San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 6 hours agoOctober 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Thursday, October 15th, 2026
5 round-trip options
Returning
Wed, Oct 21, 2026•6 Day Trip
$776 USD
Returning
Mon, Oct 26, 2026•11 Day Trip
$830 USD
Returning
Tue, Oct 27, 2026•12 Day Trip
$783 USD
Returning
Wed, Oct 28, 2026•13 Day Trip
$776 USD
Returning
Thu, Oct 29, 2026•14 Day Trip
$776 USD