$311+ Cheap flights from O'Hare Intl (ORD) 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUE
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Cheapest flights from O'Hare Intl to Buenos AiresExplore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
Explore the most affordable flight options available from O'Hare Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
This Booking.com deal was found by Cheapflights users on 5/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Sun 10/258:40 am
EZE
- ORD
1 stop15h 30m
Arajet
Deal found 5/31![Arajet logo]()
$784
This Gotogate deal was found by Cheapflights users on 6/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:45 am
ORD
- EZE
1 stop22h 00m
Arajet
Thu 10/157:45 am
EZE
- ORD
1 stop17h 55m
Arajet
Deal found 6/2![Arajet logo]()
$792
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Fri 9/256:45 am
ORD
- EZE
1 stop22h 45m
Arajet
Sun 10/118:40 am
EZE
- ORD
1 stop15h 30m
Arajet
Deal found 6/1![Arajet logo]()
$794
This Booking.com deal was found by Cheapflights users on 5/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Sun 8/308:40 am
EZE
- ORD
1 stop15h 30m
Arajet
Deal found 5/29![Arajet logo]()
$797
This Booking.com deal was found by Cheapflights users on 5/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Thu 10/297:10 am
EZE
- ORD
1 stop18h 30m
Arajet
Deal found 5/28![Arajet logo]()
$798
This Arajet deal was found by Cheapflights users on 6/1. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:45 am
ORD
- EZE
1 stop22h 45m
Arajet
Wed 10/149:15 pm
EZE
- ORD
1 stop28h 25m
Arajet
Deal found 6/1![Arajet logo]()
$801
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 9/215:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Thu 10/157:45 am
EZE
- ORD
1 stop17h 55m
Arajet
Deal found 5/29![Arajet logo]()
$819
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:30 am
ORD
- EZE
1 stop13h 45m
Arajet
Thu 9/39:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 5/31![Arajet logo]()
$822
This LATAM Airlines deal was found by Cheapflights users on 5/28. 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.
Sat 10/243:35 pm
ORD
- AEP
2 stops23h 25m
LATAM Airlines
Thu 10/295:05 pm
AEP
- ORD
2 stops23h 08m
LATAM Airlines
Deal found 5/28![LATAM Airlines logo]()
$825
This LATAM Airlines deal was found by Cheapflights users on 5/31. 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.
Sat 11/285:55 pm
ORD
- AEP
2 stops19h 05m
LATAM Airlines
Thu 12/32:55 pm
AEP
- ORD
2 stops20h 39m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$870
This Mytrip deal was found by Cheapflights users on 6/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:45 am
ORD
- AEP
2 stops26h 35m
Multiple Airlines
Sat 11/144:30 pm
AEP
- ORD
2 stops30h 50m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$897
This Mytrip deal was found by Cheapflights users on 6/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:00 pm
ORD
- AEP
3 stops33h 20m
Multiple Airlines
Wed 11/2512:50 pm
AEP
- ORD
3 stops36h 16m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$914
Best flights from O'Hare Intl to Buenos AiresDiscover carefully curated flight deals from O'Hare Intl to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
Discover carefully curated flight deals from O'Hare Intl to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
This Arajet deal was found by Cheapflights users on 5/29. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Thu 9/39:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 5/29![Arajet logo]()
$823
This Copa Airlines deal was found by Cheapflights users on 6/1. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:01 am
ORD
- EZE
1 stop21h 56m
Copa Airlines
Wed 9/165:25 am
EZE
- ORD
1 stop21h 37m
Copa Airlines
Deal found 6/1![Copa Airlines logo]()
$946
This Mytrip deal was found by Cheapflights users on 5/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:12 pm
ORD
- AEP
2 stops18h 18m
Multiple Airlines
Mon 8/245:35 pm
AEP
- ORD
2 stops32h 12m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,028
This Justfly.com deal was found by Cheapflights users on 5/28. 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.
