San Francisco (SFO) to Bilbao (BIO) flight deal in economy from $727

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSFO

San Francisco International Airport

San Francisco, United States
SpainBIO

Bilbao Airport

Bilbao, Spain
$867 USD
-16%$727 USD
Verified 14 days ago
Good Availability
52% of dates checked are available within 10% of the lowest price

Friday, December 18th, 2026

10 round-trip options

Returning
Wed, Dec 23, 2026•5 Day Trip
$1,382 USD
Google Flights
Returning
Thu, Dec 24, 2026•6 Day Trip
$1,380 USD
Google Flights
Returning
Fri, Dec 25, 2026•7 Day Trip
$1,402 USD
Google Flights
Returning
Sat, Dec 26, 2026•8 Day Trip
$1,502 USD
Google Flights
Returning
Sun, Dec 27, 2026•9 Day Trip
$1,471 USD
Google Flights
Returning
Mon, Dec 28, 2026•10 Day Trip
$1,471 USD
Google Flights
Returning
Tue, Dec 29, 2026•11 Day Trip
$1,411 USD
Google Flights
Returning
Wed, Dec 30, 2026•12 Day Trip
$1,498 USD
Google Flights
Returning
Thu, Dec 31, 2026•13 Day Trip
$1,412 USD
Google Flights
Returning
Fri, Jan 1, 2027•14 Day Trip
$1,854 USD
Google Flights