$482+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EZE
Oct 1 — Oct 81
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Argentina with Cheapflights
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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 September 1, 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 September 1, 2026.
This Expedia deal was found by Cheapflights users on 8/29. 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.
Wed 11/115:48 pm -
1 stop12h 52m
Wed 11/189:30 pm -
1 stop21h 53m
Deal found 8/29![LATAM Airlines logo]()
$1,133
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/146:30 am -
1 stop18h 05m
Thu 10/221:10 pm -
2 stops30h 30m
Deal found 8/27![Multiple Airlines logo]()
$1,143
This LATAM Airlines deal was found by Cheapflights users on 8/28. 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 11/26:00 am -
2 stops22h 40m
Tue 11/103:50 pm -
2 stops22h 25m
Deal found 8/28![LATAM Airlines logo]()
$1,148
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/146:30 am -
1 stop18h 05m
Tue 10/201:10 pm -
2 stops30h 30m
Deal found 8/27![Multiple Airlines logo]()
$1,158
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Wed 10/145:36 pm -
2 stops36h 24m
Wed 10/219:00 pm -
1 stop19h 10m
Deal found 8/27![United Airlines logo]()
$1,167
This Delta deal was found by Cheapflights users on 8/27. 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 10/1410:14 am -
2 stops19h 26m
Wed 10/218:05 pm -
2 stops19h 15m
Deal found 8/27![Delta logo]()
$1,178
This Delta deal was found by Cheapflights users on 8/27. 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.
Tue 10/137:20 pm -
1 stop12h 25m
Wed 10/214:45 pm -
2 stops22h 35m
Deal found 8/27![Delta logo]()
$1,178
This Orbitz deal was found by Cheapflights users on 8/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:38 pm -
2 stops30h 22m
Mon 11/94:00 am -
2 stops31h 55m
Deal found 8/28![LATAM Airlines logo]()
$1,179
This Expedia deal was found by Cheapflights users on 8/31. 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 10/3112:00 pm -
2 stops28h 30m
Mon 11/168:40 am -
2 stops29h 35m
Deal found 8/31![LATAM Airlines logo]()
$1,182
This LATAM Airlines deal was found by Cheapflights users on 8/28. 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 9/1512:00 pm -
2 stops19h 40m
Mon 9/213:55 am -
2 stops21h 47m
Deal found 8/28![LATAM Airlines logo]()
$1,182
This Delta deal was found by Cheapflights users on 8/31. 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 10/2212:00 pm -
2 stops19h 40m
Sat 11/77:20 am -
2 stops28h 49m
Deal found 8/31![Delta logo]()
$1,192
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/146:30 am -
1 stop18h 05m
Sun 10/181:10 pm -
2 stops30h 30m
Deal found 8/27![Multiple Airlines logo]()
$1,193
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 September 1, 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 September 1, 2026.
This Delta deal was found by Cheapflights users on 8/31. 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 2/189:00 am -
1 stop21h 40m
Tue 3/169:30 pm -
1 stop15h 18m
Deal found 8/31![Delta logo]()
$1,148
This Expedia deal was found by Cheapflights users on 8/27. 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.
Wed 1/63:40 pm -
1 stop15h 00m
Sun 1/249:30 pm -
1 stop23h 31m
Deal found 8/27![LATAM Airlines logo]()
$1,172
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 10/314:05 pm -
2 stops24h 25m
Sun 11/158:05 pm -
3 stops46h 21m
Deal found 8/31![Multiple Airlines logo]()
$1,451
This Delta deal was found by Cheapflights users on 8/31. 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.
Sun 2/216:59 pm -
1 stop35h 41m
Mon 3/1511:35 pm -
1 stop20h 26m
Deal found 8/31![Delta logo]()
$1,156
This Expedia deal was found by Cheapflights users on 8/27. 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.
Sun 10/117:20 pm -
2 stops42h 40m
Sun 10/185:35 pm -
2 stops32h 19m
Deal found 8/27![LATAM Airlines logo]()
$1,217
This Delta deal was found by Cheapflights users on 8/27. 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.
Tue 10/1310:14 am -
2 stops19h 26m
Tue 10/203:45 pm -
2 stops19h 24m
Deal found 8/27![Delta logo]()
$1,178
This SmartFares deal was found by Cheapflights users on 8/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/246:00 am -
2 stops23h 30m
Sat 3/138:05 pm -
2 stops38h 07m
Deal found 8/31![LATAM Airlines logo]()
$1,240
This Delta deal was found by Cheapflights users on 8/27. 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 10/1410:14 am -
2 stops19h 26m
Wed 10/218:05 pm -
2 stops19h 15m
Deal found 8/27![Delta logo]()
$1,178
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 10/314:05 pm -
3 stops26h 35m
Mon 11/169:00 am -
2 stops33h 26m
Deal found 8/31![Multiple Airlines logo]()
$1,454
This Expedia deal was found by Cheapflights users on 8/27. 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.
