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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 May , June 2026

27 May - 03 Jun $ 1,084.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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25 May - 10 Jun $ 1,525.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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22 May - 06 Jun $ 2,750.00
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

24 May - 31 May $ 1,129.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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24 May - 31 May $ 1,130.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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22 May - 02 Jun $ 3,208.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
2 STOPS
CHI
Chicago
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One-way flights to Bilbao from Chicago

8:50 AM - 7:15 AM
Norwegian Air Shuttle
3 Stops
42h 40m
CHI - BIO
$ 414
Kiwi
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9:00 PM - 2:20 PM
Aer Lingus
1 Stops
13h 25m
CHI - BIO
$ 869
Kiwi
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10:30 PM - 10:10 PM
Finnair
1 Stops
17h 45m
CHI - BIO
$ 950
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.