$308+ Cheap flights from Chicago (CHI) 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUE
Mar 20 — Mar 271
1 adult, Economy
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Find cheap flights from Chicago 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 Chicago to Buenos Aires
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Cheapest flights from Chicago to Buenos AiresExplore the most affordable flight options available from Chicago to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
Explore the most affordable flight options available from Chicago to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2012:59 am
ORD
- EZE
2 stops24h 46m
Multiple Airlines
Wed 7/12:45 am
EZE
- ORD
1 stop22h 55m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$909
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:23 pm
ORD
- EZE
2 stops30h 12m
Multiple Airlines
Mon 3/211:00 am
EZE
- ORD
1 stop25h 39m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$911
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:45 am
ORD
- EZE
1 stop15h 20m
Multiple Airlines
Wed 4/17:45 pm
EZE
- ORD
2 stops27h 35m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$912
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:06 am
ORD
- EZE
2 stops17h 54m
Multiple Airlines
Sun 4/198:40 am
EZE
- ORD
1 stop15h 30m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:27 am
ORD
- EZE
3 stops34h 09m
Multiple Airlines
Sat 4/259:15 pm
EZE
- ORD
1 stop26h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$916
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- AEP
2 stops19h 35m
Multiple Airlines
Sun 4/2612:45 pm
AEP
- ORD
1 stop34h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$916
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:44 pm
ORD
- EZE
3 stops36h 01m
Multiple Airlines
Tue 3/105:25 am
EZE
- ORD
3 stops45h 15m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$917
This Mytrip deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:55 pm
ORD
- EZE
3 stops32h 01m
Multiple Airlines
Mon 3/3011:35 am
EZE
- ORD
3 stops35h 45m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$918
This Mytrip deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:20 pm
ORD
- EZE
1 stop28h 20m
Multiple Airlines
Sat 6/69:15 pm
EZE
- ORD
3 stops34h 37m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$919
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:45 am
ORD
- EZE
2 stops19h 15m
Multiple Airlines
Sun 10/188:40 am
EZE
- ORD
1 stop15h 30m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$920
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Sun 3/158:00 am
ORD
- AEP
2 stops34h 40m
Multiple Airlines
Mon 3/309:30 pm
AEP
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$920
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:20 pm
ORD
- EZE
2 stops22h 16m
Multiple Airlines
Mon 5/2510:45 pm
EZE
- ORD
1 stop15h 24m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$921
Best flights from Chicago to Buenos AiresDiscover carefully curated flight deals from Chicago to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
Discover carefully curated flight deals from Chicago to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:40 am
ORD
- EZE
3 stops51h 50m
Multiple Airlines
Thu 4/165:00 am
EZE
- ORD
3 stops44h 05m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$912
This Copa Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:34 am
ORD
- EZE
1 stop14h 28m
Copa Airlines
Tue 3/172:43 pm
EZE
- ORD
1 stop24h 48m
Copa Airlines
Deal found 2/16![Copa Airlines logo]()
$925
This Air Canada deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/193:45 pm
ORD
- EZE
2 stops20h 45m
Air Canada
Mon 4/274:30 pm
EZE
- ORD
2 stops20h 23m
Air Canada
Deal found 2/16![Air Canada logo]()
$934
This KAYAK deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/111:37 pm
ORD
- EZE
1 stop18h 38m
LATAM Airlines
Wed 3/1810:25 pm
EZE
- ORD
1 stop16h 32m
LATAM Airlines
Deal found 2/18![LATAM Airlines logo]()
$937
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:47 pm
MDW
- EZE
2 stops18h 48m
Delta
Mon 3/2310:25 pm
EZE
- MDW
2 stops21h 29m
Delta
Deal found 2/15![Delta logo]()
$941
This oojo deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:20 pm
ORD
- AEP
1 stop28h 20m
Avianca
Mon 5/117:00 am
AEP
- ORD
1 stop16h 20m
Avianca
Deal found 2/15![Avianca logo]()
$945
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:06 am
ORD
- EZE
2 stops17h 54m
Multiple Airlines
Sun 4/198:40 am
