Bilbao (BIO) to San Francisco (SFO) flight deal in economy from $505

Air FranceAFAir FranceDelta Air LinesDLDelta Air LinesKLMKLKLM
Round Trip•Economy
SpainBIO

Bilbao Airport

Bilbao, Spain
United StatesSFO

San Francisco International Airport

San Francisco, United States
$802 USD
-37%$505 USD
Verified 13 days ago
Limited Availability
11% of dates checked are available within 10% of the lowest price

Friday, December 18th, 2026

3 round-trip options

Returning
Thu, Dec 24, 2026•6 Day Trip
$1,123 USD
Google Flights
Returning
Sun, Dec 27, 2026•9 Day Trip
$1,118 USD
Google Flights
Returning
Tue, Dec 29, 2026•11 Day Trip
$1,187 USD
Google Flights