$573+ Cheap flights from Missouri to Buenos Aires (BUE)
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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUE
Mar 6 — Mar 131
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Missouri to Buenos Aires with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Buenos Aires
Cheapest
Best
Last-minute
One-way
Cheapest flights from Missouri to Buenos AiresExplore the most affordable flight options available from Missouri to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
Explore the most affordable flight options available from Missouri to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
This Mytrip deal was found by Cheapflights users on 2/3. 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 5/212:12 pm
MCI
- EZE
3 stops25h 28m
Multiple Airlines
Sat 5/94:35 pm
EZE
- MCI
3 stops33h 24m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$922
This KAYAK deal was found by Cheapflights users on 2/1. 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 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
Tue 3/103:45 pm
AEP
- STL
2 stops21h 24m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/24:03 pm
MCI
- EZE
1 stop14h 17m
United Airlines
Mon 3/910:55 pm
EZE
- MCI
1 stop17h 12m
United Airlines
Deal found 2/2![United Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/2. 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 3/105:21 pm
STL
- EZE
1 stop13h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop14h 10m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:13 am
STL
- EZE
2 stops21h 02m
LATAM Airlines
Tue 3/108:00 am
EZE
- STL
2 stops17h 58m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$941
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- AEP
2 stops18h 04m
Multiple Airlines
Mon 3/95:10 pm
AEP
- MCI
3 stops24h 19m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$988
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:12 pm
MCI
- EZE
3 stops25h 28m
Multiple Airlines
Tue 6/27:45 pm
EZE
- MCI
3 stops30h 14m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,006
This United Airlines deal was found by Cheapflights users on 2/4. 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
1 stop14h 16m
United Airlines
Deal found 2/4![United Airlines logo]()
$1,008
This Delta deal was found by Cheapflights users on 2/2. 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 9/216:42 pm
MCI
- EZE
1 stop13h 03m
Delta
Mon 9/288:10 pm
EZE
- MCI
1 stop22h 12m
Delta
Deal found 2/2![Delta logo]()
$1,047
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- EZE
2 stops35h 09m
Multiple Airlines
Mon 3/97:30 am
EZE
- MCI
3 stops33h 59m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,063
This Ovago deal was found by Cheapflights users on 2/4. 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 3/87:03 am
STL
- EZE
1 stop22h 17m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop16h 14m
LATAM Airlines
Deal found 2/4![LATAM Airlines logo]()
$1,063
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:21 pm
STL
- AEP
2 stops21h 39m
LATAM Airlines
Thu 3/263:40 pm
AEP
- STL
2 stops21h 29m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,067
Best flights from Missouri to Buenos AiresDiscover carefully curated flight deals from Missouri to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Missouri to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Mytrip deal was found by Cheapflights users on 2/3. 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 5/212:12 pm
MCI
- EZE
3 stops25h 28m
Multiple Airlines
Sat 5/94:35 pm
EZE
- MCI
3 stops33h 24m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$922
This KAYAK deal was found by Cheapflights users on 2/1. 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 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
Tue 3/103:45 pm
AEP
- STL
2 stops21h 24m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/24:03 pm
MCI
- EZE
1 stop14h 17m
United Airlines
Mon 3/910:55 pm
EZE
- MCI
1 stop17h 12m
United Airlines
Deal found 2/2![United Airlines logo]()
$937
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1910:12 am
STL
- EZE
1 stop20h 48m
Delta
Thu 3/268:55 pm
EZE
- STL
1 stop16h 14m
Delta
Deal found 2/1![Delta logo]()
$937
This KAYAK deal was found by Cheapflights users on 2/2. 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 3/105:21 pm
STL
- AEP
2 stops23h 19m
LATAM Airlines
Tue 3/176:20 pm
AEP
- STL
2 stops18h 49m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:28 pm
STL
- EZE
1 stop13h 52m
United Airlines
Tue 3/109:05 pm
EZE
- STL
1 stop14h 16m
United Airlines
Deal found 2/1![United Airlines logo]()
$937
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- AEP
2 stops18h 04m
Multiple Airlines
Mon 3/95:10 pm
AEP
- MCI
3 stops24h 19m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$988
