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Cheap flights from St. Louis (STL) to Buenos Aires (BUE) from $341

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 7/9. 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 — BUE
maj 28 — cze 41
From?
To?
wt. 5/28
wt. 6/4
1 adult, Economy
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The best prices from Lambert-St Louis to Buenos Aires are usually found in October or June, booked 76 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from St. Louis to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Buenos Aires (BUE). 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 Maj 23, 2024.

Popular in

December

Cheapest in

October

Round-trip from

$794

One-way from

$518
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Lambert-St Louis to Buenos Aires (BUE)
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One-way flight from Lambert-St Louis to Buenos Aires (BUE)
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What is the cheapest day to fly round-trip from St. Louis to Buenos Aires?

Friday flights are generally found to be more expensive for flights from St. Louis to Buenos Aires. 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 Buenos Aires.

How far in advance should I book a flight from St. Louis to Buenos Aires?

To save up to 43% on this flight, we recommend booking at least 55 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to Buenos Aires from $1,238 1-2 weeks out and tickets from $1,481 for flights departing within the next 72 hours.

What is the cheapest month to fly from St. Louis to Buenos Aires?

October is one of the best times of the year to fly to Buenos Aires from St. Louis. Prices for October average $1,219 per person but you can even find prices for as low as $837. The most expensive prices can be found in the month of December. Opting for a October flight can save you 38% on your journey compared to booking in December

When is the cheapest time to fly from St. Louis to Buenos Aires (STL - BUE)?

Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from St. Louis to Buenos Aires by exploring options for tickets in the afternoon.

Cheap American Airlines flights from St. Louis to Buenos Aires

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Buenos Aires. 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 2,730,072 searches. Data last updated Maj 23, 2024.
Peruse some of the lowest-priced American Airlines flights we've found from St. Louis to Buenos Aires. It's recommended that users confirm their flight details before booking.
śr. 10/92:38 pmSTL - EZE
2 stops14h 27mAmerican Airlines
pt. 10/1810:20 pmEZE - STL
2 stops17h 36mAmerican Airlines
Deal found 5/23$1,041
śr. 11/1311:58 amSTL - EZE
1 stop19h 12mAmerican Airlines
śr. 11/2712:40 amEZE - STL
2 stops19h 34mAmerican Airlines
Deal found 5/22$1,043
pon. 10/72:38 pmSTL - EZE
2 stops16h 22mAmerican Airlines
śr. 10/1610:20 pmEZE - STL
2 stops20h 57mAmerican Airlines
Deal found 5/23$1,071
ndz. 11/104:55 pmSTL - EZE
1 stop14h 05mAmerican Airlines
sob. 11/169:40 pmEZE - STL
2 stops19h 17mAmerican Airlines
Deal found 5/21$1,083
śr. 5/297:30 amSTL - EZE
2 stops21h 25mAmerican Airlines
pon. 6/1710:25 pmEZE - STL
2 stops20h 53mAmerican Airlines
Deal found 5/22$1,237
sob. 11/162:43 pmSTL - EZE
2 stops17h 07mAmerican Airlines
sob. 11/3012:40 amEZE - STL
1 stop18h 45mAmerican Airlines
Deal found 5/22$1,580
sob. 11/164:55 pmSTL - EZE
1 stop14h 05mAmerican Airlines
sob. 11/3012:40 amEZE - STL
1 stop18h 45mAmerican Airlines
Deal found 5/22$1,644
śr. 10/92:03 pmSTL - EZE
1 stop17h 57mAmerican Airlines
wt. 10/1510:20 pmEZE - STL
2 stops17h 36mAmerican Airlines
Deal found 5/23$2,643
śr. 10/92:03 pmSTL - EZE
1 stop17h 57mAmerican Airlines
czw. 10/179:30 pmEZE - STL
1 stop23h 19mAmerican Airlines
Deal found 5/23$2,880

