Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 15 days agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
10% of dates checked are available within 10% of the lowest price
Saturday, October 31st, 2026
3 round-trip options
Returning
Fri, Nov 6, 2026•6 Day Trip
$643 USD
Returning
Sun, Nov 8, 2026•8 Day Trip
$564 USD
Returning
Tue, Nov 10, 2026•10 Day Trip
$547 USD