This Gurufare deal was found by Cheapflights users on 2/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:43 am
MCI
- EZE
1 stop19h 17m
LATAM Airlines
Mon 3/98:00 am
EZE
- MCI
2 stops18h 12m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$937
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:12 pm
MCI
- EZE
3 stops25h 28m
Multiple Airlines
Tue 6/27:45 pm
EZE
- MCI
3 stops30h 14m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,006
This United Airlines deal was found by Cheapflights users on 2/4. 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
1 stop14h 16m
United Airlines
Deal found 2/4![United Airlines logo]()
$1,008
This Delta deal was found by Cheapflights users on 2/2. 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 5/15:13 pm
MCI
- EZE
1 stop14h 32m
Delta
Fri 5/88:10 pm
EZE
- MCI
1 stop17h 01m
Delta
Deal found 2/2![Delta logo]()
$1,127
This KAYAK deal was found by Cheapflights users on 2/2. 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 3/105:21 pm
STL
- EZE
2 stops22h 43m
LATAM Airlines
Tue 3/178:00 am
EZE
- STL
2 stops17h 58m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:00 pm
STL
- EZE
1 stop13h 00m
LATAM Airlines
Tue 3/107:45 am
EZE
- STL
2 stops18h 13m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$937
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- EZE
2 stops35h 09m
Multiple Airlines
Mon 3/97:30 am
EZE
- MCI
3 stops33h 59m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 5/22:59 pm
MCI
- EZE
1 stop15h 01m
United Airlines
Sat 5/99:00 pm
EZE
- MCI
1 stop14h 26m
United Airlines
Deal found 2/3![United Airlines logo]()
$1,127
This Mytrip deal was found by Cheapflights users on 2/3. 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 5/26:00 am
MCI
- AEP
2 stops21h 40m
Multiple Airlines
Sat 5/93:45 pm
AEP
- MCI
3 stops21h 22m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,101
This Ovago deal was found by Cheapflights users on 2/4. 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 3/87:03 am
STL
- EZE
1 stop22h 17m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop16h 14m
LATAM Airlines
Deal found 2/4![LATAM Airlines logo]()
$1,063
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:21 pm
STL
- AEP
2 stops21h 39m
LATAM Airlines
Thu 3/263:40 pm
AEP
- STL
2 stops21h 29m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,067
This Mytrip deal was found by Cheapflights users on 2/2. 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 2/184:24 pm
MCI
- AEP
3 stops34h 16m
Multiple Airlines
Wed 2/255:10 pm
AEP
- MCI
2 stops20h 20m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,251
This KAYAK deal was found by Cheapflights users on 2/2. 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 2/2![LATAM Airlines logo]()
$1,099
This Mytrip deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 am
MCI
- AEP
3 stops29h 30m
Multiple Airlines
Wed 8/52:30 pm
AEP
- MCI
3 stops35h 29m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,282
This KAYAK deal was found by Cheapflights users on 2/2. 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 5/112:25 pm
MCI
- EZE
2 stops21h 05m
LATAM Airlines
Fri 5/87:35 am
EZE
- MCI
2 stops18h 14m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,111
This Orbitz deal was found by Cheapflights users on 2/2. 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 3/29:59 am
MCI
- AEP
2 stops29h 41m
LATAM Airlines
Mon 3/98:25 pm
AEP
- MCI
2 stops29h 47m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,127
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 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 stops32h 00m
LATAM Airlines
Mon 5/48:05 pm
AEP
- STL
2 stops23h 39m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,143
This KAYAK deal was found by Cheapflights users on 2/2. 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 5/195:12 pm
MCI
- AEP
2 stops23h 18m
LATAM Airlines
Tue 7/148:05 pm
AEP
- MCI
2 stops39h 26m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,144
This KAYAK deal was found by Cheapflights users on 2/3. 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 5/195:12 pm
MCI
- EZE
1 stop14h 33m
LATAM Airlines
Tue 7/141:20 pm
EZE
- MCI
2 stops33h 43m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$1,148
This KAYAK deal was found by Cheapflights users on 2/2. 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 5/13:04 pm
MCI
- AEP
2 stops18h 56m
LATAM Airlines
Fri 5/85:05 pm
AEP
- MCI
2 stops20h 06m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,201
This KAYAK deal was found by Cheapflights users on 2/3. 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 7/155:26 pm
MCI
- AEP
2 stops20h 34m
LATAM Airlines
Wed 7/228:05 pm
AEP
- MCI
2 stops17h 02m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$1,294
This Ovago deal was found by Cheapflights users on 2/3. 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.