Cheap Delta flights from St. Louis to Buenos Aires

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Buenos Aires. 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 2,730,072 searches. Data last updated Maj 23, 2024.
Browse through some of the cheapest Delta flights traveling from St. Louis to Buenos Aires. Check back soon if you're not seeing flights that suit your needs.
wt. 10/86:00 amSTL - EZE
2 stops22h 15mDelta
wt. 10/158:00 pmEZE - STL
1 stop18h 54mDelta
Deal found 5/23$1,000
śr. 11/1310:00 amSTL - EZE
1 stop20h 00mDelta
czw. 11/2810:25 pmEZE - STL
2 stops23h 44mDelta
Deal found 5/22$1,036
czw. 10/1011:51 amSTL - EZE
2 stops16h 24mDelta
pt. 10/256:10 amEZE - STL
2 stops19h 25mDelta
Deal found 5/22$1,040
sob. 10/55:05 pmSTL - EZE
2 stops23h 40mDelta
pt. 10/188:00 pmEZE - STL
1 stop16h 43mDelta
Deal found 5/23$1,080
sob. 10/55:05 pmSTL - EZE
1 stop14h 30mDelta
pt. 10/188:00 pmEZE - STL
1 stop16h 43mDelta
Deal found 5/23$1,122
sob. 6/1512:51 pmSTL - EZE
1 stop18h 54mDelta
pt. 6/288:00 pmEZE - STL
1 stop22h 20mDelta
Deal found 5/22$1,214
śr. 5/296:30 pmSTL - EZE
1 stop13h 10mDelta
pon. 6/178:00 pmEZE - STL
1 stop22h 20mDelta
Deal found 5/22$1,234
śr. 5/2912:53 pmSTL - EZE
2 stops20h 37mDelta
pon. 6/178:00 pmEZE - STL
1 stop20h 57mDelta
Deal found 5/23$1,238
pt. 6/217:06 pmSTL - EZE
1 stop12h 39mDelta
śr. 6/268:00 pmEZE - STL
1 stop20h 57mDelta
Deal found 5/21$1,249

Cheap St. Louis to Buenos Aires flights in May & June 2024

Find cheap flight options from St. Louis to Buenos Aires specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on Maj 23, 2024.
These are some of the best deals we've found on flights to Buenos Aires in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
sob. 6/156:22 pmSTL - EZE
3 stops29h 03mMultiple Airlines
pt. 6/287:35 amEZE - STL
3 stops35h 53mMultiple Airlines
Deal found 5/22$1,061
sob. 6/156:22 pmSTL - EZE
2 stops33h 13mMultiple Airlines
czw. 6/272:30 amEZE - STL
2 stops34h 04mMultiple Airlines
Deal found 5/22$1,086
sob. 6/156:22 pmSTL - EZE
3 stops29h 03mMultiple Airlines
czw. 6/273:45 amEZE - STL
3 stops39h 43mMultiple Airlines
Deal found 5/22$1,088
śr. 5/296:30 pmSTL - AEP
2 stops19h 30mLATAM Airlines
pon. 6/175:10 pmAEP - STL
2 stops20h 51mLATAM Airlines
Deal found 5/22$1,164
śr. 5/2910:10 amSTL - AEP
2 stops27h 50mLATAM Airlines
pon. 6/175:10 pmAEP - STL
2 stops20h 51mLATAM Airlines
Deal found 5/23$1,169
ndz. 6/305:03 pmSTL - EZE
1 stop12h 57mUnited Airlines
pon. 7/299:00 pmEZE - STL
1 stop27h 17mUnited Airlines
Deal found 5/22$1,186
ndz. 6/3011:10 amSTL - EZE
1 stop18h 50mUnited Airlines
pon. 7/299:00 pmEZE - STL
2 stops44h 40mUnited Airlines
Deal found 5/22$1,198
sob. 6/155:31 pmSTL - EZE
2 stops60h 29mUnited Airlines
pt. 6/289:00 pmEZE - STL
1 stop21h 28mUnited Airlines
Deal found 5/22$1,210
sob. 6/1512:51 pmSTL - EZE
1 stop18h 54mDelta
pt. 6/288:00 pmEZE - STL
1 stop22h 20mDelta
Deal found 5/22$1,214

St. Louis to Buenos Aires 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Buenos Aires in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated Maj 23, 2024.
These are some of the best deals we've found on flights to Buenos Aires in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
pon. 10/77:15 pmSTL - AEP
2 stops20h 45mLATAM Airlines
śr. 10/165:10 pmAEP - STL
2 stops19h 33mLATAM Airlines
Deal found 5/23$1,000
wt. 10/810:00 amSTL - EZE
2 stops18h 15mDelta
wt. 10/156:10 amEZE - STL
2 stops19h 25mDelta
Deal found 5/23$1,000
śr. 10/911:09 amSTL - EZE
2 stops18h 51mUnited Airlines
pon. 10/149:00 pmEZE - STL
1 stop21h 22mUnited Airlines
Deal found 5/23$1,004
śr. 11/1310:00 amSTL - EZE
1 stop20h 00mDelta
czw. 11/2810:25 pmEZE - STL
2 stops23h 44mDelta
Deal found 5/22$1,036
sob. 10/52:05 pmSTL - AEP
2 stops23h 55mLATAM Airlines
wt. 10/157:10 pmAEP - STL
2 stops17h 33mLATAM Airlines
Deal found 5/23$1,040
czw. 10/1011:51 amSTL - EZE
2 stops16h 24mDelta
pt. 10/256:10 amEZE - STL
2 stops19h 25mDelta
Deal found 5/23$1,040
śr. 10/92:38 pmSTL - EZE
2 stops14h 27mAmerican Airlines
pt. 10/1810:20 pmEZE - STL
2 stops17h 36mAmerican Airlines
Deal found 5/23$1,041
śr. 11/1311:58 amSTL - EZE
1 stop19h 12mAmerican Airlines
śr. 11/2712:40 amEZE - STL
2 stops19h 34mAmerican Airlines
Deal found 5/22$1,043
czw. 10/106:15 amSTL - EZE
1 stop23h 45mUnited Airlines
pt. 10/259:00 pmEZE - STL
2 stops22h 11mUnited Airlines
Deal found 5/22$1,044

