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
Monday, October 12th, 2026
5 round-trip options
Returning
Sun, Oct 18, 2026•6 Day Trip
$783 USD
Returning
Fri, Oct 23, 2026•11 Day Trip
$726 USD
Returning
Sat, Oct 24, 2026•12 Day Trip
$782 USD
Returning
Sun, Oct 25, 2026•13 Day Trip
$1,074 USD
Returning
Mon, Oct 26, 2026•14 Day Trip
$775 USD