Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 15 days agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
10% of dates checked are available within 10% of the lowest price
Friday, August 14th, 2026
7 round-trip options
Returning
Wed, Aug 19, 2026•5 Day Trip
$1,010 USD
Returning
Thu, Aug 20, 2026•6 Day Trip
$1,010 USD
Returning
Fri, Aug 21, 2026•7 Day Trip
$1,027 USD
Returning
Sat, Aug 22, 2026•8 Day Trip
$1,067 USD
Returning
Sun, Aug 23, 2026•9 Day Trip
$1,067 USD
Returning
Thu, Aug 27, 2026•13 Day Trip
$1,176 USD
Returning
Fri, Aug 28, 2026•14 Day Trip
$1,479 USD