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
Tuesday, December 22nd, 2026
5 round-trip options
Returning
Mon, Dec 28, 2026•6 Day Trip
$1,036 USD
Returning
Tue, Dec 29, 2026•7 Day Trip
$1,043 USD
Returning
Thu, Dec 31, 2026•9 Day Trip
$1,467 USD
Returning
Sat, Jan 2, 2027•11 Day Trip
$1,554 USD
Returning
Tue, Jan 5, 2027•14 Day Trip
$1,384 USD