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

Currently priced at $1,024, American Airlines will fly you from St. Louis to Buenos Aires and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and LATAM Airlines - these airlines can fly you to your destination from $1,109 and $1,184, respectively. These flights start at 18% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from St. Louis to Buenos Aires one-way?

The cheapest airline one-way is GOL, with whom users have recently found tickets for as low as $633. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from St. Louis to Buenos Aires for a low price.

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

Travelers seeking maximum savings on their St. Louis to Buenos Aires flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

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

What is the cheapest day to fly round-trip from St. Louis to Buenos Aires?

Thursday 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 16% on this flight, we recommend booking at least 56 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 $1,238 for flights departing within the next 72 hours.

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

August is one of the best times of the year to fly to Buenos Aires from St. Louis. Prices for August average $1,257 per person but you can even find prices for as low as $999. The most expensive prices can be found in the month of November. Opting for a August flight can save you 16% on your journey compared to booking in November

Most accurate provider : When it comes to deals on St. Louis-Buenos Aires flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Buenos Aires flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Buenos Aires flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Buenos Aires flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 4 different 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.

$633+ Flights from St. Louis, Missouri to Buenos Aires, Argentina

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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The best prices from Lambert-St Louis to Buenos Aires are usually found in August or September, booked 90 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from St. Louis to Buenos Aires

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Popular in	November
Cheapest in	August
Round-trip from	$1,024 (American Airlines)
One-way from	$633 (oojo)

Provider with most accurate pricing for Lambert-St Louis-Buenos Aires (BUE) flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Buenos Aires (BUE) flights.

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High demand for flights, 14% potential price rise

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Best time to find cheap flights, 16% 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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Find flight deals from St. Louis to Buenos Aires

Cheapest flights from St. Louis to Buenos Aires
Explore the most affordable flight options available from St. Louis to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

Tue 12/106:15 amSTL - EZE

1 stop24h 05mUnited Airlines

Mon 1/2711:55 pmEZE - STL

1 stop17h 42mUnited Airlines

Deal found 11/20

$1,109

Thu 11/215:27 pmSTL - EZE

1 stop12h 33mAmerican Airlines

Thu 11/2810:30 pmEZE - STL

1 stop19h 43mAmerican Airlines

Deal found 11/20

$1,244

Tue 12/106:00 amSTL - AEP

2 stops29h 40mLATAM Airlines

Mon 1/278:00 pmAEP - STL

2 stops16h 54mLATAM Airlines

Deal found 11/20

$1,334

Tue 12/1010:10 amSTL - EZE

2 stops16h 55mMultiple Airlines

Sun 1/261:45 amEZE - STL

2 stops16h 53mMultiple Airlines

Deal found 11/20

$1,417

Mon 12/239:53 amSTL - EZE

2 stops29h 17mLATAM Airlines

Tue 12/317:10 pmEZE - STL

2 stops26h 37mLATAM Airlines

Deal found 11/21

$1,489

Sun 12/110:21 amSTL - EZE

2 stops16h 39mDelta

Fri 12/610:25 pmEZE - STL

2 stops23h 22mDelta

Deal found 11/20

$1,548

Tue 12/108:25 amSTL - EZE

3 stops41h 15mAvianca

Sun 1/261:45 amEZE - STL

2 stops35h 39mAvianca

Deal found 11/20

$1,561

Fri 12/2010:35 amSTL - AEP

3 stops30h 05mMultiple Airlines

Fri 12/278:55 amAEP - STL

3 stops35h 07mMultiple Airlines

Deal found 11/20

$2,101

Fri 12/203:58 pmSTL - AEP

2 stops15h 52mDelta

Fri 12/275:40 amAEP - STL

2 stops19h 02mDelta

Deal found 11/21

$2,416

Tue 12/1011:20 amSTL - EZE

3 stops25h 05mAir Canada

Mon 1/275:00 pmEZE - STL

3 stops22h 16mAir Canada

Deal found 11/20

$3,030

Best flights from St. Louis to Buenos Aires
Discover carefully curated flight deals from St. Louis to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2024.

