Bilbao (BIO) to Chicago (ORD) flight deal in economy from $519
$1,009 USD
-49%$519 USD
Verified 2 days agoAugust 2026
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Monday, August 31st, 2026
7 round-trip options
Returning
Sat, Sep 5, 2026•5 Day Trip
$1,195 USD
Returning
Sun, Sep 6, 2026•6 Day Trip
$537 USD
Returning
Mon, Sep 7, 2026•7 Day Trip
$595 USD
Returning
Tue, Sep 8, 2026•8 Day Trip
$519 USD
Returning
Wed, Sep 9, 2026•9 Day Trip
$682 USD
Returning
Sun, Sep 13, 2026•13 Day Trip
$893 USD
Returning
Mon, Sep 14, 2026•14 Day Trip
$718 USD