San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 8 hours agoJuly 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Monday, July 20th, 2026
7 round-trip options
Returning
Sat, Jul 25, 2026•5 Day Trip
$1,677 USD
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Sun, Jul 26, 2026•6 Day Trip
$1,149 USD
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Mon, Jul 27, 2026•7 Day Trip
$1,156 USD
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Tue, Jul 28, 2026•8 Day Trip
$1,074 USD
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Wed, Jul 29, 2026•9 Day Trip
$1,072 USD
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Thu, Jul 30, 2026•10 Day Trip
$1,074 USD
Returning
Mon, Aug 3, 2026•14 Day Trip
$1,251 USD