Chicago (ORD) to Bilbao (BIO) flight deal in economy from $735
$969 USD
-24%$735 USD
Verified 1 day agoJanuary 2027
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
29% of dates checked are available within 10% of the lowest price
Friday, January 15th, 2027
2 round-trip options
Returning
Mon, Jan 25, 2027•10 Day Trip
$926 USD
Returning
Tue, Jan 26, 2027•11 Day Trip
$1,235 USD