San Francisco (SFO) to Porto (OPO) flight deal in economy from $728

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
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
$897 USD
-19%$728 USD
Verified 15 days ago
Good Availability
47% of dates checked are available within 10% of the lowest price

Wednesday, September 16th, 2026

5 round-trip options

Returning
Mon, Sep 21, 2026•5 Day Trip
$901 USD
Google Flights
Returning
Thu, Sep 24, 2026•8 Day Trip
$899 USD
Google Flights
Returning
Sat, Sep 26, 2026•10 Day Trip
$1,066 USD
Google Flights
Returning
Sun, Sep 27, 2026•11 Day Trip
$1,035 USD
Google Flights
Returning
Mon, Sep 28, 2026•12 Day Trip
$876 USD
Google Flights