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, August 31st, 2026

7 round-trip options

Returning
Sat, Sep 5, 2026•5 Day Trip
$1,506 USD
Google Flights
Returning
Mon, Sep 7, 2026•7 Day Trip
$901 USD
Google Flights
Returning
Tue, Sep 8, 2026•8 Day Trip
$901 USD
Google Flights
Returning
Wed, Sep 9, 2026•9 Day Trip
$900 USD
Google Flights
Returning
Thu, Sep 10, 2026•10 Day Trip
$899 USD
Google Flights
Returning
Sun, Sep 13, 2026•13 Day Trip
$971 USD
Google Flights
Returning
Mon, Sep 14, 2026•14 Day Trip
$947 USD
Google Flights