Bilbao (BIO) to Chicago (ORD) flight deal in economy from $499
$955 USD
-48%$499 USD
Verified about 17 hours agoDecember 2026
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Rare Availability
7% of dates checked are available within 10% of the lowest price
Monday, December 28th, 2026
10 round-trip options
Returning
Sat, Jan 2, 2027•5 Day Trip
$1,390 USD
Returning
Sun, Jan 3, 2027•6 Day Trip
$933 USD
Returning
Mon, Jan 4, 2027•7 Day Trip
$916 USD
Returning
Tue, Jan 5, 2027•8 Day Trip
$1,227 USD
Returning
Wed, Jan 6, 2027•9 Day Trip
$968 USD
Returning
Thu, Jan 7, 2027•10 Day Trip
$916 USD
Returning
Fri, Jan 8, 2027•11 Day Trip
$910 USD
Returning
Sat, Jan 9, 2027•12 Day Trip
$985 USD
Returning
Sun, Jan 10, 2027•13 Day Trip
$933 USD
Returning
Mon, Jan 11, 2027•14 Day Trip
$892 USD