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Cheap flights from Chicago (CHI) to Buenos Aires (AEP)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)

How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)
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Cheap flights from Chicago to Buenos Aires in August , September 2026

31 Aug - 25 Sep $ 881.00
CHI
Chicago
Copa Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Copa Airlines
2 STOPS
CHI
Chicago
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18 Aug - 02 Sep $ 1,304.00
CHI
Chicago
LATAM Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
CHI
Chicago
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24 Aug - 07 Sep $ 1,920.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Buenos Aires

30 Aug - 01 Sep $ 936.00
CHI
Chicago
Frontier Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
CHI
Chicago
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18 Aug - 01 Sep $ 1,450.00
CHI
Chicago
LATAM Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
CHI
Chicago
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24 Aug - 31 Aug $ 2,059.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
1 STOPS
CHI
Chicago
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One-way flights to Buenos Aires from Chicago

10:54 AM - 1:15 AM
LATAM Airlines
2 Stops
18h 46m
CHI - AEP
$ 474
Kiwi
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8:05 AM - 1:15 AM
LATAM Airlines
2 Stops
21h 35m
CHI - AEP
$ 613
Kiwi
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10:32 AM - 9:15 PM
Avianca
2 Stops
17h 8m
CHI - AEP
$ 945
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)
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How to find the cheapest flight from Chicago (CHI) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.