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Cheap flights from Lisbon to San Francisco from £389

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
21 Jul — 28 Jul1
1 adult

Cheap 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 16 July 2025.

Round-trip from

£510

One-way from

£389

Popular in

August

Cheapest in

February

Average price

£667
Delta
  • Delta
  • 16/9-4/12
  • 2 total stops
  • 30h 05m total
  • Lisbon to San Francisco
8/10
  • 8/10
  • 1 total stop
  • 19h 15m total
  • Lisbon to San Francisco
Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Lisbon to San Francisco

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 16 July 2025.

Tue 16/905:00LIS - SFO
1 stop14h 45mDelta
Thu 4/1213:00SFO - LIS
2 stops20h 30mDelta
Deal found 16/7£510
Wed 17/911:40LIS - SFO
1 stop32h 05mMultiple Airlines
Thu 4/1215:50SFO - LIS
1 stop15h 20mMultiple Airlines
Deal found 16/7£512
Tue 9/911:40LIS - SFO
1 stop32h 05mKLM
Tue 16/907:00SFO - LIS
1 stop17h 00mKLM
Deal found 16/7£518
Wed 10/907:20LIS - SFO
2 stops24h 39mBritish Airways
Sun 14/916:37SFO - LIS
2 stops22h 28mBritish Airways
Deal found 16/7£519
Thu 28/815:45LIS - SFO
1 stop32h 25mSWISS
Wed 10/919:30SFO - LIS
1 stop19h 50mSWISS
Deal found 16/7£531
Wed 10/905:05LIS - SFO
1 stop15h 35mLufthansa
Mon 26/114:40SFO - LIS
1 stop16h 10mLufthansa
Deal found 15/7£533
Thu 20/1105:00LIS - SFO
1 stop15h 40mUnited Airlines
Wed 11/200:32SFO - LIS
3 stops23h 23mUnited Airlines
Deal found 15/7£542

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 16 July 2025.
Use the filters below to find and compare flights from Lisbon to San Francisco that are best for you.

Fly from

Lisbon

Fly to

San Francisco

Route

Depart

Return

Price

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 16/9

05:00-11:45

1 stop14h 45m

San Francisco

Thu 4/12

13:00-17:30

2 stops20h 30m

£510

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 17/9

11:40-11:45

1 stop32h 05m

San Francisco

Thu 4/12

15:50-15:10

1 stop15h 20m

£512

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 9/9

11:40-11:45

1 stop32h 05m

San Francisco

Tue 16/9

07:00-08:00

1 stop17h 00m

£518

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/9

07:20-23:59

2 stops24h 39m

San Francisco

Sun 14/9

16:37-23:05

2 stops22h 28m

£519

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 28/8

15:45-16:10

1 stop32h 25m

San Francisco

Wed 10/9

19:30-23:20

1 stop19h 50m

£531

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 10/9

05:05-12:40

1 stop15h 35m

San Francisco

Mon 26/1

14:40-14:50

1 stop16h 10m

£533

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 20/11

05:00-12:40

1 stop15h 40m

San Francisco

Wed 11/2

00:32-07:55

3 stops23h 23m

£542

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 8/10

09:35-20:50

1 stop19h 15m

£389

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 25/8

11:05-23:18

1 stop20h 13m

£396

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sun 17/8

06:35-20:51

2 stops22h 16m

£464

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 15 results
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?

Use this chart to determine the optimal time to book a return flight from Lisbon to San Francisco. Price data was last updated on 11 July 2025.

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 87 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 £538). Flying from Lisbon to San Francisco in July is currently the most expensive (average of £803). 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 16 July 2025.

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.

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 16 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andFinnair 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.

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 popular is this Lisbon to San Francisco flight route?

  • What are the cheapest airlines flying from Lisbon to San Francisco round-trip?

    According to our current data, Delta (£510), KLM (£518), and British Airways (£519) offers the cheapest pricing from Lisbon to San Francisco. Users have found that Delta is 16% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Lisbon to San Francisco one-way?

    One-way options have recently been found by users for as low as £396 on British Airways. Other airlines that offer cheap prices include Finnair from £464 and Delta from £513 one-way.

  • 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 Etihad Airways (79%), JetBlue (77%) and TAP AIR PORTUGAL (77%).

  • 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 £538). Flying from Lisbon to San Francisco in July is currently the most expensive (average of £803). 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
Vallejo
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City

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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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