San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 9 hours agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
30% of dates checked are available within 10% of the lowest price
Tuesday, August 11th, 2026
7 round-trip options
Returning
Sun, Aug 16, 2026•5 Day Trip
$1,430 USD
Returning
Mon, Aug 17, 2026•6 Day Trip
$1,179 USD
Returning
Tue, Aug 18, 2026•7 Day Trip
$882 USD
Returning
Wed, Aug 19, 2026•8 Day Trip
$816 USD
Returning
Thu, Aug 20, 2026•9 Day Trip
$823 USD
Returning
Fri, Aug 21, 2026•10 Day Trip
$816 USD
Returning
Tue, Aug 25, 2026•14 Day Trip
$816 USD