Chicago (ORD) to Bilbao (BIO) flight deal in economy from $727
$980 USD
-26%$727 USD
Verified about 7 hours agoAugust 2026
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Good Availability
42% of dates checked are available within 10% of the lowest price
Friday, August 7th, 2026
10 round-trip options
Returning
Wed, Aug 12, 2026•5 Day Trip
$1,229 USD
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Thu, Aug 13, 2026•6 Day Trip
$1,317 USD
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Fri, Aug 14, 2026•7 Day Trip
$1,336 USD
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Sat, Aug 15, 2026•8 Day Trip
$1,504 USD
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Sun, Aug 16, 2026•9 Day Trip
$1,621 USD
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Mon, Aug 17, 2026•10 Day Trip
$1,328 USD
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Tue, Aug 18, 2026•11 Day Trip
$1,167 USD
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Wed, Aug 19, 2026•12 Day Trip
$1,199 USD
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Thu, Aug 20, 2026•13 Day Trip
$1,095 USD
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Fri, Aug 21, 2026•14 Day Trip
$1,066 USD