Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 15 days agoAugust 2026
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Thursday, August 13th, 2026
7 round-trip options
Returning
Tue, Aug 18, 2026•5 Day Trip
$1,147 USD
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Wed, Aug 19, 2026•6 Day Trip
$1,147 USD
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Thu, Aug 20, 2026•7 Day Trip
$1,147 USD
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Fri, Aug 21, 2026•8 Day Trip
$1,271 USD
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Sat, Aug 22, 2026•9 Day Trip
$1,280 USD
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Wed, Aug 26, 2026•13 Day Trip
$1,176 USD
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Thu, Aug 27, 2026•14 Day Trip
$1,525 USD