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
Sunday, December 27th, 2026
5 round-trip options
Returning
Sat, Jan 2, 2027•6 Day Trip
$1,303 USD
Returning
Sun, Jan 3, 2027•7 Day Trip
$1,529 USD
Returning
Tue, Jan 5, 2027•9 Day Trip
$1,132 USD
Returning
Thu, Jan 7, 2027•11 Day Trip
$926 USD
Returning
Sun, Jan 10, 2027•14 Day Trip
$1,017 USD