LIS - SFO

$625 Find Cheap Flights from Lisbon to San Francisco - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Lisbon to San Francisco departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$682
Typical prices: $739-$971
TAP AIR PORTUGAL
Wed 11/18Wed 11/25
LIS - SFO • Non-stop
Cheapest one-way
$625
Typical prices: $486-$937
British Airways
Sat 10/3
LIS - SFO • 1 stop
Nonstop flights
Mon, Tue, Wed, Thu, Sat
You can fly direct with TAP AIR PORTUGAL. Average duration is 12h 35m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $697 (round-trip)
Shortest trip • 14h 45m (one-way)
Insights
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Avoid delays
Most punctual • 81% on-time
Best time • Fewest delays
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 5% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
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Expert advice
Flight Deals

Cheap Flights from Lisbon to San Francisco (LIS-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Lisbon to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Lisbon to San Francisco

Wed, Nov 18 - Wed, Nov 25
TAP AIR PORTUGAL Logo
9:55 am - 2:45 pm
LIS
-
SFO
12h 50mnonstop
TAP AIR PORTUGAL Logo
4:35 pm - 11:40 am
SFO
-
LIS
11h 05mnonstop
$682TAP AIR PORTUGAL
Wed, Nov 18 - Wed, Nov 25
TAP AIR PORTUGAL Logo
9:55 am - 2:45 pm
LIS
-
SFO
12h 50mnonstop
TAP AIR PORTUGAL Logo
4:35 pm - 11:40 am
SFO
-
LIS
11h 05mnonstop
$688TAP AIR PORTUGAL
Wed, Nov 18 - Wed, Nov 25
TAP AIR PORTUGAL Logo
9:55 am - 2:45 pm
LIS
-
SFO
12h 50mnonstop
TAP AIR PORTUGAL Logo
4:35 pm - 11:40 am
SFO
-
LIS
11h 05mnonstop
$695TAP AIR PORTUGAL
Wed, Sep 9 - Wed, Sep 30
TAP AIR PORTUGAL Logo
9:40 am - 2:35 pm
LIS
-
SFO
12h 55mnonstop
TAP AIR PORTUGAL Logo
4:35 pm - 11:50 am
SFO
-
LIS
11h 15mnonstop
$698TAP AIR PORTUGAL
Wed, Nov 18 - Wed, Nov 25
KLM Logo
5:00 am - 11:45 am
LIS
-
SFO
14h 45m
1 stop
KLM Logo
1:50 pm - 6:30 pm
SFO
-
LIS
20h 40m
1 stop
$714KLM
Wed, Nov 18 - Wed, Nov 25
Multiple Airlines Logo
5:00 am - 11:45 am
LIS
-
SFO
14h 45m
1 stop
Multiple Airlines Logo
3:10 pm - 5:30 pm
SFO
-
LIS
18h 20m
1 stop
$723Multiple Airlines
Wed, Nov 18 - Wed, Nov 25
Delta Logo
5:00 am - 4:02 pm
LIS
-
SFO
19h 02m
2 stops
Delta Logo
10:31 am - 3:10 pm
SFO
-
LIS
20h 39m
2 stops
$728Delta
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
5:45 pm - 2:30 pm
LIS
-
SFO
28h 45m
2 stops
Multiple Airlines Logo
4:30 pm - 6:25 pm
SFO
-
LIS
17h 55m
2 stops
$731Multiple Airlines
Thu, Nov 19 - Thu, Dec 3
Scandinavian Airlines Logo
4:55 pm - 2:50 pm
LIS
-
SFO
29h 55m
1 stop
Scandinavian Airlines Logo
4:45 pm - 4:05 pm
SFO
-
LIS
15h 20m
1 stop
$733Scandinavian Airlines
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
9:15 pm - 2:30 pm
LIS
-
SFO
25h 15m
2 stops
Multiple Airlines Logo
4:30 pm - 6:50 pm
SFO
-
LIS
18h 20m
2 stops
$735Multiple Airlines
Booking Insights

KAYAK's insights & trends for Lisbon to San Francisco flights

Get data-powered insights and trends into flights from Lisbon to San Francisco to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Lisbon to San Francisco?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Lisbon to San Francisco departing in November.

What’s the cheapest day of the week to fly from Lisbon to San Francisco?

The average price of all round-trip flights from Lisbon to San Francisco clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to San Francisco on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Lisbon to San Francisco. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from Lisbon to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Lisbon to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Lisbon to San Francisco is February, where tickets cost $751 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,001 and $919 respectively.

Can I save money by flying with a layover from Lisbon to San Francisco?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $942 on average.

How far in advance should I book a flight from Lisbon to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Lisbon to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Lisbon to San Francisco, you should book around 3 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Lisbon to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on LIS

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonMay
Cheapest flight$625
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Lisbon to San Francisco

When to book flights from Lisbon to San Francisco

Are your dates flexible? Find out the best times to travel from Lisbon to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Lisbon to San Francisco: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Lisbon to San Francisco 
DeannaFlew with TAP AIR PORTUGAL
LIS
-
SFO
Jun 2026
Arrive 3 hrs before flight time to allow for new check in process. Facial recognition is now being used.
AmirFlew with TAP AIR PORTUGAL
LIS
-
SFO
Jul 2024
For any flight that's part of a Multi-City flight plan, don't miss it. Otherwise, all your remaining flights on that plan will be terminated.

