$207+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUE
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to Buenos Aires with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 O'Hare Intl to Buenos Aires
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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 July 30, 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 July 30, 2026.
This eDestinos deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/75:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Thu 9/249:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 7/26![Arajet logo]()
$449
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/75:30 am
ORD
- EZE
2 stops37h 40m
Multiple Airlines
Thu 9/249:45 am
EZE
- ORD
1 stop15h 55m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$596
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/75:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Sat 9/192:45 am
EZE
- ORD
1 stop21h 25m
Arajet
Deal found 7/25![Arajet logo]()
$602
This Booking.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/145:30 am
ORD
- EZE
1 stop24h 45m
Arajet
Thu 9/249:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 7/26![Arajet logo]()
$608
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Mon 9/75:30 am
ORD
- AEP
2 stops26h 01m
Multiple Airlines
Thu 9/2412:50 pm
AEP
- ORD
2 stops34h 30m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$690
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Mon 9/75:30 am
ORD
- AEP
2 stops26h 01m
Multiple Airlines
Thu 9/1710:10 pm
AEP
- ORD
2 stops25h 10m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$708
This Mytrip deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/75:30 am
ORD
- AEP
2 stops26h 01m
Multiple Airlines
Sun 9/205:35 pm
AEP
- ORD
2 stops32h 12m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$823
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 July 30, 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 July 30, 2026.
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:30 am
ORD
- EZE
1 stop23h 30m
United Airlines
Wed 9/29:00 pm
EZE
- ORD
1 stop15h 15m
United Airlines
Deal found 7/29![United Airlines logo]()
$935
This Copa Airlines deal was found by Cheapflights users on 7/29. 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 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 stop14h 12m
Copa Airlines
Tue 11/242:02 am
EZE
- ORD
1 stop25h 09m
Copa Airlines
Deal found 7/29![Copa Airlines logo]()
$950
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:50 pm
ORD
- EZE
1 stop17h 55m
Delta
Sun 8/168:10 pm
EZE
- ORD
1 stop14h 34m
Delta
Deal found 7/29![Delta logo]()
$958
This Arajet deal was found by Cheapflights users on 7/29. 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.
Fri 11/65:45 am
ORD
- EZE
1 stop22h 00m
Arajet
Sat 11/149:15 pm
EZE
- ORD
1 stop27h 05m
Arajet
Deal found 7/29![Arajet logo]()
$964
This Travelocity deal was found by Cheapflights users on 7/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 pm
ORD
- AEP
2 stops22h 30m
Multiple Airlines
Mon 10/127:00 am
AEP
- ORD
1 stop16h 20m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,282
This Copa Airlines deal was found by Cheapflights users on 7/29. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:20 pm
ORD
- EZE
1 stop29h 06m
Copa Airlines
Sun 10/1112:10 am
EZE
- ORD
1 stop15h 49m
Copa Airlines
Deal found 7/29![Copa Airlines logo]()
$973
This Copa Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 10/18:01 am
ORD
- EZE
1 stop14h 50m
Copa Airlines
Sat 10/102:17 am
EZE
- ORD
1 stop24h 40m
Copa Airlines
Deal found 7/30![Copa Airlines logo]()
$973
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 8/2711:23 am
ORD
- AEP
2 stops18h 17m
Delta
Thu 9/38:05 pm
AEP
- ORD
2 stops20h 04m
Delta
Deal found 7/30![Delta logo]()
$1,093
This Copa Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 9/133:20 pm
ORD
- EZE
1 stop31h 31m
Copa Airlines
Sun 9/208:59 am
EZE
- ORD
1 stop18h 03m
Copa Airlines
Deal found 7/30![Copa Airlines logo]()
$973
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 1/173:00 pm
ORD
- EZE
1 stop15h 40m
Delta
Mon 2/18:05 pm
EZE
- ORD
1 stop16h 19m
Delta
Deal found 7/25![Delta logo]()
$1,100
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 11/243:49 pm
ORD
- EZE
1 stop14h 51m
Delta
Tue 12/89:30 pm
EZE
- ORD
1 stop17h 50m
Delta
Deal found 7/26![Delta logo]()
$1,100
This Copa Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/318:02 am
ORD
- EZE
1 stop18h 34m
Copa Airlines
Tue 9/88:59 am
EZE
- ORD
1 stop31h 00m
Copa Airlines
Deal found 7/25![Copa Airlines logo]()
$1,088
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 12/83:49 pm
ORD
- AEP
2 stops21h 11m
Delta
Thu 12/245:35 pm
AEP
- ORD
2 stops20h 31m
Delta
Deal found 7/26![Delta logo]()