Wed 1/153:41 pmSTL - EZE

1 stop15h 53mAmerican Airlines

Wed 2/1910:25 pmEZE - STL

1 stop15h 10mAmerican Airlines

Deal found 11/19

$1,024

Tue 12/106:15 amSTL - EZE

1 stop24h 05mUnited Airlines

Mon 1/2711:55 pmEZE - STL

1 stop17h 42mUnited Airlines

Deal found 11/20

$1,109

Wed 1/299:44 amSTL - EZE

2 stops16h 51mMultiple Airlines

Fri 2/71:45 amEZE - STL

2 stops16h 53mMultiple Airlines

Deal found 11/20

$1,147

Mon 4/73:50 pmSTL - AEP

2 stops22h 10mLATAM Airlines

Mon 5/194:10 pmAEP - STL

2 stops18h 43mLATAM Airlines

Deal found 11/19

$1,184

Sun 12/110:21 amSTL - EZE

2 stops16h 39mDelta

Fri 12/610:25 pmEZE - STL

2 stops23h 22mDelta

Deal found 11/20

$1,548

Mon 4/710:30 amSTL - EZE

3 stops50h 20mAir Canada

Mon 5/194:25 pmEZE - STL

2 stops24h 56mAir Canada

Deal found 11/19

$1,551

Tue 12/108:25 amSTL - EZE

3 stops41h 15mAvianca

Sun 1/261:45 amEZE - STL

2 stops35h 39mAvianca

Deal found 11/20

$1,561

Thu 2/67:15 amSTL - EZE

2 stops31h 55mLATAM Airlines

Wed 2/193:55 amEZE - STL

2 stops22h 43mLATAM Airlines

Deal found 11/20

$1,184

Sat 2/155:13 amSTL - EZE

2 stops28h 07mGOL

Mon 2/243:15 amEZE - STL

2 stops23h 26mGOL

Deal found 11/21

$2,752

Wed 1/156:30 amSTL - AEP

3 stops31h 45mMultiple Airlines

Wed 2/1911:10 pmAEP - STL

3 stops34h 57mMultiple Airlines

Deal found 11/19

$1,548

Fri 12/203:58 pmSTL - AEP

2 stops15h 52mDelta

Fri 12/275:40 amAEP - STL

2 stops19h 02mDelta

Deal found 11/21

$2,416

Mon 1/138:15 amSTL - AEP

2 stops18h 25mAvianca

Tue 1/287:00 amAEP - STL

2 stops30h 24mAvianca

Deal found 11/20

$3,205

Last-minute flights from St. Louis to Buenos Aires
Discover last-minute flight deals from St. Louis to Buenos Aires. Data last updated November 21, 2024 and is based on user searches.

Thu 11/215:27 pmSTL - EZE

1 stop12h 33mAmerican Airlines

Thu 11/2810:30 pmEZE - STL

1 stop19h 43mAmerican Airlines

Deal found 11/20

$1,244

Sun 12/11:09 pmSTL - AEP

2 stops23h 51mLATAM Airlines

Fri 12/62:55 pmAEP - STL

2 stops30h 52mLATAM Airlines

Deal found 11/20

$1,455

Sun 12/14:54 pmSTL - EZE

1 stop35h 26mUnited Airlines

Fri 12/610:05 pmEZE - STL

1 stop21h 33mUnited Airlines

Deal found 11/20

$1,479

Sun 12/110:21 amSTL - EZE

2 stops16h 39mDelta

Fri 12/610:25 pmEZE - STL

2 stops23h 22mDelta

Deal found 11/20

$1,548

Sun 12/14:04 pmSTL - EZE

2 stops23h 06mLATAM Airlines

Thu 12/53:55 amEZE - STL

2 stops22h 48mLATAM Airlines

Deal found 11/20

$1,549

Sun 12/15:21 pmSTL - EZE

3 stops27h 54mMultiple Airlines

Fri 12/68:15 amEZE - STL

3 stops34h 06mMultiple Airlines

Deal found 11/20

$1,854

Tue 12/106:15 amSTL - EZE

1 stop24h 05mUnited Airlines

Mon 1/2711:55 pmEZE - STL

1 stop17h 42mUnited Airlines

Deal found 11/20

$1,109

Tue 12/106:00 amSTL - AEP

2 stops29h 40mLATAM Airlines

Mon 1/278:00 pmAEP - STL

2 stops16h 54mLATAM Airlines

Deal found 11/20

$1,334

Tue 12/1010:10 amSTL - EZE

2 stops16h 55mMultiple Airlines

Sun 1/261:45 amEZE - STL

2 stops16h 53mMultiple Airlines

Deal found 11/20

$1,417

Tue 12/108:25 amSTL - EZE

3 stops41h 15mAvianca

Sun 1/261:45 amEZE - STL

2 stops35h 39mAvianca

Deal found 11/20

$1,561

Tue 12/1011:20 amSTL - EZE

3 stops25h 05mAir Canada

Mon 1/275:00 pmEZE - STL

3 stops22h 16mAir Canada

Deal found 11/20

$3,030

Fri 12/2010:35 amSTL - AEP

3 stops30h 05mMultiple Airlines

Fri 12/278:55 amAEP - STL

3 stops35h 07mMultiple Airlines

Deal found 11/20

$2,101

One-way flights from St. Louis to Buenos Aires
Search for one-way flight options from St. Louis to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated November 21, 2024.

