San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 10 hours agoAugust 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Monday, August 10th, 2026
7 round-trip options
Returning
Sat, Aug 15, 2026•5 Day Trip
$1,865 USD
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Sun, Aug 16, 2026•6 Day Trip
$1,434 USD
Returning
Mon, Aug 17, 2026•7 Day Trip
$1,179 USD
Returning
Tue, Aug 18, 2026•8 Day Trip
$969 USD
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Wed, Aug 19, 2026•9 Day Trip
$820 USD
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Thu, Aug 20, 2026•10 Day Trip
$827 USD
Returning
Mon, Aug 24, 2026•14 Day Trip
$880 USD