Chicago (ORD) to Bilbao (BIO) flight deal in economy from $735
$969 USD
-24%$735 USD
Verified 1 day agoJanuary 2027
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Fair Availability
29% of dates checked are available within 10% of the lowest price
Friday, January 29th, 2027
2 round-trip options
Returning
Mon, Feb 8, 2027•10 Day Trip
$870 USD
Returning
Tue, Feb 9, 2027•11 Day Trip
$1,126 USD