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, July 20th, 2026

7 round-trip options

Returning
Sat, Jul 25, 2026•5 Day Trip
$1,517 USD
Google Flights
Returning
Mon, Jul 27, 2026•7 Day Trip
$1,111 USD
Google Flights
Returning
Tue, Jul 28, 2026•8 Day Trip
$1,061 USD
Google Flights
Returning
Wed, Jul 29, 2026•9 Day Trip
$1,061 USD
Google Flights
Returning
Thu, Jul 30, 2026•10 Day Trip
$1,064 USD
Google Flights
Returning
Sun, Aug 2, 2026•13 Day Trip
$1,310 USD
Google Flights
Returning
Mon, Aug 3, 2026•14 Day Trip
$1,135 USD
Google Flights