Sun 10/117:20 pm -
2 stops53h 25m
Sun 10/181:10 pm -
2 stops36h 44m
Deal found 8/27![LATAM Airlines logo]()
$1,261
This Delta deal was found by Cheapflights users on 8/27. 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 10/1212:00 pm -
2 stops17h 40m
Wed 10/218:05 pm -
2 stops22h 23m
Deal found 8/27![Delta logo]()
$1,178
This Delta deal was found by Cheapflights users on 8/27. 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.
Tue 10/135:35 pm -
2 stops20h 25m
Wed 10/218:05 pm -
2 stops19h 15m
Deal found 8/27![Delta logo]()
$1,178
This LATAM Airlines deal was found by Cheapflights users on 8/31. 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 12/65:31 pm -
2 stops19h 29m
Thu 12/1011:45 am -
2 stops26h 44m
Deal found 8/31![LATAM Airlines logo]()
$1,401
This Delta deal was found by Cheapflights users on 8/27. 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 10/1512:00 pm -
2 stops25h 45m
Thu 10/227:35 am -
2 stops18h 19m
Deal found 8/27![Delta logo]()
$1,178
This Delta deal was found by Cheapflights users on 8/27. 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.
Tue 10/137:20 pm -
1 stop12h 25m
Wed 10/214:45 pm -
2 stops22h 35m
Deal found 8/27![Delta logo]()
$1,178
This FlightHub deal was found by Cheapflights users on 8/28. 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 11/610:25 am -
2 stops19h 05m
Fri 11/205:35 pm -
2 stops18h 20m
Deal found 8/28![LATAM Airlines logo]()
$1,506
This Delta deal was found by Cheapflights users on 8/27. 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 1/69:00 am -
2 stops19h 40m
Sun 1/245:35 pm -
2 stops20h 13m
Deal found 8/27![Delta logo]()
$1,188
This Delta deal was found by Cheapflights users on 8/31. 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.
Sat 2/203:40 pm -
1 stop15h 00m
Tue 3/1611:35 pm -
1 stop17h 08m
Deal found 8/31![Delta logo]()
$1,188
This Delta deal was found by Cheapflights users on 8/31. 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.
Fri 2/196:59 pm -
1 stop35h 41m
Thu 3/1111:35 pm -
1 stop14h 13m
Deal found 8/31![Delta logo]()
$1,196
This Delta deal was found by Cheapflights users on 8/27. 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.
Sun 10/1112:00 pm -
1 stop19h 45m
Sun 10/188:10 pm -
1 stop14h 59m
Deal found 8/27![Delta logo]()
$1,238
This Delta deal was found by Cheapflights users on 8/27. 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.
Sun 10/1112:00 pm -
1 stop19h 45m
Fri 10/238:10 pm -
1 stop16h 41m
Deal found 8/27![Delta logo]()
$1,238
This Delta deal was found by Cheapflights users on 8/28. 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.
Sun 10/410:05 am -
1 stop21h 40m
Fri 10/98:10 pm -
1 stop16h 41m
Deal found 8/28![Delta logo]()
$1,348
This Delta deal was found by Cheapflights users on 8/31. 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.
Tue 2/237:20 am -
1 stop23h 20m
Sun 3/1411:35 pm -
1 stop34h 37m
Deal found 8/31![Delta logo]()
$1,357
Last-minute flights from St. Louis to ArgentinaDiscover last-minute flight deals from St. Louis to Argentina. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Argentina. Data last updated September 1, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 8/28. 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.
Tue 9/83:40 pm -
1 stop16h 05m
Fri 9/117:35 am -
2 stops18h 07m
Deal found 8/28![LATAM Airlines logo]()
$5,422
This Justfly.com deal was found by Cheapflights users on 8/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:46 pm -
2 stops22h 44m
Fri 9/118:05 pm -
2 stops29h 37m
Deal found 8/28![LATAM Airlines logo]()
$5,475
This Delta deal was found by Cheapflights users on 8/28. 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.
Tue 9/83:40 pm -
1 stop16h 05m
Fri 9/118:10 pm -
1 stop29h 32m
Deal found 8/28![Delta logo]()
$5,833
This Gotogate deal was found by Cheapflights users on 8/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:40 pm -
3 stops45h 50m
Fri 9/114:50 pm -
2 stops23h 10m
Deal found 8/28![Multiple Airlines logo]()
$6,736
This LATAM Airlines deal was found by Cheapflights users on 8/28. 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 9/1512:00 pm -
1 stop19h 45m
Tue 9/227:35 am -
2 stops18h 07m
Deal found 8/28![LATAM Airlines logo]()
$1,178
This Air Canada deal was found by Cheapflights users on 8/28. 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 9/1512:10 pm -
3 stops48h 20m
Tue 9/224:50 pm -
2 stops47h 10m
Deal found 8/28![Multiple Airlines logo]()
$1,624
This LATAM Airlines deal was found by Cheapflights users on 8/27. 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 9/2312:00 pm -
2 stops17h 40m
Sun 10/45:35 pm -
2 stops19h 20m
Deal found 8/27![LATAM Airlines logo]()
$1,178
This LATAM Airlines deal was found by Cheapflights users on 8/27. 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 9/234:59 pm -
1 stop14h 46m
Sat 10/33:55 am -
2 stops21h 47m
Deal found 8/27![LATAM Airlines logo]()
$1,208
This Air Canada deal was found by Cheapflights users on 8/30. 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.
