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$490+ Cheap flights from St. Louis (STL) to Argentina

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EZE
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from St. Louis to Argentina

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Argentina (AR0). 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 January 17, 2025.

Round-trip from

$1,025
(LATAM Airlines)

One-way from

$490
(Kiwi.com)
From Lambert-St Louis to Argentina
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One-way flight from Lambert-St Louis to Argentina
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Find flight deals from St. Louis to Argentina

Cheapest flights from St. Louis to Argentina
Explore the most affordable flight options available from St. Louis to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This LATAM Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/195:30 pmSTL - AEP
2 stops20h 30mLATAM Airlines
Tue 4/18:10 pmAEP - STL
2 stops29h 21mLATAM Airlines
Deal found 1/15$1,025
This United Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:29 pmSTL - EZE
1 stop13h 51mUnited Airlines
Mon 3/2411:55 pmEZE - STL
1 stop22h 59mUnited Airlines
Deal found 1/16$1,025
This American Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/199:28 amSTL - EZE
1 stop22h 02mAmerican Airlines
Mon 3/2411:59 pmEZE - STL
1 stop18h 13mAmerican Airlines
Deal found 1/15$1,081
This Ovago deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/187:10 amSTL - EZE
2 stops41h 35mLATAM Airlines
Mon 3/243:55 amEZE - STL
2 stops34h 05mLATAM Airlines
Deal found 1/16$1,099
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1710:59 amSTL - EZE
1 stop19h 01mDelta
Mon 2/249:00 pmEZE - STL
1 stop17h 46mDelta
Deal found 1/15$1,175
This Mytrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/173:50 pmSTL - EZE
3 stops28h 13mMultiple Airlines
Mon 3/244:00 pmEZE - STL
3 stops25h 06mMultiple Airlines
Deal found 1/16$1,302
This Booking.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/183:50 pmSTL - EZE
2 stops20h 35mAir Canada
Tue 3/254:00 pmEZE - STL
3 stops25h 31mAir Canada
Deal found 1/16$1,348
This Copa Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/68:15 amSTL - EZE
2 stops20h 34mCopa Airlines
Tue 2/1112:18 amEZE - STL
2 stops21h 10mCopa Airlines
Deal found 1/15$1,382
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1310:59 amSTL - AEP
2 stops21h 01mDelta
Thu 2/206:20 amAEP - STL
2 stops20h 17mDelta
Deal found 1/15$2,405
This AranGrant deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/155:13 amSTL - EZE
2 stops28h 07mGOL
Tue 2/255:00 pmEZE - STL
2 stops25h 58mGOL
Deal found 1/15$2,721
This FlightHub deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:30 amSTL - EZE
2 stops34h 45mAvianca
Tue 12/301:45 amEZE - STL
2 stops18h 29mAvianca
Deal found 1/16$3,878

Find flights from St. Louis to Argentina within your budget

Customize your flight search to find flights from St. Louis to Argentina 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 2,558,603 searches. Data last updated January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 3/19

5:30 pm-4:00 pm

2 stops20h 30m

Buenos Aires Jorge Newbery

Tue 4/1

8:10 pm-11:31 pm

2 stops29h 21m

$1,025

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 3/17

4:29 pm-8:20 am

1 stop13h 51m

Buenos Aires Ministro Pistarini

Mon 3/24

11:55 pm-8:54 pm

1 stop22h 59m

$1,025

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Wed 3/19

9:28 am-9:30 am

1 stop22h 02m

Buenos Aires Ministro Pistarini

Mon 3/24

11:59 pm-4:12 pm

1 stop18h 13m

$1,081

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/18

7:10 am-2:45 am

2 stops41h 35m

Buenos Aires Ministro Pistarini

Mon 3/24

3:55 am-12:00 pm

2 stops34h 05m

$1,099

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 2/17

10:59 am-9:00 am

1 stop19h 01m

Buenos Aires Ministro Pistarini

Mon 2/24

9:00 pm-11:46 am

1 stop17h 46m

$1,175

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Mon 3/17

3:50 pm-10:03 pm

3 stops28h 13m

Buenos Aires Ministro Pistarini

Mon 3/24

4:00 pm-3:06 pm

3 stops25h 06m

$1,302

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 3/18

3:50 pm-2:25 pm

2 stops20h 35m

Buenos Aires Ministro Pistarini

Tue 3/25

4:00 pm-3:31 pm

3 stops25h 31m

$1,348

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Thu 2/6

8:15 am-7:49 am

2 stops20h 34m

Buenos Aires Ministro Pistarini

Tue 2/11

12:18 am-6:28 pm

2 stops21h 10m

$1,382

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Thu 2/13

10:59 am-11:00 am

2 stops21h 01m

Buenos Aires Jorge Newbery

Thu 2/20

6:20 am-11:37 pm

2 stops20h 17m

$2,405

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Sat 2/15

5:13 am-12:20 pm

2 stops28h 07m

Buenos Aires Ministro Pistarini

Tue 2/25

5:00 pm-3:58 pm

2 stops25h 58m

$2,721

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 17 results
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Best time to book a flight from St. Louis to Argentina

Have a flexible travel schedule? Discover the best time to fly to Argentina 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 Argentina

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

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

Currently, April is the cheapest month in which you can book a flight from St. Louis to Argentina (average of $795). Flying from St. Louis to Argentina in December is currently the most expensive (average of $1,260). 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 AR?

Find hourly flight availability from St. Louis to Argentina. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

When flying from St. Louis to Argentina, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Argentina by month

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

In terms of precipitation, rainfall in Argentina 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 Argentina when rainfall is around 2.0 in.

Temperature in Argentina by month

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

If weather is an important factor for your trip to Argentina, 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 Argentina

Get insights into the airlines that provide service to Argentina. 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 Argentina. Reviews last updated January 17, 2025.
See what other customers who have flown with Delta and LATAM Airlines from St. Louis to Argentina have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

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
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

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

Copa Airlines
7.7
Good
1,658 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

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
1,847 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

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
8,964 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

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

GOL
7.3
Good
1,088 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

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

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

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Argentina. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    The cheapest airlines for a one-way flight from St. Louis to Argentina are Copa Airlines ($646), Air Canada ($676), and United Airlines ($758).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Argentina 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 Argentina?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Argentina (average of $795). Flying from St. Louis to Argentina in December is currently the most expensive (average of $1,260). 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 Argentina

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Argentina

Discover the top 4 airlines that operate flights from St. Louis to Argentina. 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 2,558,603 searches. Data last updated January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$814Average$1,203FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$999Average$1,262FlexibilityNo cancel feeOn-time71%
DeltaCheapest$1,004Average$1,243FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$1,179Average$1,528FlexibilityNo cancel feeOn-time81%
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