San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $710
$954 USD
-26%$710 USD
Verified about 6 hours agoDecember 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Monday, December 14th, 2026
5 round-trip options
Returning
Sun, Dec 20, 2026•6 Day Trip
$1,166 USD
Returning
Mon, Dec 21, 2026•7 Day Trip
$822 USD
Returning
Wed, Dec 23, 2026•9 Day Trip
$838 USD
Returning
Fri, Dec 25, 2026•11 Day Trip
$772 USD
Returning
Mon, Dec 28, 2026•14 Day Trip
$945 USD