$385+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EZE
Mar 19 — Mar 261
1 adult, Economy
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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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Cheapest flights from St. Louis to ArgentinaExplore 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 February 17, 2026.
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 February 17, 2026.
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 3/3011:22 am
STL
- EZE
1 stop16h 58m
American Airlines
Mon 4/68:30 pm
EZE
- STL
1 stop15h 46m
American Airlines
Deal found 2/13![American Airlines logo]()
$992
This Ovago deal was found by Cheapflights users on 2/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:50 pm
STL
- EZE
1 stop12h 55m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop15h 26m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$1,024
This Ovago deal was found by Cheapflights users on 2/17. 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 8/45:30 pm
STL
- EZE
1 stop14h 15m
LATAM Airlines
Tue 8/258:10 pm
EZE
- STL
1 stop16h 31m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,027
This Air Canada deal was found by Cheapflights users on 2/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:00 pm
STL
- EZE
2 stops23h 30m
Air Canada
Thu 5/144:35 pm
EZE
- STL
2 stops29h 30m
Air Canada
Deal found 2/15![Air Canada logo]()
$1,038
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pm
STL
- AEP
2 stops24h 10m
LATAM Airlines
Wed 8/263:40 pm
AEP
- STL
2 stops21h 01m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 pm
STL
- EZE
1 stop12h 40m
LATAM Airlines
Wed 8/268:10 pm
EZE
- STL
1 stop23h 52m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This Delta deal was found by Cheapflights users on 2/17. 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.
Wed 8/57:20 am
STL
- EZE
2 stops20h 50m
Delta
Thu 8/278:10 pm
EZE
- STL
1 stop20h 28m
Delta
Deal found 2/17![Delta logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sun 8/98:15 pm
STL
- EZE
2 stops33h 45m
United Airlines
Wed 8/269:00 pm
EZE
- STL
1 stop14h 42m
United Airlines
Deal found 2/17![United Airlines logo]()
$1,051
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sun 8/96:30 pm
STL
- EZE
1 stop35h 30m
United Airlines
Tue 8/259:00 pm
EZE
- STL
2 stops17h 20m
United Airlines
Deal found 2/17![United Airlines logo]()
$1,060
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:30 pm
STL
- AEP
2 stops19h 20m
LATAM Airlines
Sun 8/25:05 pm
AEP
- STL
2 stops26h 57m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:04 pm
STL
- AEP
2 stops17h 51m
LATAM Airlines
Tue 3/178:50 am
AEP
- STL
2 stops28h 19m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$1,109
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:30 pm
STL
- AEP
2 stops19h 20m
LATAM Airlines
Fri 7/313:40 pm
AEP
- STL
2 stops20h 00m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,119
Best flights from St. Louis to ArgentinaDiscover carefully curated flight deals from St. Louis to Argentina that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 17, 2026.
Discover carefully curated flight deals from St. Louis to Argentina that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 17, 2026.
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Tue 3/3111:22 am
STL
- EZE
1 stop16h 58m
American Airlines
Tue 4/710:20 pm
EZE
- STL
1 stop13h 56m
American Airlines
Deal found 2/13![American Airlines logo]()
$992
This Ovago deal was found by Cheapflights users on 2/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:50 pm
STL
- EZE
1 stop12h 55m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop15h 26m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$1,024
This Air Canada deal was found by Cheapflights users on 2/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:00 pm
STL
- EZE
2 stops23h 30m
Air Canada
Thu 5/144:35 pm
EZE
- STL
2 stops29h 30m
Air Canada
Deal found 2/15![Air Canada logo]()
$1,038
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 3/3011:22 am
STL
- EZE
1 stop16h 58m
American Airlines
Mon 4/68:30 pm
EZE
- STL
1 stop15h 46m
American Airlines
Deal found 2/13![American Airlines logo]()
$992
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:30 pm
STL
- AEP
2 stops24h 10m
LATAM Airlines
Sun 8/238:05 pm
AEP
- STL
2 stops29h 32m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:15 pm
STL
- AEP
2 stops21h 45m
LATAM Airlines
Mon 5/255:05 pm
AEP
- STL
2 stops21h 15m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:30 pm
STL
- AEP
2 stops19h 15m
LATAM Airlines
Mon 8/318:05 pm
AEP
- STL
2 stops16h 36m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:42 am
STL
- AEP
