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

Tuesday, September 22nd, 2026

5 round-trip options

Returning
Sun, Sep 27, 2026•5 Day Trip
$970 USD
Google Flights
Returning
Wed, Sep 30, 2026•8 Day Trip
$834 USD
Google Flights
Returning
Fri, Oct 2, 2026•10 Day Trip
$899 USD
Google Flights
Returning
Sat, Oct 3, 2026•11 Day Trip
$1,112 USD
Google Flights
Returning
Sun, Oct 4, 2026•12 Day Trip
$1,000 USD
Google Flights