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

Tuesday, January 12th, 2027

4 round-trip options

Returning
Mon, Jan 18, 2027•6 Day Trip
$709 USD
Google Flights
Returning
Tue, Jan 19, 2027•7 Day Trip
$709 USD
Google Flights
Returning
Wed, Jan 20, 2027•8 Day Trip
$696 USD
Google Flights
Returning
Thu, Jan 21, 2027•9 Day Trip
$708 USD
Google Flights