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
Wednesday, August 12th, 2026
7 round-trip options
Returning
Mon, Aug 17, 2026•5 Day Trip
$911 USD
Returning
Tue, Aug 18, 2026•6 Day Trip
$913 USD
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Wed, Aug 19, 2026•7 Day Trip
$901 USD
Returning
Thu, Aug 20, 2026•8 Day Trip
$953 USD
Returning
Fri, Aug 21, 2026•9 Day Trip
$919 USD
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Tue, Aug 25, 2026•13 Day Trip
$953 USD
Returning
Wed, Aug 26, 2026•14 Day Trip
$770 USD