$588+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EZE
Mar 11 — Mar 181
1 adult, Economy
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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 9, 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 9, 2026.
This Ovago deal was found by Cheapflights users on 2/8. 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 3/105:21 pm
STL
- EZE
1 stop13h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop22h 58m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$918
This LATAM Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 3/1012:04 pm
STL
- AEP
2 stops17h 51m
LATAM Airlines
Tue 3/175:00 pm
AEP
- STL
2 stops20h 09m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/7. 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 3/87:41 am
STL
- EZE
2 stops46h 39m
United Airlines
Tue 3/179:05 pm
EZE
- STL
2 stops26h 02m
United Airlines
Deal found 2/7![United Airlines logo]()
$957
This Ovago deal was found by Cheapflights users on 2/6. 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 5/511:43 am
STL
- EZE
1 stop20h 02m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop18h 10m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$1,002
This Air Canada deal was found by Cheapflights users on 2/6. 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 2/6![Air Canada logo]()
$1,024
This Ovago deal was found by Cheapflights users on 2/8. 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 3/84:21 pm
STL
- EZE
1 stop14h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop14h 10m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,030
This KAYAK deal was found by Cheapflights users on 2/7. 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 5/511:43 am
STL
- AEP
2 stops17h 57m
LATAM Airlines
Thu 5/143:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/7![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/44:41 pm
STL
- EZE
1 stop15h 04m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop15h 26m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,047
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/26:00 am
STL
- AEP
2 stops23h 40m
LATAM Airlines
Sun 5/178:05 pm
AEP
- STL
2 stops18h 15m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/24:50 pm
STL
- AEP
2 stops21h 10m
LATAM Airlines
Fri 5/158:05 pm
AEP
- STL
2 stops18h 37m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,119
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/75:15 pm
STL
- AEP
2 stops19h 35m
LATAM Airlines
Tue 5/123:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,135
This LATAM Airlines deal was found by Cheapflights users on 2/8. 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.
Thu 4/306:00 am
STL
- AEP
2 stops23h 40m
LATAM Airlines
Mon 5/43:45 pm
AEP
- STL
2 stops27h 59m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,143
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 9, 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 9, 2026.
This KAYAK deal was found by Cheapflights users on 2/8. 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 3/1012:04 pm
STL
- EZE
1 stop18h 56m
LATAM Airlines
Tue 3/178:00 am
EZE
- STL
2 stops27h 05m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/7. 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 3/87:41 am
STL
- EZE
2 stops46h 39m
United Airlines
Tue 3/179:05 pm
EZE
- STL
2 stops26h 02m
United Airlines
Deal found 2/7![United Airlines logo]()
$957
This Air Canada deal was found by Cheapflights users on 2/6. 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
3 stops23h 30m
Air Canada
Thu 5/144:35 pm
EZE
- STL
2 stops29h 30m
Air Canada
Deal found 2/6![Air Canada logo]()
$1,032
This Ovago deal was found by Cheapflights users on 2/6. 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 5/511:43 am
STL
- EZE
1 stop20h 02m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop18h 10m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$1,002
This Ovago deal was found by Cheapflights users on 2/7. 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 3/84:21 pm
STL
- EZE
1 stop12h 59m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop16h 14m
LATAM Airlines
Deal found 2/7![LATAM Airlines logo]()
$1,038
This KAYAK deal was found by Cheapflights users on 2/6. 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 5/56:50 pm
STL
- AEP
2 stops19h 10m
LATAM Airlines
Thu 5/143:45 pm
AEP
- STL
2 stops22h 35m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/411:43 am
STL
- AEP
2 stops19h 57m
LATAM Airlines
Sun 5/178:05 pm
AEP
- STL
2 stops23h 57m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/75:15 pm
STL
- AEP
2 stops20h 45m
LATAM Airlines
Sun 5/175:05 pm
AEP
- STL
2 stops26h 57m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/41:02 pm
STL
- AEP
2 stops19h 28m
LATAM Airlines
Tue 5/128:40 am
AEP
- STL
2 stops26h 56m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/56:50 pm
STL
- AEP
2 stops19h 10m
LATAM Airlines
Sun 5/178:05 pm
AEP
- STL
2 stops23h 57m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/41:02 pm
STL
- AEP
2 stops23h 48m
LATAM Airlines
Mon 5/113:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/44:41 pm
STL
- EZE
1 stop15h 04m
LATAM Airlines
Thu 5/148:10 pm
EZE
- STL
1 stop15h 26m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,047
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/24:50 pm
STL
- AEP
2 stops20h 00m
LATAM Airlines
Wed 5/133:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/511:43 am
STL
- AEP
2 stops17h 57m
LATAM Airlines
Fri 5/158:05 pm
AEP
- STL
2 stops18h 37m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/611:43 am
STL
- AEP
2 stops17h 57m
LATAM Airlines
Fri 5/158:05 pm
AEP
- STL
2 stops18h 37m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/39:59 am
STL
- AEP
2 stops19h 41m
LATAM Airlines
Mon 5/118:05 pm
AEP
- STL
2 stops18h 15m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,079
This KAYAK deal was found by Cheapflights users on 2/8. 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 5/311:43 am
STL
- AEP
2 stops26h 17m
LATAM Airlines
Sat 5/163:45 pm
AEP
- STL
2 stops19h 51m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,119
Last-minute flights from St. Louis to ArgentinaDiscover last-minute flight deals from St. Louis to Argentina. Data last updated February 9, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Argentina. Data last updated February 9, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 2/6. 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 3/35:00 pm
STL
- AEP
2 stops20h 00m
LATAM Airlines
Fri 3/612:40 pm
AEP
- STL
3 stops23h 26m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$1,439
This Mytrip deal was found by Cheapflights users on 2/6. 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.
