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

Monday, September 7th, 2026

5 round-trip options

Returning
Sat, Sep 12, 2026•5 Day Trip
$1,506 USD
Google Flights
Returning
Tue, Sep 15, 2026•8 Day Trip
$900 USD
Google Flights
Returning
Thu, Sep 17, 2026•10 Day Trip
$899 USD
Google Flights
Returning
Fri, Sep 18, 2026•11 Day Trip
$899 USD
Google Flights
Returning
Sat, Sep 19, 2026•12 Day Trip
$971 USD
Google Flights