San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 9 hours agoAugust 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Saturday, August 22nd, 2026
7 round-trip options
Returning
Thu, Aug 27, 2026•5 Day Trip
$1,498 USD
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Fri, Aug 28, 2026•6 Day Trip
$974 USD
Returning
Sat, Aug 29, 2026•7 Day Trip
$974 USD
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Sun, Aug 30, 2026•8 Day Trip
$974 USD
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Mon, Aug 31, 2026•9 Day Trip
$1,089 USD
Returning
Tue, Sep 1, 2026•10 Day Trip
$1,029 USD
Returning
Sat, Sep 5, 2026•14 Day Trip
$934 USD