Wed 3/54:33 pmSTL - EZE

2 stops40h 47mGOL

Deal found 11/20

$633

Wed 3/59:15 amSTL - EZE

1 stop22h 15mAmerican Airlines

Deal found 11/20

$717

Sat 12/285:17 pmSTL - EZE

1 stop12h 43mDelta

Deal found 11/21

$757

Wed 3/510:18 amSTL - EZE

3 stops26h 07mAir Canada

Deal found 11/20

$978

Sat 12/286:25 amSTL - EZE

3 stops37h 00mMultiple Airlines

Deal found 11/21

$1,900

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 1/15

3:41 pm-10:34 am

1 stop15h 53m

Buenos Aires Ministro Pistarini

Wed 2/19

10:25 pm-10:35 am

1 stop15h 10m

$1,024

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 12/10

6:15 am-9:20 am

1 stop24h 05m

Buenos Aires Ministro Pistarini

Mon 1/27

11:55 pm-2:37 pm

1 stop17h 42m

$1,109

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 1/29

9:44 am-5:35 am

2 stops16h 51m

Buenos Aires Ministro Pistarini

Fri 2/7

1:45 am-3:38 pm

2 stops16h 53m

$1,147

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 4/7

3:50 pm-4:00 pm

2 stops22h 10m

Buenos Aires Jorge Newbery

Mon 5/19

4:10 pm-8:53 am

2 stops18h 43m

$1,184

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 2/6

7:15 am-6:10 pm

2 stops31h 55m

Buenos Aires Ministro Pistarini

Wed 2/19

3:55 am-11:38 pm

2 stops22h 43m

$1,184

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sun 12/1

10:21 am-6:00 am

2 stops16h 39m

Buenos Aires Ministro Pistarini

Fri 12/6

10:25 pm-6:47 pm

2 stops23h 22m

$1,548

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 1/15

6:30 am-5:15 pm

3 stops31h 45m

Buenos Aires Jorge Newbery

Wed 2/19

11:10 pm-7:07 am

3 stops34h 57m

$1,548

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 4/7

10:30 am-2:50 pm

3 stops50h 20m

Buenos Aires Ministro Pistarini

Mon 5/19

4:25 pm-3:21 pm

2 stops24h 56m

$1,551

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 12/10

8:25 am-4:40 am

3 stops41h 15m

Buenos Aires Ministro Pistarini

Sun 1/26

1:45 am-10:24 am

2 stops35h 39m

$1,561

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Fri 12/20

3:58 pm-10:50 am

2 stops15h 52m

Buenos Aires Jorge Newbery

Fri 12/27

5:40 am-9:42 pm

2 stops19h 02m

$2,416

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 17 results

Compare providers for flights from St. Louis to Buenos Aires

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Buenos Aires in November.

Provider	Price Accuracy	Trust Score*
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Buenos Aires flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Buenos Aires flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Buenos Aires flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Buenos Aires flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from St. Louis to Buenos Aires

Get recent, data-driven insights about flights from St. Louis to Buenos Aires including ideal travel times, pricing trends, and more.

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

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 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month 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 $795). Flying from St. Louis to Buenos Aires in February is currently the most expensive (average of $1,156). 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.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 14% on flights from St. Louis to Buenos Aires by exploring options for tickets in the evening.

Rainfall in Buenos Aires by month

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with United Airlines, Delta and Avianca 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

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,759 reviews

Delta

8.0

Very good

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines

7.5

Good

1,939 reviews

Delta

8.0

Very good

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

9,173 reviews

Delta

8.0

Very good

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

GOL

7.3

Good

1,137 reviews

Delta

8.0

Very good

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,759 reviews

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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 4 different airlines.
What are the cheapest airlines flying from St. Louis to Buenos Aires round-trip?
Currently priced at $1,024, American Airlines will fly you from St. Louis to Buenos Aires and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and LATAM Airlines - these airlines can fly you to your destination from $1,109 and $1,184, respectively. These flights start at 18% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from St. Louis to Buenos Aires one-way?
The cheapest airline one-way is GOL, with whom users have recently found tickets for as low as $633. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from St. Louis to Buenos Aires for a low price.
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.
What is the cheapest month 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 $795). Flying from St. Louis to Buenos Aires in February is currently the most expensive (average of $1,156). 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

Top 4 airlines flying from St. Louis to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$814	Average$1,203	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$997	Average$1,207	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$999	Average$1,266	FlexibilityNo cancel fee	On-time71%
LATAM Airlines	Cheapest$1,106	Average$1,546	FlexibilityNo cancel fee	On-time81%

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$633+ Cheap flights from St. Louis (STL) to Buenos Aires (BUE)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Buenos Aires with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Lambert-St Louis to Buenos Aires are usually found in August or September, booked 90 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from St. Louis to Buenos Aires

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Round-trip from

One-way from

Find flight deals from St. Louis to Buenos Aires

Cheapest flights from St. Louis to Buenos AiresExplore the most affordable flight options available from St. Louis to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

Explore the most affordable flight options available from St. Louis to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

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

Compare providers for flights from St. Louis to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Buenos Aires in November.

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.

Travel insights for flights from St. Louis to Buenos Aires

Get recent, data-driven insights about flights from St. Louis to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I 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 November 15, 2024.

What is the cheapest month to book a flight from St. Louis to Buenos Aires?

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

Find hourly flight availability from St. Louis to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Rainfall in Buenos Aires by month

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

Temperature in Buenos Aires by month

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

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with United Airlines, Delta and Avianca 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.

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?

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

What are the cheapest airlines to fly from St. Louis to Buenos Aires one-way?

Can I find deals for flights from St. Louis to Buenos Aires that include hotel bookings?

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

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

What is the cheapest month to book a flight from St. Louis to Buenos Aires?

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 Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from St. Louis to Buenos Aires

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Cheapest flights from St. Louis to Buenos Aires
Explore the most affordable flight options available from St. Louis to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.