Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 16 days agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
10% of dates checked are available within 10% of the lowest price
Tuesday, October 20th, 2026
3 round-trip options
Returning
Mon, Oct 26, 2026•6 Day Trip
$399 USD
Returning
Wed, Oct 28, 2026•8 Day Trip
$478 USD
Returning
Fri, Oct 30, 2026•10 Day Trip
$417 USD