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

Friday, September 18th, 2026

5 round-trip options

Returning
Wed, Sep 23, 2026•5 Day Trip
$899 USD
Google Flights
Returning
Sat, Sep 26, 2026•8 Day Trip
$1,075 USD
Google Flights
Returning
Mon, Sep 28, 2026•10 Day Trip
$900 USD
Google Flights
Returning
Tue, Sep 29, 2026•11 Day Trip
$898 USD
Google Flights
Returning
Wed, Sep 30, 2026•12 Day Trip
$898 USD
Google Flights