Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 15 days agoAugust 2026
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Monday, August 24th, 2026
7 round-trip options
Returning
Sat, Aug 29, 2026•5 Day Trip
$1,370 USD
Returning
Sun, Aug 30, 2026•6 Day Trip
$713 USD
Returning
Mon, Aug 31, 2026•7 Day Trip
$719 USD
Returning
Tue, Sep 1, 2026•8 Day Trip
$890 USD
Returning
Wed, Sep 2, 2026•9 Day Trip
$896 USD
Returning
Sun, Sep 6, 2026•13 Day Trip
$976 USD
Returning
Mon, Sep 7, 2026•14 Day Trip
$696 USD