Bilbao (BIO) to Chicago (ORD) flight deal from $454 USD in economy class

AAAmerican Airlines

AYFinnair

Bilbao Airport

Bilbao, Spain

ORD

O'Hare International Airport

Chicago, United States

$933 USD

-51%$454 USD

Verified Nov 4, 2025 at 11:38 AM

November 2025

Today

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27 28 29 30 31 1 2 3 4$1,162 5$1,141 6$1,132 7$1,150 8$1,150 9$1,150 10$1,170 11$936 12$763 13$861 14$879 15$1,006 16$1,574 17$1,206 18$1,032 19$545 20$537 21$1,205 22$594 23$562 24$511 25$768 26$545 27$586 28$966 29$1,613 30$1,390

Limited Availability

19% of dates checked are available within 10% of the lowest price

Wednesday, November 26th, 2025

7 round-trip options

Returning

Mon, Dec 1, 2025•5 Day Trip

$545 USD

Google Flights

Returning

Tue, Dec 2, 2025•6 Day Trip

$545 USD

Google Flights

Returning

Wed, Dec 3, 2025•7 Day Trip

$545 USD

Google Flights

Returning

Thu, Dec 4, 2025•8 Day Trip

$689 USD

Google Flights

Returning

Fri, Dec 5, 2025•9 Day Trip

$562 USD

Google Flights

Returning

Sun, Dec 7, 2025•11 Day Trip

$562 USD

Google Flights

Returning

Wed, Dec 10, 2025•14 Day Trip

$576 USD

Google Flights