BIO to ORD from $384 in economy

AAAmerican Airlines

AYFinnair

Bilbao Airport

Bilbao, Spain

ORD

O'Hare International Airport

Chicago, United States

$892 USD

-57%$384 USD

Verified about 3 hours ago

September 2026

Today

Mon

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Sun

31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16$1,542 17$1,226 18$1,243 19$1,254 20$1,531 21$1,226 22$1,237 23$677 24$384 25$476 26$914 27$1,110 28$816 29$815 30$654 1$718 2$499 3$951 4$1,040

Limited Availability

14% of dates checked are available within 10% of the lowest price

Wednesday, September 16th, 2026

5 round-trip options

Returning

Mon, Sep 21, 2026•5 Day Trip

$1,542 USD

Google Flights

Returning

Tue, Sep 22, 2026•6 Day Trip

$1,742 USD

Google Flights

Returning

Wed, Sep 23, 2026•7 Day Trip

$1,542 USD

Google Flights

Returning

Thu, Sep 24, 2026•8 Day Trip

$1,542 USD

Google Flights

Returning

Fri, Sep 25, 2026•9 Day Trip

$1,560 USD

Google Flights

Bilbao (BIO) to Chicago (ORD) flight deal in economy from $384

Bilbao Airport

O'Hare International Airport

September 2026

Wednesday, September 16th, 2026