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

Thursday, September 10th, 2026

5 round-trip options

Returning
Tue, Sep 15, 2026•5 Day Trip
$972 USD
Google Flights
Returning
Fri, Sep 18, 2026•8 Day Trip
$971 USD
Google Flights
Returning
Sun, Sep 20, 2026•10 Day Trip
$1,042 USD
Google Flights
Returning
Mon, Sep 21, 2026•11 Day Trip
$972 USD
Google Flights
Returning
Tue, Sep 22, 2026•12 Day Trip
$971 USD
Google Flights