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 16 days ago
Good Availability
47% of dates checked are available within 10% of the lowest price

Friday, September 4th, 2026

5 round-trip options

Returning
Wed, Sep 9, 2026•5 Day Trip
$1,027 USD
Google Flights
Returning
Sat, Sep 12, 2026•8 Day Trip
$1,130 USD
Google Flights
Returning
Mon, Sep 14, 2026•10 Day Trip
$1,125 USD
Google Flights
Returning
Tue, Sep 15, 2026•11 Day Trip
$1,027 USD
Google Flights
Returning
Wed, Sep 16, 2026•12 Day Trip
$1,027 USD
Google Flights