Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 16 days agoAugust 2026
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Sunday, August 9th, 2026
7 round-trip options
Returning
Fri, Aug 14, 2026•5 Day Trip
$1,530 USD
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Sat, Aug 15, 2026•6 Day Trip
$1,136 USD
Returning
Sun, Aug 16, 2026•7 Day Trip
$1,136 USD
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Mon, Aug 17, 2026•8 Day Trip
$1,088 USD
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Tue, Aug 18, 2026•9 Day Trip
$1,119 USD
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Sat, Aug 22, 2026•13 Day Trip
$1,136 USD
Returning
Sun, Aug 23, 2026•14 Day Trip
$1,136 USD