antonio?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to San Antonio.

  • What is the cheapest month to book a flight from St. Louis to San Antonio?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to San Antonio (average of $291). Flying from St. Louis to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.

St. Louis to Hobby flights
St. Louis to Dallas/Fort Worth flights
Kansas City to Dallas/Fort Worth flights
St. Louis to George Bush Intcntl flights
Kansas City to Hobby flights
Kansas City to George Bush Intcntl flights
Kansas City to Austin flights
Springfield to Hobby flights
Springfield to Dallas/Fort Worth flights
Kansas City to Love Field flights
St. Louis to Love Field flights
Springfield to George Bush Intcntl flights
St. Louis to Austin flights
Kansas City to San Antonio flights
Springfield to San Antonio flights
Springfield to Austin flights
Columbia to Dallas/Fort Worth flights
Kansas City to El Paso flights
St. Louis to El Paso flights
Kansas City to Brownsville flights
St. Louis to Killeen flights
Columbia to Hobby flights
Kansas City to Corpus Christi flights
Kansas City to Lubbock flights
St. Louis to Waco flights
Springfield to El Paso flights
Columbia to George Bush Intcntl flights
Springfield to Love Field flights
St. Louis to Brownsville flights
Kansas City to Amarillo flights
St. Louis to Lubbock flights
Kansas City to McAllen flights
St. Louis to Amarillo flights
Joplin to Hobby flights
St. Louis to Harlingen flights
St. Louis to McAllen flights
Springfield to McAllen flights
Joplin to Dallas/Fort Worth flights
Columbia to Austin flights
Kansas City to San Angelo flights
St. Louis to Corpus Christi flights
Kansas City to Harlingen flights
St. Louis to Midland flights
Joplin to San Antonio flights
St. Louis to Longview flights
St. Louis to Abilene flights
Kansas City to Killeen flights

Top 5 airlines flying from St. Louis to San Antonio

Discover the top 5 airlines that operate flights from St. Louis to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$198FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$161Average$277FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$174Average$423FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$176Average$316FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$257Average$406FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
New York to Salt Lake City flights
Denver to San Francisco flights
Austin to Hawaii flights
Cincinnati to Miami flights
St. Louis to Los Angeles flights
Orlando to Phoenix flights
Austin to Houston flights
Phoenix to Atlanta flights
USA to Bali flights
New York to London flights
Los Angeles to El Salvador flights
St. Louis to Savannah flights

Search flights from St. Louis to San Antonio by cabin class

Find flights from St. Louis to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from St. Louis to San Antonio

Find hourly flight availability from St. Louis to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 31, 2024.
1%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
27%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to San Antonio

Explore weekly flight availability from St. Louis to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 31, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to San Antonio?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Antonio from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Antonio?

Cheapflights helps you find that perfect flight to San Antonio from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to San Antonio with no change fees?

Need flexible booking options for your flight to San Antonio from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to San Antonio become cheaper?

Of course! You can now track prices for flights from St. Louis to San Antonio and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines