Bilbao (BIO) to Chicago (ORD) flight deal in economy from $399
$903 USD
-56%$399 USD
Verified 16 days agoOctober 2026
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Thursday, October 15th, 2026
3 round-trip options
Returning
Wed, Oct 21, 2026•6 Day Trip
$399 USD
Returning
Fri, Oct 23, 2026•8 Day Trip
$417 USD
Returning
Sun, Oct 25, 2026•10 Day Trip
$547 USD