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

Friday, December 18th, 2026

6 round-trip options

Returning
Wed, Dec 23, 2026•5 Day Trip
$1,339 USD
Google Flights
Returning
Fri, Dec 25, 2026•7 Day Trip
$1,448 USD
Google Flights
Returning
Sat, Dec 26, 2026•8 Day Trip
$1,440 USD
Google Flights
Returning
Tue, Dec 29, 2026•11 Day Trip
$1,380 USD
Google Flights
Returning
Thu, Dec 31, 2026•13 Day Trip
$1,391 USD
Google Flights
Returning
Fri, Jan 1, 2027•14 Day Trip
$1,638 USD
Google Flights