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

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0 Children (2~11)
0 Infants (0~2)
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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 August , September 2026

25 Aug - 08 Sep $ 922.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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23 Aug - 10 Sep $ 1,318.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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23 Aug - 10 Sep $ 1,325.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Bilbao

25 Aug - 01 Sep $ 943.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
BIO
Bilbao
BIO
Bilbao
Swiss International Air Lines
1 STOPS
CHI
Chicago
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25 Aug - 31 Aug $ 1,015.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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25 Aug - 31 Aug $ 1,032.00
CHI
Chicago
KLM Royal Dutch Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
KLM Royal Dutch Airlines
1 STOPS
CHI
Chicago
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One-way flights to Bilbao from Chicago

7:25 PM - 4:40 PM
Norwegian Air Sweden
2 Stops
17h 5m
CHI - BIO
$ 568
Kiwi
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9:00 PM - 2:20 PM
Aer Lingus
1 Stops
13h 25m
CHI - BIO
$ 641
Kiwi
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3:55 PM - 9:15 PM
United Airlines
1 Stops
11h 50m
CHI - BIO
$ 700
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.