Bilbao (BIO) to Chicago (ORD) flight deal from $405 USD in economy class – flightdeals.net

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American Airlines

AAAmerican Airlines

Finnair

British Airways

BABritish Airways

Iberia Airlines

IBIberia Airlines

Round Trip•Economy

Bilbao Airport

O'Hare International Airport

Chicago, United States

$895 USD

-55%$405 USD

Verified Nov 29, 2025 at 11:20 AM

March 2026

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23 24 25 26 27 28 1$422 2$405 3$411 4$411 5$405 6$431 7$476 8$451 9$443 10$434 11$434 12$434 13$489 14$518 15 16 17$463 18 19$463 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5

Good Availability

42% of dates checked are available within 10% of the lowest price

Thursday, March 19th, 2026

2 round-trip options

Returning

Sun, Mar 29, 2026•10 Day Trip

$480 USD

Returning

Tue, Mar 31, 2026•12 Day Trip

$463 USD