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

Tuesday, December 15th, 2026

6 round-trip options

Returning
Sun, Dec 20, 2026•5 Day Trip
$813 USD
Google Flights
Returning
Tue, Dec 22, 2026•7 Day Trip
$763 USD
Google Flights
Returning
Wed, Dec 23, 2026•8 Day Trip
$763 USD
Google Flights
Returning
Sat, Dec 26, 2026•11 Day Trip
$858 USD
Google Flights
Returning
Mon, Dec 28, 2026•13 Day Trip
$842 USD
Google Flights
Returning
Tue, Dec 29, 2026•14 Day Trip
$798 USD
Google Flights