San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 12 hours agoAugust 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Friday, August 7th, 2026
7 round-trip options
Returning
Wed, Aug 12, 2026•5 Day Trip
$1,343 USD
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Thu, Aug 13, 2026•6 Day Trip
$1,312 USD
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Fri, Aug 14, 2026•7 Day Trip
$1,418 USD
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Sat, Aug 15, 2026•8 Day Trip
$2,025 USD
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Sun, Aug 16, 2026•9 Day Trip
$1,554 USD
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Mon, Aug 17, 2026•10 Day Trip
$1,371 USD
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Fri, Aug 21, 2026•14 Day Trip
$1,032 USD