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

Friday, November 6th, 2026

7 round-trip options

Returning
Wed, Nov 11, 2026•5 Day Trip
$852 USD
Google Flights
Returning
Thu, Nov 12, 2026•6 Day Trip
$852 USD
Google Flights
Returning
Sat, Nov 14, 2026•8 Day Trip
$852 USD
Google Flights
Returning
Mon, Nov 16, 2026•10 Day Trip
$703 USD
Google Flights
Returning
Tue, Nov 17, 2026•11 Day Trip
$686 USD
Google Flights
Returning
Thu, Nov 19, 2026•13 Day Trip
$867 USD
Google Flights
Returning
Fri, Nov 20, 2026•14 Day Trip
$890 USD
Google Flights