Mon 8/171:50 pm
ORD
- EZE
2 stops17h 50m
LATAM Airlines
Fri 9/48:10 pm
EZE
- ORD
2 stops22h 56m
LATAM Airlines
Deal found 5/28![LATAM Airlines logo]()
$1,080
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 9/16:25 pm
ORD
- AEP
2 stops19h 35m
Delta
Tue 9/158:05 pm
AEP
- ORD
2 stops18h 35m
Delta
Deal found 6/2![Delta logo]()
$1,093
This FlightHub deal was found by Cheapflights users on 6/2. 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 11/1310:20 pm
ORD
- AEP
1 stop28h 20m
Avianca
Fri 11/277:00 am
AEP
- ORD
1 stop16h 20m
Avianca
Deal found 6/2![Avianca logo]()
$1,162
This Arajet deal was found by Cheapflights users on 6/1. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/153:20 am
ORD
- EZE
1 stop13h 55m
Arajet
Wed 3/39:15 pm
EZE
- ORD
1 stop28h 25m
Arajet
Deal found 6/1![Arajet logo]()
$849
This Copa Airlines deal was found by Cheapflights users on 6/1. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:21 pm
ORD
- EZE
1 stop31h 30m
Copa Airlines
Mon 8/178:59 am
EZE
- ORD
1 stop31h 00m
Copa Airlines
Deal found 6/1![Copa Airlines logo]()
$946
This Arajet deal was found by Cheapflights users on 6/1. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:45 am
ORD
- EZE
1 stop34h 55m
Arajet
Wed 3/39:15 pm
EZE
- ORD
1 stop28h 25m
Arajet
Deal found 6/1![Arajet logo]()
$869
This Copa Airlines deal was found by Cheapflights users on 5/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:21 pm
ORD
- EZE
1 stop14h 30m
Copa Airlines
Mon 7/62:49 pm
EZE
- ORD
1 stop25h 08m
Copa Airlines
Deal found 5/30![Copa Airlines logo]()
$946
This Mytrip deal was found by Cheapflights users on 5/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/204:00 pm
ORD
- AEP
2 stops29h 30m
Multiple Airlines
Sun 11/224:30 pm
AEP
- ORD
2 stops30h 50m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,047
This Arajet deal was found by Cheapflights users on 6/1. 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 Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:27 am
ORD
- EZE
1 stop14h 18m
Arajet
Wed 3/39:15 pm
EZE
- ORD
1 stop28h 25m
Arajet
Deal found 6/1![Arajet logo]()
$879
This Delta deal was found by Cheapflights users on 6/2. 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.
Wed 9/26:25 pm
ORD
- AEP
2 stops19h 35m
Delta
Tue 9/158:05 pm
AEP
- ORD
2 stops20h 27m
Delta
Deal found 6/2![Delta logo]()
$1,093
This LATAM Airlines deal was found by Cheapflights users on 6/2. 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.
Mon 8/246:25 pm
ORD
- AEP
2 stops19h 35m
LATAM Airlines
Wed 8/263:45 pm
AEP
- ORD
2 stops24h 24m
LATAM Airlines
Deal found 6/2![LATAM Airlines logo]()
$1,104
This Mytrip deal was found by Cheapflights users on 6/2. 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.
Thu 9/38:01 am
ORD
- AEP
2 stops18h 19m
Multiple Airlines
Wed 9/1611:55 am
AEP
- ORD
2 stops35h 25m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,049
This Delta deal was found by Cheapflights users on 5/28. 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.
Sat 6/136:10 pm
ORD
- EZE
1 stop13h 35m
Delta
Fri 6/268:10 pm
EZE
- ORD
1 stop22h 48m
Delta
Deal found 5/28![Delta logo]()
$1,095
This Copa Airlines deal was found by Cheapflights users on 5/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:35 am
ORD
- EZE
1 stop15h 18m
Copa Airlines
Fri 11/278:56 am
EZE
- ORD
1 stop30h 50m
Copa Airlines
Deal found 5/30![Copa Airlines logo]()
$1,092
This Delta deal was found by Cheapflights users on 6/1. 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.
Sun 9/206:25 pm
ORD
- EZE
1 stop13h 20m
Delta
Tue 10/138:10 pm
EZE
- ORD
1 stop15h 57m
Delta
Deal found 6/1![Delta logo]()
$1,104
This Copa Airlines deal was found by Cheapflights users on 5/31. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:13 pm
ORD
- EZE
1 stop31h 34m
Copa Airlines
Mon 12/72:34 pm
EZE
- ORD
1 stop25h 12m
Copa Airlines
Deal found 5/31![Copa Airlines logo]()
$1,092
This Delta deal was found by Cheapflights users on 5/31. 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.
Mon 7/136:22 pm
ORD
- AEP
2 stops19h 38m
Delta
Fri 7/243:45 pm
AEP
- ORD
2 stops20h 21m
Delta
Deal found 5/31![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 5/31. 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 8/169:54 am
ORD
- AEP
2 stops19h 46m
Delta
Fri 8/288:05 pm
AEP
- ORD
2 stops18h 35m
Delta
Deal found 5/31![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 5/31. 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 10/138:15 am
ORD
- AEP
2 stops21h 25m
Delta
Tue 10/208:05 pm
AEP
- ORD
2 stops18h 01m
Delta
Deal found 5/31![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 5/31. 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.
