Flights from Chicago (CHI) to Buenos Aires (BUE) with Star Alliance

Start your journey with just one click

Airline

1/29

Chicago

toBuenos Aires

ORD-EZE

June 1, 2025

August 1, 2025

Sold byAvianca

From

1,551USD Price subject to changes

Viewed:6 hours ago

Roundtrip

Economy

2/29

Chicago

toBuenos Aires

ORD-EZE

March 1, 2025

March 14, 2025

Sold byCopa Airlines

From

1,303USD Price subject to changes

Viewed:34 minutes ago

Roundtrip

Economy

3/29

Chicago

toBuenos Aires

ORD-EZE

March 18, 2025

April 1, 2025

Sold byUnited Airlines

From

1,025USD Price subject to changes

Viewed:2 hours ago

Roundtrip

Economy

4/29

Chicago

toBuenos Aires

ORD-EZE

March 17, 2025

March 24, 2025

Sold byUnited Airlines

From

1,025USD Price subject to changes

Viewed:2 hours ago

Roundtrip

Economy

*Prices have been offered for round trips within the last 48 hours and might not be currently available. Not all Star Alliance Member Airlines or all fares/options are shown. Additional baggage fees, payment fees and fees for other optional services may apply. When booking, please check for restrictions on refunds, rebooking and baggage allowance that may apply. Prices may vary depending on the route and flights selected. Routings may include stopovers. Terms and conditions apply.

Weather in Buenos Aires

Saturday

broken clouds

18/01/2025

27°C

18/01/2025

broken clouds

Sunday

moderate rain

19/01/2025

24°C

19/01/2025

moderate rain

Monday

light rain

20/01/2025

24°C

20/01/2025

light rain

Tuesday

scattered clouds

21/01/2025

24°C

21/01/2025

scattered clouds

Wednesday

overcast clouds

22/01/2025

26°C

22/01/2025

overcast clouds

Thursday

sky is clear

23/01/2025

26°C

23/01/2025

sky is clear

Friday

moderate rain

24/01/2025

31°C

24/01/2025

moderate rain

Flight schedules from Chicago to Buenos Aires with Star Alliance member carriers

Please note that the flight schedules of our member carriers are subject to change on short notice. We recommend using our member airlines information page. for the latest flight updates, details on booking flexibility, as well as specific Frequent Flyer Program information.

Outbound (7)

Sort by

Chicago US
ORD14:02
14h 18m
1 Stop
Buenos Aires AR
EZE07:20
+1 day/s
Chicago - Buenos Aires
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Chicago. US
  ORD 14:02
  3h 2m
  930 Miles
  Houston. US
  IAH 17:04
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 831
  Houston. US
  IAH 18:30
  9h 50m
  5106 Miles
  Buenos Aires. AR
  EZE 07:20
  Boeing 777 Passenger
  Operated by United Airlines
Chicago US
ORD15:40
14h 40m
1 Stop
Buenos Aires AR
EZE09:20
+1 day/s
Chicago - Buenos Aires
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2678
  Chicago. US
  ORD 15:40
  3h 3m
  930 Miles
  Houston. US
  IAH 18:43
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 819
  Houston. US
  IAH 20:30
  9h 50m
  5106 Miles
  Buenos Aires. AR
  EZE 09:20
  Boeing 777 Passenger
  Operated by United Airlines
Chicago US
ORD06:56
14h 52m
1 Stop
Buenos Aires AR
EZE00:48
+1 day/s
Chicago - Buenos Aires
Copa Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Copa Airlines CM 236
  Chicago. US
  ORD 06:56
  5h 26m
  2345 Miles
  Panama City. PA
  PTY 13:22
  Boeing 737-800 Passenger
  Operated by Copa Airlines
2. Flight 2Copa Airlines CM 167
  Panama City. PA
  PTY 15:34
  7h 14m
  3343 Miles
  Buenos Aires. AR
  EZE 00:48
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by Copa Airlines
Chicago US
ORD06:56
15h 13m
1 Stop
Buenos Aires AR
EZE01:09
+1 day/s
Chicago - Buenos Aires
Copa Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Copa Airlines CM 236
  Chicago. US
  ORD 06:56
  5h 26m
  2345 Miles
  Panama City. PA
  PTY 13:22
  Boeing 737-800 Passenger
  Operated by Copa Airlines
2. Flight 2Copa Airlines CM 504
  Panama City. PA
  PTY 15:45
  7h 24m
  3343 Miles
  Buenos Aires. AR
  EZE 01:09
  Boeing 737-800 Passenger
  Operated by Copa Airlines
Chicago US
ORD12:45
15h 35m
1 Stop
Buenos Aires AR
EZE07:20
+1 day/s
Chicago - Buenos Aires
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2417
  Chicago. US
  ORD 12:45
  3h 2m
  930 Miles
  Houston. US
  IAH 15:47
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 831
  Houston. US
  IAH 18:30
  9h 50m
  5106 Miles
  Buenos Aires. AR
  EZE 07:20
  Boeing 777 Passenger
  Operated by United Airlines
Chicago US
ORD14:02
16h 18m
1 Stop
Buenos Aires AR
EZE09:20
+1 day/s
Chicago - Buenos Aires
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Chicago. US
  ORD 14:02
  3h 2m
  930 Miles
  Houston. US
  IAH 17:04
  Airbus A321neo
  Operated by United Airlines
2. Flight 2United Airlines UA 819
  Houston. US
  IAH 20:30
  9h 50m
  5106 Miles
  Buenos Aires. AR
  EZE 09:20
  Boeing 777 Passenger
  Operated by United Airlines
Chicago US
ORD18:28
17h 57m
2 Stops
Buenos Aires AR
EZE15:25
+1 day/s
Chicago - Buenos Aires
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 265
  Chicago. US
  ORD 18:28
  1h 57m
  437 Miles
  Toronto. CA
  YYZ 21:25
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 90
  Toronto. CA
  YYZ 22:50
  12h 55m
  5615 Miles
  Buenos Aires. AR
  EZE 15:25
  Boeing 787-9
  Operated by Air Canada

Start your journey with just one click

Chicago - Buenos Aires

Chicago - Buenos Aires

Chicago - Buenos Aires

Chicago - Buenos Aires

Chicago - Buenos Aires

Chicago - Buenos Aires

Chicago - Buenos Aires