Chicago (ORD) to Bilbao (BIO) flight deal in economy from $727
$980 USD
-26%$727 USD
Verified about 14 hours agoDecember 2026
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Good Availability
42% of dates checked are available within 10% of the lowest price
Sunday, December 6th, 2026
10 round-trip options
Returning
Fri, Dec 11, 2026•5 Day Trip
$736 USD
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Sat, Dec 12, 2026•6 Day Trip
$786 USD
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Sun, Dec 13, 2026•7 Day Trip
$786 USD
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Mon, Dec 14, 2026•8 Day Trip
$747 USD
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Tue, Dec 15, 2026•9 Day Trip
$736 USD
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Wed, Dec 16, 2026•10 Day Trip
$736 USD
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Thu, Dec 17, 2026•11 Day Trip
$956 USD
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Fri, Dec 18, 2026•12 Day Trip
$890 USD
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Sat, Dec 19, 2026•13 Day Trip
$1,101 USD
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Sun, Dec 20, 2026•14 Day Trip
$1,006 USD