Mon 7/136:22 pm
ORD
- AEP
2 stops19h 38m
Delta
Thu 7/233:45 pm
AEP
- ORD
2 stops20h 25m
Delta
Deal found 5/31![Delta logo]()
$1,104
This Delta deal was found by Cheapflights users on 5/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:15 am
ORD
- AEP
2 stops20h 25m
Delta
Sun 11/85:05 pm
AEP
- ORD
2 stops20h 02m
Delta
Deal found 5/30![Delta logo]()
$1,166
Last-minute flights from O'Hare Intl to Buenos AiresDiscover last-minute flight deals from O'Hare Intl to Buenos Aires. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Buenos Aires. Data last updated June 3, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 6/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1312:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Fri 6/269:15 pm
EZE
- ORD
1 stop15h 57m
Arajet
Deal found 6/2![Arajet logo]()
$834
This Kiwi.com deal was found by Cheapflights users on 5/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1312:12 pm
ORD
- EZE
1 stop13h 58m
Multiple Airlines
Thu 6/1812:15 pm
EZE
- ORD
2 stops32h 27m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$914
This SmartFares deal was found by Cheapflights users on 5/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:35 am
ORD
- AEP
2 stops23h 05m
LATAM Airlines
Tue 6/162:55 pm
AEP
- ORD
2 stops21h 18m
LATAM Airlines
Deal found 5/30![LATAM Airlines logo]()
$950
This Copa Airlines deal was found by Cheapflights users on 6/2. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:02 am
ORD
- EZE
1 stop21h 49m
Copa Airlines
Mon 7/63:48 am
EZE
- ORD
1 stop26h 12m
Copa Airlines
Deal found 6/2![Copa Airlines logo]()
$946
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Thu 7/3011:00 am
EZE
- ORD
1 stop14h 40m
Arajet
Deal found 5/31![Arajet logo]()
$868
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:30 am
ORD
- EZE
1 stop13h 45m
Arajet
Thu 9/39:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 5/31![Arajet logo]()
$822
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:30 am
ORD
- EZE
1 stop13h 45m
Multiple Airlines
Mon 8/3112:15 pm
EZE
- ORD
2 stops35h 05m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:30 am
ORD
- EZE
1 stop13h 45m
Multiple Airlines
Tue 9/112:15 pm
EZE
- ORD
2 stops23h 08m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 5/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:30 am
ORD
- EZE
1 stop13h 45m
Multiple Airlines
Mon 7/137:21 pm
EZE
- ORD
2 stops23h 45m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$897
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:45 am
ORD
- EZE
1 stop24h 31m
Arajet
Sun 8/308:40 am
EZE
- ORD
1 stop15h 30m
Arajet
Deal found 5/31![Arajet logo]()
$904
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Mon 7/134:30 am
ORD
- EZE
1 stop13h 45m
Multiple Airlines
Sun 7/2612:15 pm
EZE
- ORD
2 stops23h 55m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$925
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Mon 7/134:30 am
ORD
- EZE
1 stop13h 45m
Multiple Airlines
Mon 7/2712:15 pm
EZE
- ORD
2 stops27h 42m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$929
One-way flights from O'Hare Intl to Buenos AiresSearch for one-way flight options from O'Hare Intl to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
Search for one-way flight options from O'Hare Intl to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
This eDestinos deal was found by Cheapflights users on 5/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Deal found 5/30![Arajet logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:30 pm
ORD
- EZE
3 stops35h 35m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 5/29. 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.
Sat 6/209:48 pm
ORD
- AEP
3 stops52h 32m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$329
This eDestinos deal was found by Cheapflights users on 6/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:30 am
ORD
- EZE
1 stop24h 45m
Arajet
Deal found 6/2![Arajet logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:49 pm
ORD
- EZE
3 stops28h 26m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/61:40 am
ORD
- EZE
3 stops23h 20m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 5/29. 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.
Thu 6/181:40 am
ORD
- EZE
3 stops29h 36m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 5/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:35 am
ORD
- EZE
3 stops47h 41m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:35 am
ORD
- EZE
3 stops44h 05m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$388
This Booking.com deal was found by Cheapflights users on 6/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 am
ORD
- EZE
1 stop34h 55m
Arajet
Deal found 6/1![Arajet logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 5/29. 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.