Wed 9/2312:10 pm -
3 stops24h 20m
Sun 10/44:50 pm -
2 stops29h 30m
Deal found 8/30![Multiple Airlines logo]()
$2,564
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 September 1, 2026.
Search for one-way flight options from St. Louis to Argentina. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sun 12/66:05 pm -
3 stops36h 45m
Deal found 8/27![Multiple Airlines logo]()
$482
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 12/237:49 pm -
3 stops52h 26m
Deal found 8/29![Multiple Airlines logo]()
$489
This KAYAK deal was found by Cheapflights users on 8/27. 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 12/610:38 am -
2 stops23h 22m
Deal found 8/27![GOL logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sun 12/66:05 pm -
3 stops44h 15m
Deal found 8/27![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Sat 10/314:26 pm -
3 stops43h 29m
Deal found 9/1![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Thu 10/155:53 pm -
3 stops54h 37m
Deal found 8/27![Multiple Airlines logo]()
$533
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Thu 10/154:30 pm -
3 stops40h 50m
Deal found 8/27![Multiple Airlines logo]()
$543
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 12/237:49 pm -
3 stops56h 41m
Deal found 8/29![Multiple Airlines logo]()
$564
This KAYAK deal was found by Cheapflights users on 8/27. 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 12/26:33 am -
2 stops36h 51m
Deal found 8/27![Copa Airlines logo]()
$593
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 12/217:49 pm -
3 stops52h 26m
Deal found 8/29![Multiple Airlines logo]()
$609
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Sun 12/276:00 am -
2 stops39h 52m
Deal found 8/29![Multiple Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Sun 12/276:00 am -
3 stops44h 05m
Deal found 8/29![Multiple Airlines logo]()
$624
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 September 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,133 (Expedia) |
One-way from | $482 (Kiwi.com) |
Popular in | May |
Cheapest in | October |
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 7,457,451 searches. Data last updated September 1, 2026.
Use the filters below to find and compare flights from St. Louis to Argentina that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Thu 2/18
9:00 am-9:40 am
1 stop21h 40m
Buenos Aires Ministro Pistarini
Tue 3/16
9:30 pm-10:48 am
1 stop15h 18m
$1,148
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Sun 2/21
6:59 pm-9:40 am
1 stop35h 41m
Buenos Aires Ministro Pistarini
Mon 3/15
11:35 pm-6:01 pm
1 stop20h 26m
$1,156
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Wed 1/6
3:40 pm-9:40 am
1 stop15h 00m
Buenos Aires Ministro Pistarini
Sun 1/24
9:30 pm-6:01 pm
1 stop23h 31m
$1,172
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Tue 10/13
10:14 am-7:40 am
2 stops19h 26m
Buenos Aires Jorge Newbery
Tue 10/20
3:45 pm-9:09 am
2 stops19h 24m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Wed 10/14
10:14 am-7:40 am
2 stops19h 26m
Buenos Aires Jorge Newbery
Wed 10/21
8:05 pm-1:20 pm
2 stops19h 15m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Mon 10/12
12:00 pm-7:40 am
2 stops17h 40m
Buenos Aires Jorge Newbery
Wed 10/21
8:05 pm-4:28 pm
2 stops22h 23m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Tue 10/13
5:35 pm-4:00 pm
2 stops20h 25m
Buenos Aires Jorge Newbery
Wed 10/21
8:05 pm-1:20 pm
2 stops19h 15m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Thu 10/15
12:00 pm-3:45 pm
2 stops25h 45m
Buenos Aires Ministro Pistarini
Thu 10/22
7:35 am-11:54 pm
2 stops18h 19m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Tue 10/13
7:20 pm-9:45 am
1 stop12h 25m
Buenos Aires Ministro Pistarini
Wed 10/21
4:45 pm-1:20 pm
2 stops22h 35m
$1,178
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Wed 1/6
9:00 am-7:40 am
2 stops19h 40m
Buenos Aires Jorge Newbery
Sun 1/24
5:35 pm-10:48 am
2 stops20h 13m
$1,188
Showing 1-10 of 41 resultsSorted by cheapest first
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 September 1, 2026.
Get a feel of what it's like to fly with Delta,LATAM Airlines, andAmerican 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.
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - 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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St. Louis and Argentina flights
Browse other St. Louis and Argentina flight options. Last updated on September 1, 2026.
Popular flight searches
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Top 3 airlines flying from St. Louis to Argentina
Discover the top 3 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 7,457,451 searches. Data last updated September 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$884 | Average$1,173 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,025 | Average$1,414 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,147 | Average$1,327 | FlexibilityNo cancel fee | On-time71% |