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Flights from St. Louis to Buenos Aires
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Cheap flight deals from St. Louis to Buenos Aires Starting at AED 2,235

For as little as AED 2,235, you can take your next adventure to Buenos Aires without breaking the bank. Choose between one-way and return tickets from St. Louis below.

  • One way
  • Round-trip
      • STL12:58
        18h 47m
        1 stop
        EZE09:45
        Thu, Mar 27|St. Louis - Buenos Aires|American Airlines
        AED 2,235AED 4,898
        54% OFF
        54% OFF
        AED 4,898AED 2,235

        Choose American Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Thu, Mar 27, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,235 including taxes and charges.

      • STL07:30
        24h 15m
        1 stop
        EZE09:45
        Thu, Mar 27|St. Louis - Buenos Aires|United Airlines
        AED 2,397AED 4,898
        51% OFF
        51% OFF
        AED 4,898AED 2,397

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Thu, Mar 27, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,397 including taxes and charges.

      • STL16:20
        13h 40m
        1 stop
        EZE08:00
        Wed, Apr 2|St. Louis - Buenos Aires|United Airlines
        AED 2,706AED 4,898
        45% OFF
        45% OFF
        AED 4,898AED 2,706

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Wed, Apr 2, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,706 including taxes and charges.

      • STL16:30
        13h 50m
        1 stop
        EZE09:20
        Mon, Feb 24|St. Louis - Buenos Aires|United Airlines
        AED 2,708
        AED 2,708

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Mon, Feb 24, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,708 including taxes and charges.

      • STL16:20
        13h 40m
        1 stop
        EZE08:00
        Tue, Apr 29|St. Louis - Buenos Aires|United Airlines
        AED 2,722
        AED 2,722

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Apr 29, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,722 including taxes and charges.

      • STL07:05
        24h 45m
        1 stop
        EZE10:50
        Tue, Feb 25|St. Louis - Buenos Aires|United Airlines
        AED 2,923
        AED 2,923

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Tue, Feb 25, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,923 including taxes and charges.

      • STL08:40
        21h 40m
        1 stop
        EZE09:20
        Wed, Mar 5|St. Louis - Buenos Aires|United Airlines
        AED 2,930
        AED 2,930

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Wed, Mar 5, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,930 including taxes and charges.

      • STL17:27
        14h 2m
        1 stop
        EZE10:29
        Mon, Feb 24|St. Louis - Buenos Aires|American Airlines
        AED 2,937
        AED 2,937

        Choose American Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with American Airlines departs from St. Louis Lambert International Airport on Mon, Feb 24, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,937 including taxes and charges.

      • STL19:07
        34h 53m
        1 stop
        EZE09:00
        Fri, Mar 7|St. Louis - Buenos Aires|Delta Air Lines
        AED 2,955
        AED 2,955

        Choose Delta Air Lines flights from St. Louis to Buenos Aires. The one-way connecting flight with Delta Air Lines departs from St. Louis Lambert International Airport on Fri, Mar 7, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 2,955 including taxes and charges.

      • STL06:15
        23h 45m
        1 stop
        EZE08:00
        Fri, May 9|St. Louis - Buenos Aires|United Airlines
        AED 3,771
        AED 3,771

        Choose United Airlines flights from St. Louis to Buenos Aires. The one-way connecting flight with United Airlines departs from St. Louis Lambert International Airport on Fri, May 9, arriving at Ministro Pistarini International Airport. One-way Prices start from AED 3,771 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        BUE02:00 pm
        Sat, Feb 22|St. Louis - Buenos Aires|American Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

St. Louis to Buenos Aires flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. F9086

