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

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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 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 October , November 2026

25 Oct - 11 Nov $ 753.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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23 Oct - 04 Nov $ 882.00
CHI
Chicago
TAP Portugal
1 STOPS
BIO
Bilbao
BIO
Bilbao
TAP Portugal
1 STOPS
CHI
Chicago
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19 Oct - 04 Nov $ 924.00
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

26 Oct - 31 Oct $ 1,123.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
2 STOPS
CHI
Chicago
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26 Oct - 31 Oct $ 1,134.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
2 STOPS
CHI
Chicago
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26 Oct - 31 Oct $ 1,209.00
CHI
Chicago
United Airlines
1 STOPS
BIO
Bilbao
BIO
Bilbao
United Airlines
1 STOPS
CHI
Chicago
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One-way flights to Bilbao from Chicago

9:10 PM - 4:00 PM
TAP Portugal
1 Stops
15h 25m
CHI - BIO
$ 473
Kiwi
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9:00 PM - 2:20 PM
Aer Lingus
1 Stops
13h 25m
CHI - BIO
$ 500
Kiwi
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7:05 PM - 11:55 AM
Swiss International Air Lines
1 Stops
11h 45m
CHI - BIO
$ 593
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.