EZE
- ORD
1 stop15h 30m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$913
This Copa Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:34 am
ORD
- EZE
1 stop17h 36m
Copa Airlines
Sat 3/143:47 am
EZE
- ORD
1 stop23h 17m
Copa Airlines
Deal found 2/15![Copa Airlines logo]()
$925
This LATAM Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1610:45 am
MDW
- AEP
2 stops19h 10m
LATAM Airlines
Mon 3/233:40 pm
AEP
- MDW
2 stops20h 16m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$937
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:10 pm
MDW
- EZE
2 stops17h 50m
Delta
Tue 3/248:55 pm
EZE
- MDW
2 stops17h 34m
Delta
Deal found 2/16![Delta logo]()
$941
This oojo deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:20 pm
ORD
- AEP
1 stop28h 20m
Avianca
Sat 5/27:00 am
AEP
- ORD
1 stop16h 20m
Avianca
Deal found 2/15![Avianca logo]()
$947
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- AEP
2 stops19h 35m
Multiple Airlines
Sun 4/2612:45 pm
AEP
- ORD
1 stop34h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$916
This oojo deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:20 pm
ORD
- AEP
1 stop28h 20m
Avianca
Mon 4/277:00 am
AEP
- ORD
1 stop16h 20m
Avianca
Deal found 2/14![Avianca logo]()
$947
This KAYAK deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:45 pm
MDW
- EZE
1 stop15h 35m
LATAM Airlines
Wed 4/1511:30 am
EZE
- MDW
2 stops24h 26m
LATAM Airlines
Deal found 2/15![LATAM Airlines logo]()
$951
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:07 pm
MDW
- EZE
1 stop13h 38m
Delta
Tue 4/147:45 am
EZE
- MDW
2 stops30h 22m
Delta
Deal found 2/16![Delta logo]()
$957
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:20 pm
ORD
- EZE
2 stops22h 16m
Multiple Airlines
Mon 5/2510:45 pm
EZE
- ORD
1 stop15h 24m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$921
This KAYAK deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:21 pm
MDW
- EZE
1 stop14h 24m
LATAM Airlines
Tue 5/1211:30 am
EZE
- MDW
2 stops24h 21m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:52 pm
MDW
- EZE
1 stop18h 53m
Delta
Wed 5/138:10 pm
EZE
- MDW
1 stop15h 41m
Delta
Deal found 2/16![Delta logo]()
$957
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:59 am
ORD
- EZE
3 stops23h 46m
Multiple Airlines
Wed 6/249:55 pm
EZE
- ORD
2 stops27h 45m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$925
This LATAM Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:21 pm
MDW
- EZE
1 stop14h 24m
LATAM Airlines
Mon 5/118:10 pm
EZE
- MDW
1 stop15h 41m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:45 am
MDW
- EZE
1 stop21h 00m
Delta
Tue 4/148:10 pm
EZE
- MDW
1 stop17h 57m
Delta
Deal found 2/15![Delta logo]()
$957
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:15 pm
ORD
- AEP
2 stops35h 15m
Multiple Airlines
Sun 5/312:45 pm
AEP
- ORD
1 stop34h 35m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$927
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:41 am
MDW
- EZE
1 stop21h 04m
Delta
Wed 5/138:10 pm
EZE
- MDW
1 stop17h 46m
Delta
Deal found 2/16![Delta logo]()
$957
This KAYAK deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:45 am
MDW
- AEP
2 stops18h 55m
LATAM Airlines
Tue 4/148:05 pm
AEP
- MDW
2 stops18h 02m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$957
This Booking.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:13 am
ORD
- EZE
3 stops53h 17m
Multiple Airlines
Sat 5/239:15 pm
EZE
- ORD
1 stop26h 55m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$930
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:07 pm
MDW
- EZE
1 stop13h 38m
Delta
Wed 4/158:10 pm
EZE
- MDW
1 stop15h 46m
Delta
Deal found 2/16![Delta logo]()
$957
This KAYAK deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:07 pm
MDW
- AEP
2 stops18h 43m
LATAM Airlines
Tue 4/148:05 pm
AEP
- MDW
2 stops18h 02m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$957
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
ORD
- AEP
3 stops29h 55m
Multiple Airlines
Tue 3/109:30 pm
AEP
- ORD
3 stops25h 43m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$934
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:21 pm
MDW
- EZE
1 stop14h 24m
Delta
Mon 4/278:10 pm
EZE
- MDW
1 stop15h 46m
Delta
Deal found 2/15![Delta logo]()
$957
This KAYAK deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:00 am
MDW
- AEP
2 stops23h 40m
LATAM Airlines
Mon 4/138:05 pm
AEP
- MDW
2 stops18h 02m
LATAM Airlines
Deal found 2/16![LATAM Airlines logo]()
$957
