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, August 21st, 2026

7 round-trip options

Returning
Wed, Aug 26, 2026•5 Day Trip
$894 USD
Google Flights
Returning
Fri, Aug 28, 2026•7 Day Trip
$894 USD
Google Flights
Returning
Sat, Aug 29, 2026•8 Day Trip
$955 USD
Google Flights
Returning
Sun, Aug 30, 2026•9 Day Trip
$954 USD
Google Flights
Returning
Mon, Aug 31, 2026•10 Day Trip
$896 USD
Google Flights
Returning
Thu, Sep 3, 2026•13 Day Trip
$895 USD
Google Flights
Returning
Fri, Sep 4, 2026•14 Day Trip
$895 USD
Google Flights