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
Wednesday, August 12th, 2026
7 round-trip options
Returning
Mon, Aug 17, 2026•5 Day Trip
$1,176 USD
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Tue, Aug 18, 2026•6 Day Trip
$978 USD
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Wed, Aug 19, 2026•7 Day Trip
$816 USD
Returning
Thu, Aug 20, 2026•8 Day Trip
$823 USD
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Fri, Aug 21, 2026•9 Day Trip
$816 USD
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Sat, Aug 22, 2026•10 Day Trip
$883 USD
Returning
Wed, Aug 26, 2026•14 Day Trip
$816 USD