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 14 days ago
Good Availability
47% of dates checked are available within 10% of the lowest price

Monday, December 14th, 2026

6 round-trip options

Returning
Sat, Dec 19, 2026•5 Day Trip
$810 USD
Google Flights
Returning
Mon, Dec 21, 2026•7 Day Trip
$760 USD
Google Flights
Returning
Tue, Dec 22, 2026•8 Day Trip
$758 USD
Google Flights
Returning
Fri, Dec 25, 2026•11 Day Trip
$972 USD
Google Flights
Returning
Sun, Dec 27, 2026•13 Day Trip
$836 USD
Google Flights
Returning
Mon, Dec 28, 2026•14 Day Trip
$837 USD
Google Flights