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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 November , December 2025

27 Nov - 05 Dec $ 866.00
CHI
Chicago
Spirit Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Spirit Airlines
2 STOPS
CHI
Chicago
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27 Nov - 04 Dec $ 921.00
CHI
Chicago
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
CHI
Chicago
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27 Nov - 03 Dec $ 1,747.00
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

25 Nov - 01 Dec $ 1,158.00
CHI
Chicago
Avianca
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
2 STOPS
CHI
Chicago
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27 Nov - 01 Dec $ 1,161.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
2 STOPS
CHI
Chicago
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27 Nov - 01 Dec $ 1,179.00
CHI
Chicago
Avianca
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Avianca
2 STOPS
CHI
Chicago
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One-way flights to Buenos Aires from Chicago

2:07 PM - 10:05 AM
Flybondi
2 Stops
20h 23m
CHI - AEP
$ 427
Kiwi
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10:35 AM - 9:15 PM
Avianca
2 Stops
16h 5m
CHI - AEP
$ 689
Kiwi
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10:35 AM - 9:15 PM
Avianca
2 Stops
16h 5m
CHI - AEP
$ 751
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.