Thu 6/119:48 pm
ORD
- AEP
3 stops52h 32m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:35 am
ORD
- AEP
3 stops44h 05m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$409
Find flight deals from O'Hare Intl to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 June 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $784 (Booking.com) |
One-way from | $311 (eDestinos) |
Popular in | April |
Cheapest in | August |
Average price | $1,144 |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 June 3, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sat 8/22
12:12 pm-4:10 am
1 stop13h 58m
Buenos Aires Ministro Pistarini
Thu 9/3
9:45 am-11:40 pm
1 stop15h 55m
$823
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sun 11/15
3:20 am-8:15 pm
1 stop13h 55m
Buenos Aires Ministro Pistarini
Wed 3/3
9:15 pm-10:40 pm
1 stop28h 25m
$849
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Fri 11/13
5:45 am-7:40 pm
1 stop34h 55m
Buenos Aires Ministro Pistarini
Wed 3/3
9:15 pm-10:40 pm
1 stop28h 25m
$869
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sat 11/14
10:27 am-3:45 am
1 stop14h 18m
Buenos Aires Ministro Pistarini
Wed 3/3
9:15 pm-10:40 pm
1 stop28h 25m
$879
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Wed 9/9
8:01 am-7:57 am
1 stop21h 56m
Buenos Aires Ministro Pistarini
Wed 9/16
5:25 am-1:02 am
1 stop21h 37m
$946
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Mon 8/10
3:21 pm-12:51 am
1 stop31h 30m
Buenos Aires Ministro Pistarini
Mon 8/17
8:59 am-1:59 pm
1 stop31h 00m
$946
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Mon 6/29
3:21 pm-7:51 am
1 stop14h 30m
Buenos Aires Ministro Pistarini
Mon 7/6
2:49 pm-1:57 pm
1 stop25h 08m
$946
ChicagoBuenos Aires
ORD - AEP
ORDAEP
Chicago O'Hare Intl
Sat 8/22
12:12 pm-8:30 am
2 stops18h 18m
Buenos Aires Jorge Newbery
Mon 8/24
5:35 pm-11:47 pm
2 stops32h 12m
$1,028
ChicagoBuenos Aires
ORD - AEP
ORDAEP
Chicago O'Hare Intl
Fri 11/20
4:00 pm-12:30 am
2 stops29h 30m
Buenos Aires Jorge Newbery
Sun 11/22
4:30 pm-8:20 pm
2 stops30h 50m
$1,047
ChicagoBuenos Aires
ORD - AEP
ORDAEP
Chicago O'Hare Intl
Thu 9/3
8:01 am-4:20 am
2 stops18h 19m
Buenos Aires Jorge Newbery
Wed 9/16
11:55 am-9:20 pm
2 stops35h 25m
$1,049
Showing 1-10 of 43 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl 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 O'Hare Intl to Buenos Aires in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Buenos Aires flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 O'Hare Intl to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from O'Hare Intl with our price prediction graph.
ORD-BUE
ORD-EZE
ORD-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 Chicago O'Hare Intl Airport to Buenos Aires
ORD-BUE
ORD-EZE
ORD-AEP
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Buenos Aires?
Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buenos Aires (average of $134). Flying from Chicago O'Hare Intl Airport to Buenos Aires in June is currently the most expensive (average of $919). 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 O'Hare Intl Airport to Buenos Aires?
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Buenos Aires?
The best time to book flights from Chicago O'Hare Intl Airport to Buenos Aires is 47 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.
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 June 3, 2026.
Read reviews from past customers who have flown Copa Airlines,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.4
Boarding
7.7
Entertainment
6.8
Overall
7.5
Food
6.9
Crew
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
LIM - PTY
Comfort
7.4
Boarding
7.7
Entertainment
6.8
Overall
7.5
Food
6.9
Crew
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
LIM - PTY
Comfort
7.4
Boarding
7.7
Entertainment
6.8
Overall
7.5
Food
6.9
Crew
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
LIM - PTY
Comfort
7.4
Boarding
7.7
Entertainment
6.8
Overall
7.5
Food
6.9
Crew
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
LIM - PTY
Comfort
7.4
Boarding
7.7
Entertainment
6.8
Overall
7.5
Food
6.9
Crew
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
LIM - PTY
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Buenos Aires. 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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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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 June 3, 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 O'Hare Intl to Buenos Aires by cabin class
Find flights from O'Hare Intl to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
O'Hare Intl and Buenos Aires flights
Browse other O'Hare Intl and Buenos Aires flight options. Last updated on June 3, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on June 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from O'Hare Intl to Buenos Aires
Discover the top 7 airlines that operate flights from O'Hare Intl 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 June 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$360 | Average$884 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$569 | Average$985 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$727 | Average$918 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$795 | Average$999 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$901 | Average$1,496 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$951 | Average$1,155 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$972 | Average$1,286 | FlexibilityNo cancel fee | On-time71% |