$1,100
This Copa Airlines deal was found by Cheapflights users on 7/28. 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 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 stop18h 35m
Copa Airlines
Sun 9/203:48 am
EZE
- ORD
1 stop23h 14m
Copa Airlines
Deal found 7/28![Copa Airlines logo]()
$1,088
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:32 am
ORD
- AEP
2 stops18h 08m
Delta
Wed 11/255:35 pm
AEP
- ORD
2 stops18h 47m
Delta
Deal found 7/29![Delta logo]()
$1,100
This Copa Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 12/12:13 pm
ORD
- EZE
1 stop29h 11m
Copa Airlines
Thu 12/108:58 am
EZE
- ORD
1 stop30h 48m
Copa Airlines
Deal found 7/25![Copa Airlines logo]()
$1,088
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:44 am
ORD
- AEP
2 stops18h 56m
Delta
Wed 9/303:45 pm
AEP
- ORD
2 stops18h 51m
Delta
Deal found 7/27![Delta logo]()
$1,100
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 11/2510:32 am
ORD
- AEP
2 stops18h 08m
Delta
Mon 11/305:35 pm
AEP
- ORD
2 stops18h 47m
Delta
Deal found 7/25![Delta logo]()
$1,164
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:05 pm
ORD
- AEP
2 stops19h 55m
Delta
Sun 11/155:35 pm
AEP
- ORD
2 stops19h 44m
Delta
Deal found 7/29![Delta logo]()
$1,164
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 11/65:27 am
ORD
- AEP
2 stops23h 13m
Delta
Sun 11/155:35 pm
AEP
- ORD
2 stops19h 44m
Delta
Deal found 7/25![Delta logo]()
$1,228
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:23 am
ORD
- AEP
2 stops18h 17m
Delta
Thu 9/108:05 pm
AEP
- ORD
2 stops18h 36m
Delta
Deal found 7/29![Delta logo]()
$1,284
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/411:23 am
ORD
- AEP
2 stops18h 17m
Delta
Fri 9/118:05 pm
AEP
- ORD
2 stops20h 24m
Delta
Deal found 7/28![Delta logo]()
$1,284
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:32 am
ORD
- AEP
2 stops18h 08m
Delta
Fri 11/275:35 pm
AEP
- ORD
2 stops19h 44m
Delta
Deal found 7/27![Delta logo]()
$1,284
Last-minute flights from O'Hare Intl to Buenos AiresDiscover last-minute flight deals from O'Hare Intl to Buenos Aires. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Buenos Aires. Data last updated July 30, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 7/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:44 am
ORD
- EZE
3 stops24h 16m
Multiple Airlines
Tue 9/15:00 am
EZE
- ORD
2 stops44h 47m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$819
This Mytrip deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/175:30 am
ORD
- AEP
2 stops27h 00m
Multiple Airlines
Tue 11/1012:50 pm
AEP
- ORD
2 stops34h 30m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$989
This Cheapflightsfares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:07 am
ORD
- AEP
2 stops26h 43m
LATAM Airlines
Mon 8/248:40 am
AEP
- ORD
2 stops31h 29m
LATAM Airlines
Deal found 7/27![LATAM Airlines logo]()
$992
This Arajet deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arajet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Thu 9/39:45 am
EZE
- ORD
1 stop15h 55m
Arajet
Deal found 7/27![Arajet logo]()
$721
This LATAM Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:23 am
ORD
- EZE
2 stops27h 37m
LATAM Airlines
Wed 8/268:40 am
EZE
- ORD
2 stops30h 00m
LATAM Airlines
Deal found 7/27![LATAM Airlines logo]()
$750
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 am
ORD
- EZE
1 stop16h 35m
Multiple Airlines
Fri 8/284:45 am
EZE
- ORD
2 stops20h 42m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$770
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 am
ORD
- EZE
1 stop24h 45m
Arajet
Fri 8/284:00 am
EZE
- ORD
1 stop33h 12m
Arajet
Deal found 7/27![Arajet logo]()
$800
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:25 pm
ORD
- EZE
2 stops41h 20m
Multiple Airlines
Thu 9/39:45 am
EZE
- ORD
1 stop15h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$833
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sat 8/2912:12 pm
ORD
- AEP
3 stops29h 28m
Multiple Airlines
Sat 9/53:45 pm
AEP
- ORD
3 stops34h 02m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,010
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 am
ORD
- EZE
1 stop16h 35m
Arajet
Fri 9/49:15 pm
EZE
- ORD
1 stop15h 57m
Arajet
Deal found 7/25![Arajet logo]()
$692
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 am
ORD
- EZE
1 stop16h 35m
Multiple Airlines
Fri 9/44:45 am
EZE
- ORD
2 stops20h 42m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$806
This Mytrip deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/315:30 am
ORD
- AEP
2 stops26h 10m
Multiple Airlines
Fri 9/411:55 am
AEP
- ORD
2 stops35h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$964
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 July 30, 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 July 30, 2026.
