San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $727
$867 USD
-16%$727 USD
Verified 14 days agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Good Availability
52% of dates checked are available within 10% of the lowest price
Thursday, December 24th, 2026
10 round-trip options
Returning
Tue, Dec 29, 2026•5 Day Trip
$808 USD
Returning
Wed, Dec 30, 2026•6 Day Trip
$895 USD
Returning
Thu, Dec 31, 2026•7 Day Trip
$809 USD
Returning
Fri, Jan 1, 2027•8 Day Trip
$1,041 USD
Returning
Sat, Jan 2, 2027•9 Day Trip
$1,342 USD
Returning
Sun, Jan 3, 2027•10 Day Trip
$1,342 USD
Returning
Mon, Jan 4, 2027•11 Day Trip
$1,160 USD
Returning
Tue, Jan 5, 2027•12 Day Trip
$1,021 USD
Returning
Wed, Jan 6, 2027•13 Day Trip
$910 USD
Returning
Thu, Jan 7, 2027•14 Day Trip
$900 USD