United & SWISS are selling cheap flights from San Francisco, United States to Lisbon, Portugal for as low as $333 return! That works out to a cost of just 2.9 Cents Per Mile for this 11300 mile journey.

The fare only includes carry-on luggage, so you need to pay extra if you want to check bags.

Our data shows the lowest prices are available in November 2021. See the link(s) below for dates and prices.

Sample date(s) with Kiwi.com booking link

Oct 4 – Oct 11 ($338)

Oct 19 – Oct 26 ($338)

Oct 25 – Oct 30 ($336)

Nov 1 – Nov 8 ($339)

Nov 1 – Nov 11 ($339)

Nov 3 – Nov 10 ($339)

Nov 4 – Nov 11 ($334)

Nov 8 – Nov 15 ($338)

Nov 17 – Nov 24 ($333)

Dec 6 – Dec 13 ($336)

Are you looking for an apartment to rent for your stay in Lisbon, Portugal? Check out what Vrbo.com has to offer!

We post many cheap flights like this one from San Francisco, United States to Lisbon, Portugal every single day, so have a look at our Travel Deals page, or check out the related posts below!

Note: Prices are valid at the time of publishing this post, but may change in the future.

COVID-19 Note: During these uncertain times, please make sure to check the relevant Coronavirus restrictions for your destination before you book and before you fly. We recommend also checking the refund policy of the airline, as well as purchasing travel insurance for your trip.