Porto (OPO) to San Francisco (SFO) flight deal in economy from $669

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
Round Trip•Economy
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
United StatesSFO

San Francisco International Airport

San Francisco, United States
$871 USD
-23%$669 USD
Verified about 15 hours ago
Limited Availability
16% of dates checked are available within 10% of the lowest price

Wednesday, November 11th, 2026

7 round-trip options

Returning
Mon, Nov 16, 2026•5 Day Trip
$859 USD
Google Flights
Returning
Tue, Nov 17, 2026•6 Day Trip
$859 USD
Google Flights
Returning
Thu, Nov 19, 2026•8 Day Trip
$874 USD
Google Flights
Returning
Sat, Nov 21, 2026•10 Day Trip
$790 USD
Google Flights
Returning
Sun, Nov 22, 2026•11 Day Trip
$702 USD
Google Flights
Returning
Tue, Nov 24, 2026•13 Day Trip
$703 USD
Google Flights
Returning
Wed, Nov 25, 2026•14 Day Trip
$689 USD
Google Flights