Question 1

What are the cheapest airlines flying from St. Louis to Washington, D.C. round-trip?

Accepted Answer

Flying on Spirit Airlines is currently your cheapest option to Washington, D.C., with prices starting at $115. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $153 and $179, respectively. Spirit Airlines is 58% cheaper than the average price of flights available within the next 90 days to this destination.

Question 2

What are the cheapest airlines to fly from St. Louis to Washington, D.C. one-way?

Accepted Answer

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $49. Users have also found prices from $82 and $85 on Frontier and American Airlines, respectively.

Question 3

How recently were the St. Louis to Washington, D.C. flight deals updated?

Accepted Answer

The St. Louis to Washington, D.C. flight deals you see on this page were last updated on 6/8.

Question 4

How far ahead should I book a flight from St. Louis to Washington, D.C.?

Accepted Answer

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 5

What is the cheapest month to book a flight from St. Louis to Washington, D.C.?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from St. Louis to Washington, D.C. (average of $278). Flying from St. Louis to Washington, D.C. in June is currently the most expensive (average of $382). 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.

Question 6

What is the cheapest day to fly from St. Louis to Washington, D.C.?

Accepted Answer

Travelers seeking maximum savings on their St. Louis to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Question 9

What are the most popular routes from St. Louis to Washington, D.C.?

Accepted Answer

The most popular route from St. Louis to Washington, D.C. is Lambert-St Louis - Washington, D.C. Dulles Intl. You may also consider Lambert-St Louis - Washington, D.C. Reagan-National or Lambert-St Louis - Baltimore/Washington.

Question 10

What are the cheapest flights from St. Louis to Washington, D.C.?

Accepted Answer

While on average a flight from St. Louis to Washington, D.C. is generally $1,103, our data shows the cheapest flight currently is $135. When looking at the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl), you can expect to pay $208 for that flight.

Question 11

What are the most reliable airlines from St. Louis to Washington, D.C.?

Accepted Answer

The top 3 most reliable airlines when flying from St. Louis to Washington, D.C. are Avianca (95%), Copa Airlines (95%) and Scandinavian Airlines (93%).

Question 12

What are the most popular airlines that fly from St. Louis to Washington, D.C.?

Accepted Answer

American Airlines, Delta and United Airlines are the most popular airlines when flying from St. Louis to Washington, D.C..

Question 13

Can I find flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from St. Louis to Washington, D.C. for under $200. The cheapest flight booked recently is on Spirit Airlines for just $115, but on average you can expect to pay $171.

Question 14

Are there nonstop flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from St. Louis to Washington, D.C. under $200. A good price for a nonstop flight from St. Louis to Washington, D.C. is less than $254.

Question 15

Are there last-minute flights available from St. Louis to Washington, D.C. for under $200?

Accepted Answer

There are currently 20+ open flights from St. Louis to Washington, D.C. within the next 7 days for less than $200.

Question 16

What is the cheapest day to fly round-trip from St. Louis to Washington, D.C.?

Accepted Answer

Flights from St. Louis to Washington, D.C. are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

Question 17

How far in advance should I book a flight from St. Louis to Washington, D.C.?

Accepted Answer

Travelers have found it’s best to book a flight 53 days in advance to save up to 108% 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 53 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 Washington, D.C. 1-2 weeks in advance for as low as $327, or $466 for flights within the next 24 hours.

Question 18

What is the cheapest month to fly from St. Louis to Washington, D.C.?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from St. Louis in January are about $276 on average during January, but can be found for as low as $108.

Question 19

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

Accepted Answer

It’s typically best to fly out from St. Louis to Washington, D.C. in the evening. Doing so could potentially save you 49% on the flight price compared to flying at noon, which is usually more expensive.

Question 20

What airport do you fly from for flights from St. Louis to Washington, D.C.?

Accepted Answer

If you book a flight to Washington, D.C. from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 11 flights from Lambert-St Louis to Washington, D.C. per day from 5 different airlines.

Question 21

Accepted Answer

One of the most popular airlines traveling from St. Louis to Washington, D.C. is Delta. Flights from Delta traveling this route typically cost $378.88 RT. This price is typically 50% cheaper than other airlines that offer St. Louis to Washington, D.C. flights. When booking this route, the cheapest RT price found was $195. Lambert-St Louis Airport is the most common St. Louis airport to take off from when flying to Washington, D.C.. Washington, D.C. Dulles Intl Airport is the most popular arrival airport in Washington, D.C.. When flying from St. Louis to Washington, D.C., Delta flights are 6% more popular than any other airline flying that same route.

Question 22

Accepted Answer

If you’re traveling from St. Louis to Washington, D.C., one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $347.81 RT. This price is typically 57% more expensive than other airlines that offer St. Louis to Washington, D.C. flights. When booking this route, the cheapest RT price found was $191. The most popular departure airport in St. Louis when flying to Washington, D.C. is Lambert-St Louis Airport. The most popular airport to fly into when visiting Washington, D.C. is Washington, D.C. Dulles Intl Airport. When flying from St. Louis to Washington, D.C., United Airlines flights are 4% more popular than any other airline flying that same route.

