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

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0 Children (2~11)
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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 March , April 2026

09 Mar - 28 Apr $ 692.00
CHI
Chicago
Finnair
2 STOPS
BIO
Bilbao
BIO
Bilbao
Finnair
1 STOPS
CHI
Chicago
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08 Mar - 08 Apr $ 982.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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07 Mar - 09 Apr $ 2,620.00
CHI
Chicago
KLM Royal Dutch Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
KLM Royal Dutch Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Bilbao

22 Mar - 01 Apr $ 618.00
CHI
Chicago
TAP Portugal
2 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
2 STOPS
CHI
Chicago
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08 Mar - 01 Apr $ 982.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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05 Mar - 31 Mar $ 2,561.00
CHI
Chicago
Lufthansa
1 STOPS
BIO
Bilbao
BIO
Bilbao
Lufthansa
1 STOPS
CHI
Chicago
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One-way flights to Bilbao from Chicago

12:05 PM - 9:20 AM
Vueling
2 Stops
18h 15m
CHI - BIO
$ 302
Kiwi
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9:25 PM - 4:00 PM
TAP Portugal
1 Stops
15h 10m
CHI - BIO
$ 451
Kiwi
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11:50 AM - 8:40 AM
Turkish Airlines
1 Stops
16h 10m
CHI - BIO
$ 529
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Bilbao (BIO)

Related info for your journey
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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.