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

Wednesday, September 23rd, 2026

5 round-trip options

Returning
Mon, Sep 28, 2026•5 Day Trip
$840 USD
Google Flights
Returning
Thu, Oct 1, 2026•8 Day Trip
$839 USD
Google Flights
Returning
Sat, Oct 3, 2026•10 Day Trip
$1,104 USD
Google Flights
Returning
Sun, Oct 4, 2026•11 Day Trip
$1,004 USD
Google Flights
Returning
Mon, Oct 5, 2026•12 Day Trip
$921 USD
Google Flights