Thu 7/912:04 pm
MCI
- AEP
2 stops17h 36m
LATAM Airlines
Thu 7/168:40 am
AEP
- MCI
2 stops26h 51m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$1,301
This KAYAK deal was found by Cheapflights users on 2/2. 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 7/55:30 pm
STL
- AEP
2 stops20h 30m
LATAM Airlines
Fri 7/105:05 pm
AEP
- STL
2 stops21h 29m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,371
Last-minute flights from Missouri to Buenos AiresDiscover last-minute flight deals from Missouri to Buenos Aires. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Buenos Aires. Data last updated February 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/24:03 pm
MCI
- EZE
1 stop14h 17m
United Airlines
Mon 3/910:55 pm
EZE
- MCI
1 stop17h 12m
United Airlines
Deal found 2/2![United Airlines logo]()
$937
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- AEP
2 stops18h 04m
Multiple Airlines
Mon 3/95:10 pm
AEP
- MCI
3 stops24h 19m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$988
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- EZE
2 stops35h 09m
Multiple Airlines
Mon 3/97:30 am
EZE
- MCI
3 stops33h 59m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,063
This Orbitz deal was found by Cheapflights users on 2/2. 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 3/29:59 am
MCI
- AEP
2 stops29h 41m
LATAM Airlines
Mon 3/98:25 pm
AEP
- MCI
2 stops29h 47m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,127
This KAYAK deal was found by Cheapflights users on 2/1. 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 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
Tue 3/103:45 pm
AEP
- STL
2 stops21h 24m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:13 am
STL
- EZE
2 stops21h 02m
LATAM Airlines
Tue 3/108:00 am
EZE
- STL
2 stops17h 58m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$941
This United Airlines deal was found by Cheapflights users on 2/4. 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
1 stop14h 16m
United Airlines
Deal found 2/4![United Airlines logo]()
$1,008
This Ovago deal was found by Cheapflights users on 2/4. 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 3/87:03 am
STL
- EZE
1 stop22h 17m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop16h 14m
LATAM Airlines
Deal found 2/4![LATAM Airlines logo]()
$1,063
This KAYAK deal was found by Cheapflights users on 2/2. 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 2/2![LATAM Airlines logo]()
$1,099
This LATAM Airlines deal was found by Cheapflights users on 2/2. 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 3/812:04 pm
STL
- EZE
1 stop18h 56m
Delta
Tue 3/178:55 pm
EZE
- STL
1 stop21h 21m
Delta
Deal found 2/2![Delta logo]()
$1,107
This LATAM Airlines deal was found by Cheapflights users on 2/2. 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 3/105:21 pm
STL
- EZE
1 stop13h 39m
LATAM Airlines
Tue 3/178:55 pm
EZE
- STL
1 stop14h 10m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$937
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:21 pm
STL
- AEP
2 stops21h 39m
LATAM Airlines
Thu 3/263:40 pm
AEP
- STL
2 stops21h 29m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,067
One-way flights from Missouri to Buenos AiresSearch for one-way flight options from Missouri to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Missouri to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 6/196:00 am
MCI
- AEP
3 stops51h 30m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$573
This Mytrip deal was found by Cheapflights users on 2/2. 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 6/196:00 am
MCI
- EZE
2 stops22h 45m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$580
This Expedia deal was found by Cheapflights users on 2/3. 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 6/173:36 pm
MCI
- EZE
2 stops36h 34m
Delta
Deal found 2/3![Delta logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 6/175:00 pm
MCI
- EZE
3 stops32h 45m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$739
This Expedia deal was found by Cheapflights users on 2/3. 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 6/171:13 pm
MCI
- EZE
2 stops20h 17m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$743
This SmartFares deal was found by Cheapflights users on 2/3. 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 6/176:42 pm
MCI
- AEP
2 stops34h 58m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$746
This BusinessClass deal was found by Cheapflights users on 2/3. 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.
