Chicago (ORD) to Bilbao (BIO) flight deal in economy from $587
$907 USD
-35%$587 USD
Verified about 3 hours agoOctober 2026
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Fair Availability
23% of dates checked are available within 10% of the lowest price
Friday, October 16th, 2026
10 round-trip options
Returning
Wed, Oct 21, 2026•5 Day Trip
$647 USD
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Thu, Oct 22, 2026•6 Day Trip
$637 USD
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Fri, Oct 23, 2026•7 Day Trip
$637 USD
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Sat, Oct 24, 2026•8 Day Trip
$928 USD
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Sun, Oct 25, 2026•9 Day Trip
$1,103 USD
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Mon, Oct 26, 2026•10 Day Trip
$998 USD
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Tue, Oct 27, 2026•11 Day Trip
$867 USD
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Wed, Oct 28, 2026•12 Day Trip
$794 USD
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Thu, Oct 29, 2026•13 Day Trip
$727 USD
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Fri, Oct 30, 2026•14 Day Trip
$804 USD