Last-minute flights from Chicago to Buenos AiresDiscover last-minute flight deals from Chicago to Buenos Aires. Data last updated February 18, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Buenos Aires. Data last updated February 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/189:18 am
ORD
- EZE
2 stops21h 57m
Multiple Airlines
Tue 2/248:00 am
EZE
- ORD
1 stop28h 39m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$923
This Kiwi.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:23 pm
ORD
- EZE
2 stops30h 12m
Multiple Airlines
Mon 3/211:00 am
EZE
- ORD
1 stop25h 39m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$911
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:44 pm
ORD
- EZE
3 stops36h 01m
Multiple Airlines
Tue 3/105:25 am
EZE
- ORD
3 stops45h 15m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$917
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:23 pm
ORD
- EZE
1 stop20h 52m
Multiple Airlines
Fri 4/174:45 am
EZE
- ORD
2 stops20h 12m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$926
This Copa Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:34 am
ORD
- EZE
1 stop17h 36m
Copa Airlines
Sat 3/143:47 am
EZE
- ORD
1 stop23h 17m
Copa Airlines
Deal found 2/17![Copa Airlines logo]()
$925
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Sun 3/158:00 am
ORD
- AEP
2 stops34h 40m
Multiple Airlines
Mon 3/309:30 pm
AEP
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$920
This oojo deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/151:58 am
ORD
- EZE
1 stop17h 57m
Aeromexico
Mon 3/2312:00 pm
EZE
- ORD
1 stop27h 43m
Aeromexico
Deal found 2/15![Aeromexico logo]()
$924
This Mytrip deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:51 pm
ORD
- AEP
3 stops33h 29m
Multiple Airlines
Fri 3/204:40 am
AEP
- ORD
3 stops35h 36m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$925
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:45 am
ORD
- EZE
1 stop15h 20m
Multiple Airlines
Wed 4/17:45 pm
EZE
- ORD
2 stops27h 35m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$912
This Mytrip deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:55 pm
ORD
- EZE
3 stops32h 01m
Multiple Airlines
Mon 3/3011:35 am
EZE
- ORD
3 stops35h 45m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$918
This Booking.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:45 am
ORD
- EZE
1 stop15h 20m
Arajet
Mon 3/309:15 pm
EZE
- ORD
1 stop28h 25m
Arajet
Deal found 2/14![Arajet logo]()
$920
This oojo deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:20 pm
ORD
- EZE
1 stop28h 20m
Avianca
Sat 5/24:50 pm
EZE
- ORD
1 stop30h 30m
Avianca
Deal found 2/16![Avianca logo]()
$927
One-way flights from Chicago to Buenos AiresSearch for one-way flight options from Chicago to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
Search for one-way flight options from Chicago to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:30 am
MDW
- AEP
2 stops24h 00m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:51 pm
ORD
- AEP
2 stops37h 39m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:20 pm
ORD
- AEP
2 stops21h 03m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:30 am
MDW
- AEP
2 stops24h 00m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:55 am
ORD
- AEP
2 stops19h 35m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$321
This Trip.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:55 am
ORD
- AEP
2 stops19h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:00 am
ORD
- EZE
2 stops21h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/163:22 pm
ORD
- EZE
2 stops31h 08m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$344
This Booking.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:27 am
ORD
- EZE
1 stop14h 18m
Arajet
Deal found 2/15![Arajet logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:30 am
MDW
- EZE
2 stops18h 53m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$348
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:59 am
ORD
- EZE
3 stops23h 01m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:30 am
MDW
- EZE
3 stops46h 35m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$354
Find flight deals from Chicago to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $909 (Kiwi.com) |
One-way from | $308 (Kiwi.com) |
Popular in | April |
Cheapest in | November |
Average price | $1,074 |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago 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 18, 2026.
