Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399

American AirlinesAAAmerican AirlinesFinnairAYFinnairBritish AirwaysBABritish AirwaysIberia AirlinesIBIberia Airlines
Round Trip•Economy
SpainBIO

Bilbao Airport

Bilbao, Spain
United StatesORD

O'Hare International Airport

Chicago, United States
$903 USD
-56%$399 USD
Verified 15 days ago
Limited Availability
10% of dates checked are available within 10% of the lowest price

Thursday, October 1st, 2026

3 round-trip options

Returning
Wed, Oct 7, 2026•6 Day Trip
$399 USD
Google Flights
Returning
Fri, Oct 9, 2026•8 Day Trip
$799 USD
Google Flights
Returning
Sun, Oct 11, 2026•10 Day Trip
$574 USD
Google Flights