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Cheap flights from Chicago (CHI) to Bilbao (BIO)

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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)

How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)
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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)
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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)
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Cheap flights from Chicago to Bilbao in September , October 2026

28 Sep - 05 Oct $ 924.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
BIO
Bilbao
BIO
Bilbao
Swiss International Air Lines
1 STOPS
CHI
Chicago
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28 Sep - 08 Oct $ 1,413.00
CHI
Chicago
Turkish Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
Turkish Airlines
1 STOPS
CHI
Chicago
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28 Sep - 08 Oct $ 1,534.00
CHI
Chicago
Iberia Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
Iberia Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Bilbao

28 Sep - 30 Sep $ 1,038.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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28 Sep - 30 Sep $ 1,038.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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28 Sep - 30 Sep $ 2,534.00
CHI
Chicago
Iberia Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
Iberia Airlines
1 STOPS
CHI
Chicago
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One-way flights to Bilbao from Chicago

9:00 PM - 2:20 PM
Aer Lingus
1 Stops
13h 25m
CHI - BIO
$ 488
Kiwi
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3:45 PM - 2:20 PM
Aer Lingus
1 Stops
18h 40m
CHI - BIO
$ 490
Kiwi
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9:00 PM - 2:20 PM
Aer Lingus
1 Stops
13h 30m
CHI - BIO
$ 927
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)

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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)
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 Bilbao (BIO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.