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

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1 Adults (11+)
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 September , October 2026

29 Sep - 11 Oct $ 1,142.00
CHI
Chicago
Arajet
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Arajet
2 STOPS
CHI
Chicago
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29 Sep - 08 Oct $ 1,431.00
CHI
Chicago
LATAM Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
CHI
Chicago
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29 Sep - 05 Oct $ 1,567.00
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

29 Sep - 01 Oct $ 1,205.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
2 STOPS
CHI
Chicago
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28 Sep - 30 Sep $ 1,575.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
1 STOPS
CHI
Chicago
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27 Sep - 30 Sep $ 1,755.00
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

10:48 AM - 1:15 AM
LATAM Airlines
2 Stops
18h 52m
CHI - AEP
$ 574
Kiwi
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8:05 AM - 2:05 AM
LATAM Airlines
2 Stops
22h 25m
CHI - AEP
$ 578
Kiwi
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10:38 AM - 9:15 PM
Avianca
2 Stops
17h 2m
CHI - AEP
$ 1,169
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)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
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.