Question 23

What does STL to IAD mean?

Accepted Answer

STL and IAD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to IAD refers to a flight route from Lambert-St Louis Airport to Washington, D.C. Dulles Intl Airport. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are some additional IATA codes for airports related to your trip.

Question 24

Can I find deals for flights from St. Louis to Washington, D.C. that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your St. Louis to Washington, D.C. 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.

Question 25

Can I find deals on flights from St. Louis to Washington, D.C. with specific airlines?

Accepted Answer

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

Question 26

Can I find deals for flights from St. Louis to Washington, D.C. that include hotel bookings?

Accepted Answer

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

Question 27

How can I find direct flights from St. Louis to Washington, D.C.?

Accepted Answer

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

Question 28

Can I find deals for business class flights from St. Louis to Washington, D.C.?

Accepted Answer

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

Question 29

Can I find deals for flights from St. Louis to Washington, D.C. that allow pets onboard?

Accepted Answer

Many airlines flying from St. Louis to Washington, D.C. 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.

Question 30

Can I find deals on last-minute flights from St. Louis to Washington, D.C.?

Accepted Answer

Yes, you can often find last-minute deals on St. Louis to Washington, D.C. 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.

Popular in	June
Cheapest in	January
Round-trip from	$234
One-way from	$110

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$100	Average$179	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$142	Average$176	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$165	Average$303	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$191	Average$348	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$195	Average$379	FlexibilityNo cancel fee	On-time69%

9%of flight departures	Early morningMidnight to 6 am
73%of flight departures	Morning6 am to noon
13%of flight departures	AfternoonNoon to 6 pm
5%of flight departures	Evening6 pm to midnight

Sunday	10daily flights
Monday	13daily flights
Tuesday	12daily flights
Wednesday	13daily flights
Thursday	12daily flights
Friday	13daily flights
Saturday	10daily flights

Cheap flights from St. Louis (STL) to Washington, D.C. (WAS) from $49

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 6/18. 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.

The best prices from Lambert-St Louis to Washington, D.C. are usually found in January or February, booked 62 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from St. Louis to Washington, D.C.

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What is the cheapest day to fly round-trip from St. Louis to Washington, D.C.?

How far in advance should I book a flight from St. Louis to Washington, D.C.?

What is the cheapest month to fly from St. Louis to Washington, D.C.?

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

Cheap St. Louis to Washington, D.C. flights in June & July 2024

Find cheap flight options from St. Louis to Washington, D.C. specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,022,473 searches. Prices were last updated on June 8, 2024.

Listed are some of the best fares we've found on flights departing from St. Louis to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.

St. Louis to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,022,473 searches. Data last updated June 8, 2024.

Listed are some of the best fares we've found on flights departing from St. Louis to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.

St. Louis to Washington, D.C. flights leaving soon

Check out these flights departing soon from St. Louis to Washington, D.C.. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Washington, D.C. from St. Louis

Users in need of a one-way flight from St. Louis to Washington, D.C. can choose from these deals. Users in need of a round-trip flight from St. Louis to Washington, D.C. instead should update the search form at the top of page.

Find flights from St. Louis to Washington, D.C. within your budget

How far ahead should I book a flight from St. Louis to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Washington, D.C.. Price data was last updated on May 31, 2024.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from St. Louis to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Washington, D.C.. Price data was last updated on June 2, 2024.

Best time to book a flight from St. Louis to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from St. Louis with our price prediction graph.

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from St. Louis to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from St. Louis to Washington, D.C.?

Can I find flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

Are there nonstop flights from St. Louis to Washington, D.C. for under $200 on Cheapflights?

Are there last-minute flights available from St. Louis to Washington, D.C. for under $200?

What are the cheapest airlines flying from St. Louis to Washington, D.C. round-trip?

What are the cheapest airlines to fly from St. Louis to Washington, D.C. one-way?

What are the most popular routes from St. Louis to Washington, D.C.?

What are the most reliable airlines from St. Louis to Washington, D.C.?

What are the cheapest flights from St. Louis to Washington, D.C.?

What does STL to IAD mean?

Can I find deals for flights from St. Louis to Washington, D.C. that include extra baggage allowance?

Can I find deals on flights from St. Louis to Washington, D.C. with specific airlines?

Can I find deals for flights from St. Louis to Washington, D.C. that include hotel bookings?

How can I find direct flights from St. Louis to Washington, D.C.?

Can I find deals for business class flights from St. Louis to Washington, D.C.?

Can I find deals for flights from St. Louis to Washington, D.C. that allow pets onboard?

Can I find deals on last-minute flights from St. Louis to Washington, D.C.?

How recently were the St. Louis to Washington, D.C. flight deals updated?

What are the most popular airlines that fly from St. Louis to Washington, D.C.?

What is the cheapest month to book a flight from St. Louis to Washington, D.C.?

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Hourly flight availability from St. Louis to Washington, D.C.

Find hourly flight availability from St. Louis to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 8, 2024.

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