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

Sunday, October 18th, 2026

5 round-trip options

Returning
Fri, Oct 23, 2026•5 Day Trip
$757 USD
Google Flights
Returning
Mon, Oct 26, 2026•8 Day Trip
$840 USD
Google Flights
Returning
Wed, Oct 28, 2026•10 Day Trip
$759 USD
Google Flights
Returning
Thu, Oct 29, 2026•11 Day Trip
$759 USD
Google Flights
Returning
Fri, Oct 30, 2026•12 Day Trip
$758 USD
Google Flights