2 stops17h 58m
LATAM Airlines
Thu 5/143:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:51 am
STL
- AEP
2 stops17h 49m
LATAM Airlines
Tue 8/258:05 pm
AEP
- STL
2 stops16h 36m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:00 am
STL
- AEP
2 stops23h 40m
LATAM Airlines
Sun 8/25:05 pm
AEP
- STL
2 stops26h 57m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pm
STL
- AEP
2 stops24h 10m
LATAM Airlines
Mon 8/243:40 pm
AEP
- STL
2 stops21h 01m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:00 am
STL
- AEP
2 stops23h 40m
LATAM Airlines
Thu 7/303:40 pm
AEP
- STL
2 stops28h 22m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:30 pm
STL
- AEP
2 stops24h 50m
LATAM Airlines
Wed 8/263:40 pm
AEP
- STL
2 stops21h 01m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pm
STL
- AEP
2 stops24h 10m
LATAM Airlines
Wed 8/263:40 pm
AEP
- STL
2 stops21h 01m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:30 pm
STL
- AEP
2 stops20h 30m
LATAM Airlines
Mon 8/318:05 pm
AEP
- STL
2 stops16h 36m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:00 am
STL
- AEP
2 stops23h 40m
LATAM Airlines
Mon 8/35:05 pm
AEP
- STL
2 stops28h 07m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:30 pm
STL
- EZE
2 stops16h 00m
LATAM Airlines
Mon 8/37:35 am
EZE
- STL
2 stops18h 03m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:30 pm
STL
- EZE
1 stop14h 15m
LATAM Airlines
Tue 8/257:45 am
EZE
- STL
2 stops17h 52m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pm
STL
- EZE
2 stops25h 30m
LATAM Airlines
Wed 8/267:45 am
EZE
- STL
2 stops17h 52m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:30 pm
STL
- EZE
2 stops20h 00m
LATAM Airlines
Thu 7/308:10 pm
EZE
- STL
1 stop13h 57m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2511:51 am
STL
- EZE
1 stop19h 54m
LATAM Airlines
Mon 8/38:10 pm
EZE
- STL
1 stop16h 35m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,039
Last-minute flights from St. Louis to ArgentinaDiscover last-minute flight deals from St. Louis to Argentina. Data last updated February 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Argentina. Data last updated February 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:49 pm
STL
- EZE
2 stops38h 11m
Multiple Airlines
Tue 3/1011:25 pm
EZE
- STL
1 stop17h 46m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$1,266
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:00 pm
STL
- AEP
2 stops20h 00m
LATAM Airlines
Tue 3/105:00 pm
AEP
- STL
2 stops20h 09m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$1,389
This Mytrip deal was found by Cheapflights users on 2/16. 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.
Wed 3/44:05 pm
STL
- AEP
3 stops34h 35m
Multiple Airlines
Tue 3/108:50 am
AEP
- STL
3 stops32h 39m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$1,471
This KAYAK deal was found by Cheapflights users on 2/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:01 pm
STL
- EZE
1 stop12h 59m
LATAM Airlines
Sat 3/1411:00 am
EZE
- STL
2 stops26h 09m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$1,281
This Ovago deal was found by Cheapflights users on 2/17. 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.
Sun 3/812:04 pm
STL
- EZE
1 stop17h 16m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop22h 58m
LATAM Airlines
Deal found 2/17![LATAM Airlines logo]()
$1,094
This KAYAK deal was found by Cheapflights users on 2/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:04 pm
STL
- AEP
2 stops17h 51m
LATAM Airlines
Tue 3/178:50 am
AEP
- STL
2 stops28h 19m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$1,109
This LATAM Airlines deal was found by Cheapflights users on 2/15. 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.
Sun 3/84:21 pm
STL
- EZE
1 stop14h 39m
Delta
Tue 3/178:55 pm
EZE
- STL
1 stop21h 21m
Delta
Deal found 2/15![Delta logo]()
$1,117
This deal was found by Cheapflights users on 2/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:47 pm
STL
- EZE
1 stop13h 33m
United Airlines
Tue 3/179:05 pm
EZE
- STL
1 stop14h 16m
United Airlines
Deal found 2/16![United Airlines logo]()
$1,202
This Expedia deal was found by Cheapflights users on 2/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:00 am
STL
- AEP
2 stops23h 55m
LATAM Airlines
Sat 3/219:05 pm
AEP
- STL
2 stops40h 04m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$1,332
This American Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 3/3011:22 am
STL
- EZE
1 stop16h 58m
American Airlines
Mon 4/68:30 pm
EZE
- STL
1 stop15h 46m
American Airlines
Deal found 2/13![American Airlines logo]()
$992
This LATAM Airlines deal was found by Cheapflights users on 2/13. 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.
