Chicago (ORD) to Bilbao (BIO) flight deal in economy from $735
$969 USD
-24%$735 USD
Verified 1 day agoNovember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
29% of dates checked are available within 10% of the lowest price
Monday, November 30th, 2026
2 round-trip options
Returning
Sat, Dec 5, 2026•5 Day Trip
$790 USD
Returning
Thu, Dec 10, 2026•10 Day Trip
$750 USD