BIO to ORD from $399 in economy

AAAmerican Airlines

AYFinnair

Bilbao Airport

Bilbao, Spain

ORD

O'Hare International Airport

Chicago, United States

$903 USD

-56%$399 USD

Verified 16 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5 6$1,353 7$1,364 8$1,353 9$1,353 10$1,370 11$1,204 12$1,948 13$927 14$781 15$770 16$770 17$867 18$798 19$787 20$850 21$696 22$696 23$696 24$713 25$798 26$1,365 27$987 28$781 29$719 30$850 31$936 1$878 2$936

Limited Availability

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

Wednesday, July 29th, 2026

7 round-trip options

Returning

Mon, Aug 3, 2026•5 Day Trip

$719 USD

Google Flights

Returning

Tue, Aug 4, 2026•6 Day Trip

$719 USD

Google Flights

Returning

Wed, Aug 5, 2026•7 Day Trip

$719 USD

Google Flights

Returning

Thu, Aug 6, 2026•8 Day Trip

$719 USD

Google Flights

Returning

Fri, Aug 7, 2026•9 Day Trip

$810 USD

Google Flights

Returning

Tue, Aug 11, 2026•13 Day Trip

$770 USD

Google Flights

Returning

Wed, Aug 12, 2026•14 Day Trip

$770 USD

Google Flights

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

Bilbao Airport

O'Hare International Airport

July 2026

Wednesday, July 29th, 2026