    Frontier Airlines

    06:10

    STL

    3.2h

    09:22

    CUN

    SMTWTFS
    Search

  2. AV069

    avianca

    15:45

    CUN

    3.3h

    19:05

    BOG

    SMTWTFS

  3. AV155

    avianca

    21:10

    BOG

    6.5h

    05:40

    AEP

    S-T--F-

  4. UA6223

    United Airlines

    08:40

    STL

    2.4h

    11:03

    IAH

    SMTWTF-
    Search

  5. UA831

    United Airlines

    18:30

    IAH

    10.8h

    07:20

    EZE

    SMTWTFS

  6. AA2493

    American Airlines

    08:59

    STL

    1.9h

    11:50

    CLT

    SMTW-FS
    Search

  7. AA1748

    American Airlines

    13:07

    CLT

    2.3h

    15:22

    MIA

    SMTWTFS

  8. AA933

    American Airlines

    20:45

    MIA

    9.3h

    07:00

    EZE

    SMTWTFS

  9. LA8448

    LATAM Airlines

    10:10

    STL

    1.5h

    12:42

    ATL

    SMTWTFS
    Search

  10. LA6355

    LATAM Airlines

    15:35

    ATL

    6.5h

    21:05

    LIM

    SMTWTFS

  11. H25571

    Sky Airline

    00:15

    LIM

    4.6h

    06:50

    EZE

    SMTWTFS

  12. AA4479

    American Airlines

    12:32

    STL

    2.5h

    16:00

    LGA

    SMTWTFS
    Search

  13. DL115

    Delta Air Lines

    20:40

    JFK

    12.1h

    09:45

    EZE

    SMTWTFS

  14. LA6694

    LATAM Airlines

    16:00

    STL

    1.8h

    18:45

    ATL

    SMTWTFS
    Search

  15. LA6376

    LATAM Airlines

    22:30

    ATL

    9.5h

    09:00

    GRU

    SMTWTFS

  16. LA8142

    LATAM Airlines

    10:55

    GRU

    3.1h

    14:00

    AEP

    SMTWT-S

  17. LA6694

    LATAM Airlines

    16:00

    STL

    1.8h

    18:45

    ATL

    SMTWTFS
    Search

  18. LA6357

    LATAM Airlines

    21:55

    ATL

    9.1h

    07:00

    SCL

    SMTWTFS

  19. LA463

    LATAM Airlines

    08:45

    SCL

    2.0h

    11:48

    EZE

    SMTWTFS

  20. UA2121

    United Airlines

    16:17

    STL

    2.3h

    18:35

    IAH

    SMTWTFS
    Search

  21. UA819

    United Airlines

    20:30

    IAH

    10.8h

    09:20

    EZE

    SMTWTFS

  22. DL1485

    Delta Air Lines

    17:17

    STL

    1.6h

    19:54

    ATL

    SMTWTFS
    Search

  23. LA2483

    LATAM Airlines

    23:20

    ATL

    6.7h

    05:00

    LIM

    SMTWTFS

  24. LA2380

    LATAM Airlines

    09:35

    LIM

    4.4h

    16:00

    AEP

    SMTWTFS

  25. AA2487

    American Airlines

    17:37

    STL

    2.2h

    19:48

    DFW

    SMTWTFS
    Search

  26. AA997

    American Airlines

    20:40

    DFW

    10.5h

    09:10

    EZE

    SMTWTFS
Find more flights and airlines

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

Explore the best time to buy affordable tickets to Buenos Aires with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from St. Louis (STL) to Buenos Aires (BUE) the cheapest?

    Airlines adjust prices for flights from St. Louis to Buenos Aires based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from St. Louis (STL) to Buenos Aires (BUE) cost?

    According to Trip.com's data, the lowest price is around AED 3,791.

  • What is the transportation method from the main airport to downtown in Buenos Aires?

    • The distance from Ministro Pistarini International Airport to downtown is about 27 km, by taxi about 40 minutes.
    • The distance from Jorge Newbery Airport to downtown is about 5 km, by taxi about 20 minutes.

  • How many airports are there in Buenos Aires (BUE)?

    There are 2 airport(s) near Buenos Aires (BUE): Jorge Newbery Airport and Ministro Pistarini International Airport.

How to find a cheap flight from St. Louis to Buenos Aires

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | St. Louis to Buenos Aires

Cheapest direct flight priceAED 2,234
Off-season for travelJanuary
Peak season for travelMay
Flight distance8,772.99 km
Popular airlineUnited Airlines

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