This Gotogate deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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.
Mon 9/75:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Deal found 7/26![Arajet logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/55:30 am
ORD
- AEP
2 stops37h 25m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/55:30 am
ORD
- EZE
2 stops36h 50m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$262
This eDestinos deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 7/26![Arajet logo]()
$267
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:12 pm
ORD
- EZE
1 stop13h 58m
Arajet
Deal found 7/27![Arajet logo]()
$293
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 am
ORD
- EZE
1 stop16h 35m
Arajet
Deal found 7/27![Arajet logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/2410:26 am
ORD
- EZE
3 stops38h 57m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$309
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:45 am
ORD
- EZE
1 stop22h 00m
Arajet
Deal found 7/28![Arajet logo]()
$315
This Booking.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 10/236:45 am
ORD
- EZE
1 stop22h 00m
Arajet
Deal found 7/26![Arajet logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am
ORD
- EZE
3 stops42h 23m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:30 am
ORD
- AEP
2 stops26h 01m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/243:50 pm
ORD
- AEP
3 stops41h 30m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$357
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 July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $449 (eDestinos) |
One-way from | $207 (Gotogate) |
Popular in | April |
Cheapest in | August |
Average price | $1,061 |
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 July 30, 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
Sun 8/30
6:30 am-8:00 am
1 stop23h 30m
Buenos Aires Ministro Pistarini
Wed 9/2
9:00 pm-10:15 am
1 stop15h 15m
$935
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Wed 11/18
7:35 am-12:47 am
1 stop14h 12m
Buenos Aires Ministro Pistarini
Tue 11/24
2:02 am-12:11 am
1 stop25h 09m
$950
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Fri 8/14
1:50 pm-9:45 am
1 stop17h 55m
Buenos Aires Ministro Pistarini
Sun 8/16
8:10 pm-8:44 am
1 stop14h 34m
$958
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Fri 11/6
5:45 am-6:45 am
1 stop22h 00m
Buenos Aires Ministro Pistarini
Sat 11/14
9:15 pm-9:20 pm
1 stop27h 05m
$964
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sun 10/4
3:20 pm-10:26 pm
1 stop29h 06m
Buenos Aires Ministro Pistarini
Sun 10/11
12:10 am-1:59 pm
1 stop15h 49m
$973
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Thu 10/1
8:01 am-12:51 am
1 stop14h 50m
Buenos Aires Ministro Pistarini
Sat 10/10
2:17 am-12:57 am
1 stop24h 40m
$973
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Sun 9/13
3:20 pm-12:51 am
1 stop31h 31m
Buenos Aires Ministro Pistarini
Sun 9/20
8:59 am-1:02 am
1 stop18h 03m
$973
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Mon 8/31
8:02 am-4:36 am
1 stop18h 34m
Buenos Aires Ministro Pistarini
Tue 9/8
8:59 am-1:59 pm
1 stop31h 00m
$1,088
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Wed 9/9
8:01 am-4:36 am
1 stop18h 35m
Buenos Aires Ministro Pistarini
Sun 9/20
3:48 am-1:02 am
1 stop23h 14m
$1,088
ChicagoBuenos Aires
ORD - EZE
ORDEZE
Chicago O'Hare Intl
Tue 12/1
2:13 pm-10:24 pm
1 stop29h 11m
Buenos Aires Ministro Pistarini
Thu 12/10
8:58 am-12:46 pm
1 stop30h 48m
$1,088
Showing 1-10 of 42 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 July.
| 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buenos Aires (average of $948). Flying from Chicago O'Hare Intl Airport to Buenos Aires in July is currently the most expensive (average of $1,477). 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?
Airfare is below average for this route at the moment.
Chicago O'Hare Intl Airport to Buenos Aires flights typically cost between $846 and $1,133 in September.The cheapest round-trip price found within the last 5 days was $449 on Arajet (Sep 7-Sep 24).
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 45 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 July 30, 2026.
Read reviews from past customers who have flown Delta,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.
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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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 July 30, 2026.
Complete your trip
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Search flights from O'Hare Intl to Buenos Aires by cabin class
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O'Hare Intl and Buenos Aires flights
Browse other O'Hare Intl and Buenos Aires flight options. Last updated on July 30, 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 July 30, 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$360 | Average$901 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$727 | Average$918 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$768 | Average$1,022 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$792 | Average$990 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$901 | Average$1,496 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$951 | Average$1,158 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$972 | Average$1,285 | FlexibilityNo cancel fee | On-time71% |