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 21st, 2026

5 round-trip options

Returning
Sat, Sep 26, 2026•5 Day Trip
$1,378 USD
Google Flights
Returning
Tue, Sep 29, 2026•8 Day Trip
$834 USD
Google Flights
Returning
Thu, Oct 1, 2026•10 Day Trip
$837 USD
Google Flights
Returning
Fri, Oct 2, 2026•11 Day Trip
$901 USD
Google Flights
Returning
Sat, Oct 3, 2026•12 Day Trip
$1,104 USD
Google Flights