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 14 hours ago
Limited Availability
16% of dates checked are available within 10% of the lowest price

Thursday, November 19th, 2026

7 round-trip options

Returning
Tue, Nov 24, 2026•5 Day Trip
$702 USD
Google Flights
Returning
Wed, Nov 25, 2026•6 Day Trip
$688 USD
Google Flights
Returning
Fri, Nov 27, 2026•8 Day Trip
$688 USD
Google Flights
Returning
Sun, Nov 29, 2026•10 Day Trip
$789 USD
Google Flights
Returning
Mon, Nov 30, 2026•11 Day Trip
$732 USD
Google Flights
Returning
Wed, Dec 2, 2026•13 Day Trip
$688 USD
Google Flights
Returning
Thu, Dec 3, 2026•14 Day Trip
$690 USD
Google Flights