Chicago (ORD) to Bilbao (BIO) flight deal in economy from $735
$969 USD
-24%$735 USD
Verified 1 day agoJuly 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
29% of dates checked are available within 10% of the lowest price
Thursday, July 30th, 2026
3 round-trip options
Returning
Tue, Aug 4, 2026•5 Day Trip
$1,094 USD
Returning
Wed, Aug 5, 2026•6 Day Trip
$1,094 USD
Returning
Thu, Aug 6, 2026•7 Day Trip
$1,094 USD