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Cheap flights from Lisbon to San Francisco from £512

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Lisbon to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Lisbon to San Francisco
Explore the most affordable flight options available from Lisbon to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 May 2026.

Mon 18/519:45
LIS
-
SFO
1 stop24h 00m
Multiple Airlines
Tue 26/520:10
SFO
-
LIS
1 stop18h 15m
Multiple Airlines
Deal found 11/5£596
Sat 23/505:00
LIS
-
SFO
1 stop14h 45m
Delta
Tue 26/509:30
SFO
-
LIS
2 stops21h 25m
Delta
Deal found 9/5£597
Mon 18/505:00
LIS
-
SFO
1 stop14h 45m
Delta
Tue 26/514:43
SFO
-
LIS
2 stops19h 07m
Delta
Deal found 11/5£599
Sun 8/1116:55
LIS
-
SFO
1 stop29h 55m
Scandinavian Airlines
Tue 24/1116:45
SFO
-
LIS
1 stop15h 20m
Scandinavian Airlines
Deal found 9/5£599
Thu 21/505:00
LIS
-
SFO
1 stop14h 45m
Delta
Sat 30/509:30
SFO
-
LIS
2 stops21h 05m
Delta
Deal found 9/5£601
Mon 1/605:00
LIS
-
SFO
2 stops22h 20m
Delta
Mon 22/605:55
SFO
-
LIS
2 stops21h 20m
Delta
Deal found 9/5£602

Find flight deals from Lisbon to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 May 2026.

Round-trip from

£596

One-way from

£512

Popular in

June

Cheapest in

February

Average price

£623

Good one-way deal

£1,326 or less
Air France
  • Air France
  • 23/5-26/5
  • 2 total stops
  • 38h 05m total
  • Lisbon to San Francisco
Search Deals
Finnair
  • Finnair
  • 20/7
  • 2 total stops
  • 25h 24m total
  • Lisbon to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a one-way flight from Lisbon Humberto Delgado to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Lisbon to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 May 2026.
Use the filters below to find and compare flights from Lisbon to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 23/5

05:00-16:57

2 stops19h 57m

San Francisco

Tue 26/5

13:35-17:50

2 stops20h 15m

£601

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 3/10

19:45-11:45

1 stop24h 00m

San Francisco

Mon 12/10

20:10-22:25

1 stop18h 15m

£616

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 3/10

05:35-16:03

2 stops18h 28m

San Francisco

Mon 12/10

13:00-17:50

2 stops20h 50m

£624

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 29/10

05:00-13:40

1 stop15h 40m

San Francisco

Thu 12/11

07:15-10:15

2 stops19h 00m

£636

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 7/11

05:00-12:40

1 stop15h 40m

San Francisco

Sat 21/11

22:55-08:10

2 stops25h 15m

£638

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 6/6

05:00-11:45

1 stop14h 45m

San Francisco

Sun 14/6

23:57-08:00

1 stop24h 03m

£641

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 17/10

09:50-23:41

2 stops21h 51m

San Francisco

Tue 27/10

13:00-17:30

2 stops21h 30m

£653
Fastest return journey

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sat 30/5

05:00-15:56

2 stops18h 56m

San Francisco

Mon 8/6

08:45-08:00

1 stop15h 15m

£665

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 18/8

05:05-12:40

1 stop15h 35m

San Francisco

Thu 3/9

21:25-09:20

2 stops27h 55m

£697
Cheapest one-way

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 20/7

06:35-23:59

2 stops25h 24m

£512

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Lisbon to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lisbon with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Lisbon to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of £554). Flying from Lisbon to San Francisco in June is currently the most expensive (average of £654). 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.

What is the cheapest time of day to fly from LIS to SFO?

Find hourly flight availability from Lisbon to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lisbon to San Francisco as you normally would.

How much does it cost for a return flight from Lisbon to San Francisco?

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 13 May 2026.
Check out reviews from past customers who have flown with TAP AIR PORTUGAL from Lisbon to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.2
Good
2,250 reviews
Check prices

Boarding

7.0

Overall

7.2

Food

6.2

Crew

7.8

Comfort

7.1

Entertainment

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
TAP AIR PORTUGAL
7.2
Good
2,250 reviews
TAP AIR PORTUGAL
7.2
Good
2,250 reviews
Check prices

Boarding

7.0

Overall

7.2

Food

6.2

Crew

7.8

Comfort

7.1

Entertainment

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification

Related info for your journey

Find useful and relevant information for your journey from Lisbon to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Lisbon to San Francisco?

    Airlines like Delta and United Airlines fly from Lisbon to San Francisco in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 2h 48m. There are 5664 mi between Lisbon and San Francisco. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Lisbon to San Francisco round-trip?

    According to our current data, TAP AIR PORTUGAL (£510), offers the cheapest pricing from Lisbon to San Francisco. Users have found that TAP AIR PORTUGAL is 17% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Lisbon to San Francisco?

    The top 3 most reliable airlines when flying from Lisbon to San Francisco are JetBlue (64%), Etihad Airways (64%) and TAP AIR PORTUGAL (60%).

  • What are the cheapest flights from Lisbon to San Francisco?

    While on average a flight from Lisbon to San Francisco is generally £1,326, our data shows the cheapest flight currently is £1,326. When looking at the most popular route, (Lisbon Humberto Delgado - San Francisco), you can expect to pay £484 for that flight.

  • Can I find deals for flights from Lisbon to San Francisco that include hotel bookings?

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

  • How can I find direct flights from Lisbon to San Francisco?

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

  • Can I find deals for business class flights from Lisbon to San Francisco?

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

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

    Currently, February is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of £554). Flying from Lisbon to San Francisco in June is currently the most expensive (average of £654). 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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Top airline flying from Lisbon to San Francisco

Discover the top airline that operate flights from Lisbon to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£510Average£683FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Lisbon to San Francisco?

When you search for this flight from Lisbon to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Lisbon to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from Lisbon by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Lisbon to San Francisco with no change fees?

Need flexible booking options for your flight to San Francisco from Lisbon? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Lisbon to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Lisbon to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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