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
Monday, August 3rd, 2026
7 round-trip options
Returning
Sat, Aug 8, 2026•5 Day Trip
$1,629 USD
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Sun, Aug 9, 2026•6 Day Trip
$1,315 USD
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Mon, Aug 10, 2026•7 Day Trip
$1,315 USD
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Tue, Aug 11, 2026•8 Day Trip
$894 USD
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Wed, Aug 12, 2026•9 Day Trip
$925 USD
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Thu, Aug 13, 2026•10 Day Trip
$1,095 USD
Returning
Mon, Aug 17, 2026•14 Day Trip
$1,169 USD