St. Louis to Buenos Aires flights leaving soon

Find last-minute flight options from St. Louis to Buenos Aires 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 2,730,072 searches. Data last updated Maj 23, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to Buenos Aires. To prevent any unwanted surprises, users should verify their flight info before booking.
śr. 5/296:30 pmSTL - AEP
2 stops19h 30mLATAM Airlines
pon. 6/175:10 pmAEP - STL
2 stops20h 51mLATAM Airlines
Deal found 5/22$1,164
śr. 5/2910:10 amSTL - AEP
2 stops27h 50mLATAM Airlines
pon. 6/175:10 pmAEP - STL
2 stops20h 51mLATAM Airlines
Deal found 5/23$1,169
śr. 5/296:30 pmSTL - EZE
1 stop13h 10mDelta
pon. 6/178:00 pmEZE - STL
1 stop22h 20mDelta
Deal found 5/22$1,234
śr. 5/297:30 amSTL - EZE
2 stops21h 25mAmerican Airlines
pon. 6/1710:25 pmEZE - STL
2 stops20h 53mAmerican Airlines
Deal found 5/22$1,237
śr. 5/2912:53 pmSTL - EZE
2 stops20h 37mDelta
pon. 6/178:00 pmEZE - STL
1 stop20h 57mDelta
Deal found 5/23$1,238
śr. 5/299:50 amSTL - EZE
2 stops27h 00mAir Canada
pon. 6/174:25 pmEZE - STL
3 stops25h 16mAir Canada
Deal found 5/22$1,441
śr. 5/2911:00 amSTL - EZE
3 stops25h 50mAir Canada
pon. 6/174:25 pmEZE - STL
3 stops25h 16mAir Canada
Deal found 5/23$1,651
śr. 5/298:25 amSTL - EZE
2 stops19h 10mMultiple Airlines
ndz. 6/161:40 amEZE - STL
2 stops19h 39mMultiple Airlines
Deal found 5/23$1,863
śr. 5/2911:00 amSTL - EZE
3 stops25h 50mAir Canada
pon. 6/174:25 pmEZE - STL
3 stops30h 40mAir Canada
Deal found 5/22$1,948

One-way flights to Buenos Aires from St. Louis

Search for one-way flight options from St. Louis to Buenos Aires. 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 2,730,072 searches. Data last updated Maj 23, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Buenos Aires. Users in need of a round-trip flight from St. Louis to Buenos Aires instead should update the search form at the top of page.
wt. 7/93:23 pmSTL - EZE
2 stops38h 23mMultiple Airlines
Deal found 5/22$341
wt. 7/93:23 pmSTL - EZE
3 stops30h 42mMultiple Airlines
Deal found 5/22$518
wt. 7/95:26 pmSTL - AEP
2 stops16h 07mLATAM Airlines
Deal found 5/22$708
wt. 7/95:26 pmSTL - EZE
1 stop14h 19mDelta
Deal found 5/22$717

Find flights from St. Louis to Buenos Aires within your budget

Customize your flight search to find flights from St. Louis to Buenos Aires 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 2,730,072 searches. Data last updated Maj 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,000 - $1,253

