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 16 days ago
Limited Availability
10% of dates checked are available within 10% of the lowest price

Wednesday, December 9th, 2026

3 round-trip options

Returning
Fri, Dec 18, 2026•9 Day Trip
$1,124 USD
Google Flights
Returning
Mon, Dec 21, 2026•12 Day Trip
$1,107 USD
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Returning
Wed, Dec 23, 2026•14 Day Trip
$1,107 USD
Google Flights