San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 6 hours agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
30% of dates checked are available within 10% of the lowest price
Saturday, December 19th, 2026
5 round-trip options
Returning
Fri, Dec 25, 2026•6 Day Trip
$1,414 USD
Returning
Sat, Dec 26, 2026•7 Day Trip
$1,654 USD
Returning
Mon, Dec 28, 2026•9 Day Trip
$1,571 USD
Returning
Wed, Dec 30, 2026•11 Day Trip
$1,599 USD
Returning
Sat, Jan 2, 2027•14 Day Trip
$1,894 USD