San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 8 hours agoOctober 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Wednesday, October 7th, 2026
5 round-trip options
Returning
Tue, Oct 13, 2026•6 Day Trip
$726 USD
Returning
Sun, Oct 18, 2026•11 Day Trip
$783 USD
Returning
Mon, Oct 19, 2026•12 Day Trip
$783 USD
Returning
Tue, Oct 20, 2026•13 Day Trip
$726 USD
Returning
Wed, Oct 21, 2026•14 Day Trip
$733 USD