$306+ Cheap flights from San Francisco (SFO) to Porto (OPO)

Air Transat, at $876, was found to be the cheapest airline from San Francisco to Porto.Alternate airlines to your destination round-trip include SWISS and United Airlines. Users have found that Air Transat is 9% cheaper than the other options available to this destination.

The cheapest airlines for a one-way flight from San Francisco to Porto are TAP AIR PORTUGAL ($306), Iberia ($394), and Air Transat ($484).

Of the flights from San Francisco to Porto that have layovers, most of them stop in Lisbon.

The majority of Lisbon visitors spend their time at Chiado, Praça do Marquês de Pombal, and Commerce Square. Travelers on a layover in Lisbon can visit Chiado, Praça do Marquês de Pombal, and Commerce Square, by traveling 4.5 mi, 3.6 mi, and 4.7 mi, respectively after landing at Lisbon Humberto Delgado. Travelers can book a car rental at Lisbon Humberto Delgado for about $21 per day to make their sightseeing more efficient.

Of the flights from San Francisco to Porto that have layovers, the fewest flights stop in Frankfurt am Main.

Yes. In addition to deals on San Francisco to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Porto.

Yes. Cheapflights offers flight deals from San Francisco to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, January is the cheapest month in which you can book a flight from San Francisco to Porto (average of $523). Flying from San Francisco to Porto in June is currently the most expensive (average of $1,059). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.