San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $693
$991 USD
-30%$693 USD
Verified about 3 hours agoDecember 2026
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Fair Availability
25% of dates checked are available within 10% of the lowest price
Tuesday, December 22nd, 2026
10 round-trip options
Returning
Sun, Dec 27, 2026•5 Day Trip
$1,911 USD
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Mon, Dec 28, 2026•6 Day Trip
$1,786 USD
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Tue, Dec 29, 2026•7 Day Trip
$1,958 USD
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Wed, Dec 30, 2026•8 Day Trip
$1,958 USD
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Thu, Dec 31, 2026•9 Day Trip
$1,861 USD
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Fri, Jan 1, 2027•10 Day Trip
$2,477 USD
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Sat, Jan 2, 2027•11 Day Trip
$2,794 USD
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Sun, Jan 3, 2027•12 Day Trip
$2,784 USD
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Mon, Jan 4, 2027•13 Day Trip
$2,318 USD
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Tue, Jan 5, 2027•14 Day Trip
$1,966 USD