Route

Depart

Return

Price

Lambert-St LouisBuenos Aires Jorge Newbery

STL - AEP

STLAEP

Lambert-St Louis

pon. 10/7

2 stops20h 45m

Buenos Aires Jorge Newbery

śr. 10/16

2 stops19h 33m

$1,000

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

wt. 10/8

2 stops22h 15m

Buenos Aires Ministro Pistarini

wt. 10/15

1 stop18h 54m

$1,000

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

śr. 10/9

2 stops18h 51m

Buenos Aires Ministro Pistarini

pon. 10/14

1 stop21h 22m

$1,004

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

śr. 11/13

1 stop20h 00m

Buenos Aires Ministro Pistarini

czw. 11/28

2 stops23h 44m

$1,036

Lambert-St LouisBuenos Aires Jorge Newbery

STL - AEP

STLAEP

Lambert-St Louis

sob. 10/5

2 stops23h 55m

Buenos Aires Jorge Newbery

wt. 10/15

2 stops17h 33m

$1,040

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

śr. 10/9

2 stops14h 27m

Buenos Aires Ministro Pistarini

pt. 10/18

2 stops17h 36m

$1,041

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

śr. 11/13

1 stop19h 12m

Buenos Aires Ministro Pistarini

śr. 11/27

2 stops19h 34m

$1,043

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

sob. 6/15

3 stops29h 03m

Buenos Aires Ministro Pistarini

pt. 6/28

3 stops35h 53m

$1,061

Lambert-St LouisBuenos Aires Ministro Pistarini

STL - EZE

STLEZE

Lambert-St Louis

pt. 10/11

2 stops24h 50m

Buenos Aires Ministro Pistarini

śr. 10/16

2 stops30h 40m

$1,253

Flights are sorted by cheapest first

Deals found on 5/23

When is the best time to book a flight from St. Louis to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Buenos Aires. Price data was last updated on May 10, 2024.
The price you pay for your flight from St. Louis to Buenos Aires may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from St. Louis to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Buenos Aires. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Buenos Aires flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday at noon 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 Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires 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 Buenos Aires by month

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

BUE

Temperature

51.8 - 77 °F

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated Maj 23, 2024.
Get a feel of what it's like to fly with American Airlines, Delta and United Airlines from St. Louis to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,561 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Copa Airlines
7.9
Good
2,663 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

LATAM Airlines
7.6
Good
2,389 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,852 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,395 reviews
Delta
8.0
Very good
10,561 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Buenos Aires. 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 Buenos Aires?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Buenos Aires from St. Louis. Booking flights from Lambert-St Louis (STL) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 5 different airlines.

  • Can I find flights from St. Louis to Buenos Aires for under $1,000 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Buenos Aires for under $1,000. The cheapest flight booked recently is on LATAM Airlines for just $1,000, but on average you can expect to pay $1,058.

  • Are there last-minute flights available from St. Louis to Buenos Aires for under $1,200?

    There are currently 10+ open flights from St. Louis to Buenos Aires within the next 7 days for less than $1,200.

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

    Currently priced at $1,000, LATAM Airlines will fly you from St. Louis to Buenos Aires and back. In addition to LATAM Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $1,000 and $1,004, respectively. These flights start at 17% lower than the current average price 3 months from now.

  • What does STL to EZE mean?

    This is defined as Lambert-St Louis Airport (STL) and Buenos Aires Ministro Pistarini Airport (EZE). Codes like Buenos Aires Ministro Pistarini Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Buenos Aires Jorge Newbery Airport (AEP).

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

    The amount of baggage you can bring on your St. Louis to Buenos Aires 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 Buenos Aires with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Buenos Aires 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 Buenos Aires that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Buenos Aires?

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

  • Can I find deals for business class flights from St. Louis to Buenos Aires?

    Yes. Cheapflights offers flight deals from St. Louis to Buenos Aires 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 Buenos Aires that allow pets onboard?

    Many airlines flying from St. Louis to Buenos Aires 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 Buenos Aires?

    Yes, you can often find last-minute deals on St. Louis to Buenos Aires 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 Buenos Aires flight deals updated?

    The St. Louis to Buenos Aires flight deals you see on this page were last updated on 5/23.

  • What are the most popular airlines that fly from St. Louis to Buenos Aires?

    Consider American Airlines, Copa Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Buenos Aires.

  • When is the best time to book a flight from St. Louis to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Buenos Aires (average of $793). Flying from St. Louis to Buenos Aires in December is currently the most expensive (average of $1,151). 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

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

St. Louis to Ministro Pistarini flights
St. Louis to Jorge Newbery flights
Kansas City to Ministro Pistarini flights
Kansas City to Jorge Newbery flights
Kansas City to Cordoba flights

Top 5 airlines flying from St. Louis to Buenos Aires

Discover the top 5 airlines that operate flights from St. Louis to Buenos Aires. 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 2,730,072 searches. Data last updated Maj 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$814Average$1,197FlexibilityNo cancel feeOn-time69%
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DeltaCheapest$925Average$1,283FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$959Average$1,265FlexibilityNo cancel feeOn-time71%
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Copa AirlinesCheapest$1,003Average$1,413FlexibilityNo cancel feeOn-time70%
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LATAM AirlinesCheapest$1,100Average$1,546FlexibilityNo cancel feeOn-time81%
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