Mon 3/306:59 pm
STL
- AEP
2 stops19h 01m
LATAM Airlines
Mon 4/65:05 pm
AEP
- STL
2 stops20h 04m
LATAM Airlines
Deal found 2/13![LATAM Airlines logo]()
$1,197
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Tue 3/317:45 am
STL
- EZE
2 stops22h 15m
United Airlines
Tue 4/79:00 pm
EZE
- STL
2 stops26h 47m
United Airlines
Deal found 2/14![United Airlines logo]()
$1,174
One-way flights from St. Louis to ArgentinaSearch for one-way flight options from St. Louis to Argentina. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
Search for one-way flight options from St. Louis to Argentina. Find affordable one-way fares based on user searches. Data last updated February 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:48 pm
STL
- AEP
3 stops38h 42m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:10 pm
STL
- AEP
3 stops41h 50m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:10 pm
STL
- EZE
3 stops52h 40m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:51 pm
STL
- AEP
3 stops44h 39m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:51 pm
STL
- AEP
3 stops40h 29m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:51 pm
STL
- EZE
2 stops35h 29m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:51 pm
STL
- EZE
2 stops51h 34m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:48 pm
STL
- EZE
3 stops33h 12m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$474
This Ovago deal was found by Cheapflights users on 2/14. 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.
Wed 3/2510:12 am
STL
- EZE
1 stop20h 48m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 2/14. 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 3/164:47 pm
STL
- EZE
1 stop13h 33m
United Airlines
Deal found 2/14![United Airlines logo]()
$661
This American Airlines deal was found by Cheapflights users on 2/13. 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 6/107:06 am
STL
- EZE
1 stop22h 04m
American Airlines
Deal found 2/13![American Airlines logo]()
$728
This BusinessClass deal was found by Cheapflights users on 2/14. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:04 pm
STL
- EZE
1 stop19h 41m
LATAM Airlines
Deal found 2/14![LATAM Airlines logo]()
$767
Find flight deals from St. Louis to Argentina
Keep the following information in mind while searching for St. Louis to Argentina flight deals. Data was last updated February 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $992 (American Airlines) |
One-way from | $385 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,321 |
Cheapflights Fare Finder
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 February 17, 2026.
Use the filters below to find and compare flights from St. Louis to Argentina that are best for you.
Fly from
St. Louis
Fly to
Argentina
Route
Depart
Return
Price
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 3/31
11:22 am-6:20 am
1 stop16h 58m
Buenos Aires Ministro Pistarini
Tue 4/7
10:20 pm-10:16 am
1 stop13h 56m
$992
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Mon 3/30
11:22 am-6:20 am
1 stop16h 58m
Buenos Aires Ministro Pistarini
Mon 4/6
8:30 pm-10:16 am
1 stop15h 46m
$992
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 5/5
6:50 pm-9:45 am
1 stop12h 55m
Buenos Aires Ministro Pistarini
Thu 5/14
8:10 pm-9:36 am
1 stop15h 26m
$1,024
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 5/5
1:00 pm-2:30 pm
2 stops23h 30m
Buenos Aires Ministro Pistarini
Thu 5/14
4:35 pm-8:05 pm
2 stops29h 30m
$1,038
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Thu 8/6
5:30 pm-7:40 pm
2 stops24h 10m
Buenos Aires Jorge Newbery
Sun 8/23
8:05 pm-11:37 pm
2 stops29h 32m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Mon 5/18
5:15 pm-5:00 pm
2 stops21h 45m
Buenos Aires Jorge Newbery
Mon 5/25
5:05 pm-12:20 pm
2 stops21h 15m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 8/11
5:30 pm-2:45 pm
2 stops19h 15m
Buenos Aires Jorge Newbery
Mon 8/31
8:05 pm-10:41 am
2 stops16h 36m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 5/5
11:42 am-7:40 am
2 stops17h 58m
Buenos Aires Jorge Newbery
Thu 5/14
3:45 pm-9:36 am
2 stops19h 51m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 8/11
11:51 am-7:40 am
2 stops17h 49m
Buenos Aires Jorge Newbery
Tue 8/25
8:05 pm-10:41 am
2 stops16h 36m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Thu 6/25
6:00 am-7:40 am
2 stops23h 40m
Buenos Aires Jorge Newbery
Sun 8/2
5:05 pm-6:02 pm
2 stops26h 57m
$1,039
Showing 1-10 of 33 results
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.
STL-EZE
STL-AEP
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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Argentina
STL-AR0
STL-EZE
STL-AEP
No data available for this route at this time. Please check back soon.
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 February 17, 2026.
Get a feel of what it's like to fly with Delta, LATAM Airlines, and American Airlines from St. Louis to Argentina by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
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Alternative routes for St. Louis to Argentina
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Complete your trip
Complete your trip to Argentina by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Argentina, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Argentina flights
Browse other St. Louis and Argentina flight options. Last updated on February 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from St. Louis to Argentina
Discover the top airline 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 February 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,025 | Average$1,390 | FlexibilityNo cancel fee | On-timeN/A |