Chicago (ORD) to Bilbao (BIO) flight deal in economy from $727
$980 USD
-26%$727 USD
Verified about 7 hours agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Good Availability
42% of dates checked are available within 10% of the lowest price
Monday, October 26th, 2026
10 round-trip options
Returning
Sat, Oct 31, 2026•5 Day Trip
$752 USD
Returning
Sun, Nov 1, 2026•6 Day Trip
$1,007 USD
Returning
Mon, Nov 2, 2026•7 Day Trip
$777 USD
Returning
Tue, Nov 3, 2026•8 Day Trip
$766 USD
Returning
Wed, Nov 4, 2026•9 Day Trip
$766 USD
Returning
Thu, Nov 5, 2026•10 Day Trip
$747 USD
Returning
Fri, Nov 6, 2026•11 Day Trip
$736 USD
Returning
Sat, Nov 7, 2026•12 Day Trip
$752 USD
Returning
Sun, Nov 8, 2026•13 Day Trip
$752 USD
Returning
Mon, Nov 9, 2026•14 Day Trip
$747 USD