Use the filters below to find and compare flights from Chicago to Buenos Aires that are best for you.
Fly from
Chicago
Fly to
Buenos Aires
Route
Depart
Return
Price
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sat 4/11
8:40 am-2:30 pm
3 stops51h 50m
Buenos Aires Ministro Pistarini
Thu 4/16
5:00 am-11:05 pm
3 stops44h 05m
$912
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Fri 4/3
8:06 am-4:00 am
2 stops17h 54m
Buenos Aires Ministro Pistarini
Sun 4/19
8:40 am-10:10 pm
1 stop15h 30m
$913
ChicagoBuenos Aires
ORD - AEP
ORDAEP
Chicago O'Hare Intl
Mon 4/13
10:55 am-8:30 am
2 stops19h 35m
Buenos Aires Jorge Newbery
Sun 4/26
12:45 pm-9:20 pm
1 stop34h 35m
$916
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Wed 5/13
11:20 pm-11:36 pm
2 stops22h 16m
Buenos Aires Ministro Pistarini
Mon 5/25
10:45 pm-12:09 pm
1 stop15h 24m
$921
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Wed 3/11
8:34 am-1:02 am
1 stop14h 28m
Buenos Aires Ministro Pistarini
Tue 3/17
2:43 pm-1:31 pm
1 stop24h 48m
$925
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sun 3/8
8:34 am-4:10 am
1 stop17h 36m
Buenos Aires Ministro Pistarini
Sat 3/14
3:47 am-1:04 am
1 stop23h 17m
$925
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Mon 6/22
1:59 am-3:45 am
3 stops23h 46m
Buenos Aires Ministro Pistarini
Wed 6/24
9:55 pm-11:40 pm
2 stops27h 45m
$925
ChicagoBuenos Aires
ORD - AEP
ORDAEP
Chicago O'Hare Intl
Fri 4/24
7:15 pm-8:30 am
2 stops35h 15m
Buenos Aires Jorge Newbery
Sun 5/3
12:45 pm-9:20 pm
1 stop34h 35m
$927
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sat 5/16
7:13 am-2:30 pm
3 stops53h 17m
Buenos Aires Ministro Pistarini
Sat 5/23
9:15 pm-10:10 pm
1 stop26h 55m
$930
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sun 4/19
3:45 pm-2:30 pm
2 stops20h 45m
Buenos Aires Ministro Pistarini
Mon 4/27
4:30 pm-10:53 am
2 stops20h 23m
$934
Showing 1-10 of 60 results
Compare providers for flights from Chicago to Buenos Aires
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Buenos Aires in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Chicago-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Buenos Aires flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Chicago with our price prediction graph.
CHI-BUE
MDW-AEP
ORD-AEP
ORD-EZE
MDW-EZE
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 Chicago to Buenos Aires
CHI-BUE
MDW-AEP
ORD-AEP
ORD-EZE
MDW-EZE
How far ahead should I book a flight from Chicago to Buenos Aires?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Buenos Aires. Price data was last updated on February 13, 2026.
The best time to book flights from Chicago to Buenos Aires is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago to Buenos Aires?
Currently, October is the cheapest month in which you can book a flight from Chicago to Buenos Aires (average of $380). Flying from Chicago to Buenos Aires in June is currently the most expensive (average of $1,144). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Chicago to Buenos Aires?
Reviews of airlines servicing Buenos Aires
Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated February 18, 2026.
Peruse reviews from past customers who have flown with Delta, Copa Airlines, and United Airlines from Chicago to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Chicago 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
Other flights from Chicago
Popular flights
Alternative routes for Chicago 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 18, 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 Chicago to Buenos Aires by cabin class
Find flights from Chicago to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Buenos Aires flights
Browse other Chicago and Buenos Aires flight options. Last updated on February 18, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on February 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Chicago to Buenos Aires
Discover the top 6 airlines that operate flights from Chicago 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$360 | Average$878 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$569 | Average$966 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$750 | Average$990 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$951 | Average$1,315 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$951 | Average$1,140 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,015 | Average$1,256 | FlexibilityNo cancel fee | On-time71% |