Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 16 days agoDecember 2026
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Thursday, December 17th, 2026
3 round-trip options
Returning
Sat, Dec 26, 2026•9 Day Trip
$1,227 USD
Returning
Tue, Dec 29, 2026•12 Day Trip
$1,119 USD
Returning
Thu, Dec 31, 2026•14 Day Trip
$1,044 USD