Fri 3/66:25 am
STL
- AEP
3 stops35h 15m
Multiple Airlines
Fri 3/133:25 pm
AEP
- STL
2 stops26h 04m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$1,875
This LATAM Airlines deal was found by Cheapflights users on 2/6. 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.
Fri 3/610:13 am
STL
- AEP
2 stops18h 42m
LATAM Airlines
Fri 3/136:20 pm
AEP
- STL
2 stops19h 47m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$2,222
This United Airlines deal was found by Cheapflights users on 2/7. 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 3/87:41 am
STL
- EZE
2 stops46h 39m
United Airlines
Tue 3/179:05 pm
EZE
- STL
2 stops26h 02m
United Airlines
Deal found 2/7![United Airlines logo]()
$957
This Ovago deal was found by Cheapflights users on 2/8. 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 3/84:21 pm
STL
- EZE
1 stop14h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop14h 10m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,030
This KAYAK deal was found by Cheapflights users on 2/6. 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 3/175:15 pm
AEP
- STL
2 stops19h 54m
LATAM Airlines
Deal found 2/6![LATAM Airlines logo]()
$1,209
This Air Canada deal was found by Cheapflights users on 2/7. 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.
Sun 3/84:05 pm
STL
- AEP
2 stops21h 35m
Multiple Airlines
Tue 3/171:40 pm
AEP
- STL
2 stops27h 49m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$1,909
This Ovago deal was found by Cheapflights users on 2/8. 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 3/105:21 pm
STL
- EZE
1 stop13h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop22h 58m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$918
This LATAM Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 3/1012:04 pm
STL
- AEP
2 stops17h 51m
LATAM Airlines
Tue 3/175:00 pm
AEP
- STL
2 stops20h 09m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/8. 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 3/2512:04 pm
STL
- EZE
1 stop17h 16m
LATAM Airlines
Wed 4/17:35 am
EZE
- STL
2 stops18h 23m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,067
This LATAM Airlines deal was found by Cheapflights users on 2/8. 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 3/255:21 pm
STL
- AEP
2 stops20h 39m
LATAM Airlines
Wed 4/18:05 pm
AEP
- STL
2 stops17h 04m
LATAM Airlines
Deal found 2/8![LATAM Airlines logo]()
$1,197
This Mytrip deal was found by Cheapflights users on 2/8. 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 3/254:05 pm
STL
- AEP
2 stops25h 50m
Multiple Airlines
Wed 4/17:00 am
AEP
- STL
3 stops34h 24m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$1,469
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 9, 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 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Fri 2/138:20 pm
STL
- EZE
3 stops56h 37m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 2/6. 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.
Fri 2/138:20 pm
STL
- AEP
3 stops40h 30m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$814
This American Airlines deal was found by Cheapflights users on 2/6. 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.
Fri 2/1311:22 am
STL
- EZE
1 stop19h 48m
American Airlines
Deal found 2/6![American Airlines logo]()
$829
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $918 (Ovago) |
One-way from | $588 (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 9, 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 3/10
12:04 pm-9:00 am
1 stop18h 56m
Buenos Aires Ministro Pistarini
Tue 3/17
8:00 am-9:05 am
2 stops27h 05m
$937
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Sun 3/8
7:41 am-8:20 am
2 stops46h 39m
Buenos Aires Ministro Pistarini
Tue 3/17
9:05 pm-9:07 pm
2 stops26h 02m
$957
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 5/5
11:43 am-9:45 am
1 stop20h 02m
Buenos Aires Ministro Pistarini
Thu 5/14
8:10 pm-12:20 pm
1 stop18h 10m
$1,002
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 5/5
1:00 pm-2:30 pm
3 stops23h 30m
Buenos Aires Ministro Pistarini
Thu 5/14
4:35 pm-8:05 pm
2 stops29h 30m
$1,032
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Sun 3/8
4:21 pm-7:20 am
1 stop12h 59m
Buenos Aires Ministro Pistarini
Tue 3/17
8:55 pm-11:09 am
1 stop16h 14m
$1,038
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 5/5
6:50 pm-4:00 pm
2 stops19h 10m
Buenos Aires Jorge Newbery
Thu 5/14
3:45 pm-12:20 pm
2 stops22h 35m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Mon 5/4
11:43 am-9:40 am
2 stops19h 57m
Buenos Aires Jorge Newbery
Sun 5/17
8:05 pm-6:02 pm
2 stops23h 57m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Thu 5/7
5:15 pm-4:00 pm
2 stops20h 45m
Buenos Aires Jorge Newbery
Sun 5/17
5:05 pm-6:02 pm
2 stops26h 57m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Mon 5/4
1:02 pm-10:30 am
2 stops19h 28m
Buenos Aires Jorge Newbery
Tue 5/12
8:40 am-9:36 am
2 stops26h 56m
$1,039
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 5/5
6:50 pm-4:00 pm
2 stops19h 10m
Buenos Aires Jorge Newbery
Sun 5/17
8:05 pm-6:02 pm
2 stops23h 57m
$1,039
Showing 1-10 of 20 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
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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 9, 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
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.9
Food
7.2
Boarding
8.1
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
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St. Louis and Argentina flights
Browse other St. Louis and Argentina flight options. Last updated on February 9, 2026.
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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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,025 | Average$1,390 | FlexibilityNo cancel fee | On-timeN/A |