Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 16 days agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
10% of dates checked are available within 10% of the lowest price
Monday, December 28th, 2026
3 round-trip options
Returning
Wed, Jan 6, 2027•9 Day Trip
$1,033 USD
Returning
Sat, Jan 9, 2027•12 Day Trip
$976 USD
Returning
Mon, Jan 11, 2027•14 Day Trip
$959 USD