San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $727
$867 USD
-16%$727 USD
Verified 14 days agoAugust 2026
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Good Availability
52% of dates checked are available within 10% of the lowest price
Wednesday, August 5th, 2026
10 round-trip options
Returning
Mon, Aug 10, 2026•5 Day Trip
$1,126 USD
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Tue, Aug 11, 2026•6 Day Trip
$886 USD
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Wed, Aug 12, 2026•7 Day Trip
$881 USD
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Thu, Aug 13, 2026•8 Day Trip
$1,257 USD
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Fri, Aug 14, 2026•9 Day Trip
$1,081 USD
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Sat, Aug 15, 2026•10 Day Trip
$1,502 USD
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Sun, Aug 16, 2026•11 Day Trip
$1,375 USD
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Mon, Aug 17, 2026•12 Day Trip
$877 USD
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Tue, Aug 18, 2026•13 Day Trip
$876 USD
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Wed, Aug 19, 2026•14 Day Trip
$816 USD