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

Saturday, October 31st, 2026

2 round-trip options

Returning
Sun, Nov 8, 2026•8 Day Trip
$522 USD
Google Flights
Returning
Sat, Nov 14, 2026•14 Day Trip
$774 USD
Google Flights