Bilbao (BIO) to Chicago (ORD) flight deal in economy from $499
$955 USD
-48%$499 USD
Verified about 10 hours agoSeptember 2026
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Rare Availability
7% of dates checked are available within 10% of the lowest price
Friday, September 4th, 2026
10 round-trip options
Returning
Wed, Sep 9, 2026•5 Day Trip
$698 USD
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Thu, Sep 10, 2026•6 Day Trip
$535 USD
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Fri, Sep 11, 2026•7 Day Trip
$628 USD
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Sat, Sep 12, 2026•8 Day Trip
$751 USD
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Sun, Sep 13, 2026•9 Day Trip
$767 USD
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Mon, Sep 14, 2026•10 Day Trip
$535 USD
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Tue, Sep 15, 2026•11 Day Trip
$535 USD
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Wed, Sep 16, 2026•12 Day Trip
$734 USD
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Thu, Sep 17, 2026•13 Day Trip
$611 USD
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Fri, Sep 18, 2026•14 Day Trip
$1,024 USD