Fri 6/1912:04 pm
MCI
- EZE
1 stop19h 41m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$768
This FlightHub deal was found by Cheapflights users on 2/2. 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 6/1910:35 am
MCI
- AEP
2 stops29h 55m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,278
Find flight deals from Missouri to Buenos Aires
Keep the following information in mind while searching for Missouri to Buenos Aires flight deals. Data was last updated February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $922 (Mytrip) |
One-way from | $573 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,321 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Buenos Aires 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 4, 2026.
Use the filters below to find and compare flights from Missouri to Buenos Aires that are best for you.
Fly from
Missouri
Fly to
Buenos Aires
Route
Depart
Return
Price
Kansas CityBuenos Aires
MCI - EZE
MCIEZE
Kansas City
Sat 5/2
12:12 pm-3:40 pm
3 stops25h 28m
Buenos Aires Ministro Pistarini
Sat 5/9
4:35 pm-11:59 pm
3 stops33h 24m
$922
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 3/3
5:00 pm-4:00 pm
2 stops20h 00m
Buenos Aires Jorge Newbery
Tue 3/10
3:45 pm-11:09 am
2 stops21h 24m
$937
Kansas CityBuenos Aires
MCI - EZE
MCIEZE
Kansas City
Mon 3/2
4:03 pm-9:20 am
1 stop14h 17m
Buenos Aires Ministro Pistarini
Mon 3/9
10:55 pm-2:07 pm
1 stop17h 12m
$937
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Thu 3/19
10:12 am-9:00 am
1 stop20h 48m
Buenos Aires Ministro Pistarini
Thu 3/26
8:55 pm-11:09 am
1 stop16h 14m
$937
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
Tue 3/10
5:21 pm-6:40 pm
2 stops23h 19m
Buenos Aires Jorge Newbery
Tue 3/17
6:20 pm-11:09 am
2 stops18h 49m
$937
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 3/3
4:28 pm-9:20 am
1 stop13h 52m
Buenos Aires Ministro Pistarini
Tue 3/10
9:05 pm-9:21 am
1 stop14h 16m
$937
Kansas CityBuenos Aires
MCI - EZE
MCIEZE
Kansas City
Mon 3/2
10:43 am-9:00 am
1 stop19h 17m
Buenos Aires Ministro Pistarini
Mon 3/9
8:00 am-12:12 am
2 stops18h 12m
$937
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 3/10
5:21 pm-6:04 pm
2 stops22h 43m
Buenos Aires Ministro Pistarini
Tue 3/17
8:00 am-11:58 pm
2 stops17h 58m
$937
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
Tue 3/3
5:00 pm-9:00 am
1 stop13h 00m
Buenos Aires Ministro Pistarini
Tue 3/10
7:45 am-11:58 pm
2 stops18h 13m
$937
Kansas CityBuenos Aires
MCI - AEP
MCIAEP
Kansas City
Mon 3/2
11:26 am-8:30 am
2 stops18h 04m
Buenos Aires Jorge Newbery
Mon 3/9
5:10 pm-3:29 pm
3 stops24h 19m
$988
Showing 1-10 of 38 results
Best time to book a flight from Missouri to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Missouri with our price prediction graph.
STL-AEP
MCI-EZE
STL-EZE
MCI-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 Missouri to Buenos Aires
USMO-BUE
STL-AEP
MCI-EZE
STL-EZE
MCI-AEP
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buenos Aires flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Missouri to Buenos Aires
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buenos Aires
Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 4, 2026.
Complete your trip
Complete your trip to Buenos Aires by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Buenos Aires by cabin class
Find flights from Missouri to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Buenos Aires flights
Browse other Missouri and Buenos Aires flight options. Last updated on February 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Buenos Aires flights
Consider these flights traveling from Missouri to Buenos Aires.
Top 2 airlines flying from Missouri to Buenos Aires
Discover the top 2 airlines that operate flights from Missouri to Buenos Aires. 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,025 | Average$1,289 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,179 | Average$1,292 | FlexibilityNo cancel fee | On-time69% |