San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 8 hours agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
30% of dates checked are available within 10% of the lowest price
Friday, October 16th, 2026
5 round-trip options
Returning
Thu, Oct 22, 2026•6 Day Trip
$780 USD
Returning
Tue, Oct 27, 2026•11 Day Trip
$787 USD
Returning
Wed, Oct 28, 2026•12 Day Trip
$780 USD
Returning
Thu, Oct 29, 2026•13 Day Trip
$780 USD
Returning
Fri, Oct 30, 2026•14 Day Trip
$780 USD