FAQs for booking flights from Lisbon to San Francisco

  • What are the baggage policies for flights from Lisbon to San Francisco?

    If you are flying economy class from Lisbon to San Francisco, each airline operating this route will allow you to bring one carry-on bag and one personal item on board. Because this is a long-haul flight, the airlines will also allow one free checked bag. If you need to check more than one bag, however, it may be worth upgrading your seat, especially if you are flying TAP Air Portugal or British Airways, as they will offer you two free checked bags if you are flying in premium or business class.

  • What are some common layovers on the route from Lisbon to San Francisco?

    The airline you choose to fly with will determine your layovers. For example, Lufthansa has a layover in either Munich (MUC) or Frankfurt (FRA), British Airways has a layover in London (LHR), Swiss Airlines has a layover in Zurich (ZRH), Brussels Airlines has a layover in New York (EWR), American Airlines stops in either London (LHR) or Philadelphia (PHL), and KLM stops in Amsterdam (AMS).

  • How can I make my flight from Lisbon to San Francisco more sustainable?

    First of all, take public transport to the airport in Lisbon (LIS) and to Downtown San Francisco after you land at SFO. Next, consider booking a direct flight with TAP Air Portugal. Not only is TAP Air Portugal a sustainable airline, but this also cuts down on the amount of landings and takeoffs en route, which means less fuel consumed. Finally, pack light to reduce the weight on the plane.

  • What documents do I need to fly from Lisbon to San Francisco?

    American citizens flying from Lisbon to San Francisco will need their valid passport. Portuguese citizens will need a valid passport. Portuguese citizens will also need to apply in advance for an Electronic Travel Authorization, ESTA under the Visa Waiver Program.

  • How many flights are there between Lisbon and San Francisco per day?

    There is a maximum of 1 nonstop flight a day that takes off from Lisbon and lands in San Francisco, with an average flight time of 12h 35m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 4 flights.

  • What is the cheapest flight from Lisbon to San Francisco?

    In the last 5 days, the lowest price for a flight from Lisbon to San Francisco was $625 for a one-way ticket and $682 for a round-trip.

  • Do I need a passport to fly between Lisbon and San Francisco?

    A passport is required to fly from Lisbon to San Francisco.

  • Which airports will I be using when flying from Lisbon to San Francisco?

    When flying out of Lisbon you will be using Lisbon Humberto Delgado. You will be landing at San Francisco, also known as San Francisco.

  • Which aircraft models fly most regularly from Lisbon to San Francisco?

    The Airbus A330-900neo is the aircraft model that flies most regularly on the Lisbon to San Francisco flight route.

  • Which airline alliances offer flights from Lisbon to San Francisco?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Lisbon and San Francisco, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Lisbon to San Francisco?

    You can catch a nonstop flight from Lisbon to San Francisco on on Monday, Wednesday, Thursday, and Saturday.

  • Which is the best airline for flights from Lisbon to San Francisco, Delta or Air France?

    The two airlines most popular with KAYAK users for flights from Lisbon to San Francisco are Delta and Air France. With an average price for the route of $823 and an overall rating of 7.8, Delta is the most popular choice. Air France is also a great choice for the route, with an average price of $850 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Lisbon to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Lisbon to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Lisbon to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Lisbon is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Lisbon to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Lisbon with another airline. Booking your flights between Lisbon and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Lisbon to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Lisbon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Lisbon to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $792 or less one-way and $1,182 or less round-trip.
  • Lisbon, Portugal, is served by Humberto Delgado Airport (LIS) and is a hub for TAP Air Portugal, Ryanair, Iberia, Azores Airlines, and more. Aside from Lisbon, this airport also serves nearby cities such as Setubal and Mafra.
  • San Francisco, California is served by San Francisco International Airport (SFO) and is a hub for United Airlines, Alaska Airlines, SkyWest Airlines, and more. Besides San Francisco, this airport also serves other Northern Californian cities like Palo Alto, Berkeley, and Davis - home of the world-famous Dos Coyotes restaurant.
  • Those looking for the cheapest flight deals from Lisbon to San Francisco will almost always have two layovers along the way. The cheapest journeys on this route will also take a bit longer, so expect a travel time of 20 hours or more.
  • The flight from Lisbon to San Francisco is a long one, especially if you don’t have many layovers. In order to fly more comfortably, it may be worth considering upgrading your ticket to premium, business, or even first class after you’ve bought your ticket. This will guarantee you extra legroom, bedding, blankets, pillows, and more.
  • If you are landing at the San Francisco International Airport (SFO) late at night, you may want to book a hotel room nearby so you can rest before continuing your journey into San Francisco in the morning. SFO has the Grand Hyatt SFO onsite, but there are also plenty of other options nearby that offer free shuttles.

Prefer to fly direct from Lisbon to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lisbon Humberto Delgado to San Francisco.
Find which airlines fly direct from Lisbon Humberto Delgado Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Lisbon Humberto Delgado to San Francisco

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Thursday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Direct returns

San Francisco to Lisbon Humberto Delgado

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Thursday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Everything you need to know for your flight from Lisbon to San Francisco

Information on your arrival and departure airports