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

Monday, December 28th, 2026

6 round-trip options

Returning
Sat, Jan 2, 2027•5 Day Trip
$1,339 USD
Google Flights
Returning
Mon, Jan 4, 2027•7 Day Trip
$1,183 USD
Google Flights
Returning
Tue, Jan 5, 2027•8 Day Trip
$969 USD
Google Flights
Returning
Fri, Jan 8, 2027•11 Day Trip
$763 USD
Google Flights
Returning
Sun, Jan 10, 2027•13 Day Trip
$854 USD
Google Flights
Returning
Mon, Jan 11, 2027•14 Day Trip
$767 USD
Google Flights