San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $446

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
One Way•Economy
United StatesSFO

San Francisco International Airport

San Francisco, United States
SpainBIO

Bilbao Airport

Bilbao, Spain
$615 USD
-27%$446 USD
Verified about 2 hours ago
Fair Availability
29% of dates checked are available within 10% of the lowest price

Tuesday, September 29th, 2026

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