Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Lisbon to San Francisco from £423

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
1 Apr — 8 Apr1
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 2 March 2026.

Wed 15/414:00
LIS
-
SFO
1 stop35h 55m
LEVEL
Sun 19/419:40
SFO
-
LIS
1 stop17h 00m
LEVEL
Deal found 26/2£423
Mon 13/421:20
LIS
-
SFO
1 stop28h 35m
LEVEL
Sun 19/419:40
SFO
-
LIS
1 stop17h 00m
LEVEL
Deal found 1/3£441
Thu 16/405:00
LIS
-
SFO
1 stop14h 45m
Multiple Airlines
Mon 20/415:05
SFO
-
LIS
1 stop23h 20m
Multiple Airlines
Deal found 28/2£484
Thu 12/315:30
LIS
-
SFO
1 stop28h 20m
Multiple Airlines
Tue 17/316:40
SFO
-
LIS
1 stop17h 50m
Multiple Airlines
Deal found 27/2£485
Thu 9/405:00
LIS
-
SFO
1 stop14h 45m
Delta
Sat 25/407:05
SFO
-
LIS
1 stop19h 40m
Delta
Deal found 27/2£487
Wed 9/905:00
LIS
-
SFO
1 stop14h 45m
KLM
Wed 30/913:45
SFO
-
LIS
1 stop21h 00m
KLM
Deal found 27/2£488
Wed 9/905:00
LIS
-
SFO
2 stops21h 39m
Delta
Wed 30/911:05
SFO
-
LIS
2 stops19h 50m
Delta
Deal found 1/3£489
Thu 12/305:00
LIS
-
SFO
2 stops20h 43m
Delta
Tue 17/309:46
SFO
-
LIS
2 stops18h 34m
Delta
Deal found 27/2£489
Thu 23/409:10
LIS
-
SFO
1 stop16h 45m
LEVEL
Sun 3/519:40
SFO
-
LIS
1 stop28h 50m
LEVEL
Deal found 27/2£492
Fri 24/405:35
LIS
-
SFO
2 stops18h 32m
Delta
Mon 4/514:57
SFO
-
LIS
2 stops18h 53m
Delta
Deal found 27/2£493
Tue 7/409:50
LIS
-
SFO
2 stops22h 07m
Delta
Tue 14/405:59
SFO
-
LIS
2 stops21h 16m
Delta
Deal found 28/2£494

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 2 March 2026.

Round-trip from

£423

Popular in

July

Cheapest in

February

Average price

£647
LEVEL
  • LEVEL
  • 15/4-19/4
  • 2 total stops
  • 52h 55m total
  • Lisbon to San Francisco
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£23 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 March 2026
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 2 March 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

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 9/4

05:00-11:45

1 stop14h 45m

San Francisco

Sat 25/4

14:57-17:50

2 stops18h 53m

£484

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 13/4

11:55-00:27

2 stops20h 32m

San Francisco

Mon 20/4

15:05-17:50

1 stop18h 45m

£489

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 21/5

05:00-11:45

1 stop14h 45m

San Francisco

Sat 30/5

13:35-17:50

2 stops20h 15m

£526

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 24/3

05:00-16:55

1 stop18h 55m

San Francisco

Tue 31/3

21:05-22:45

1 stop17h 40m

£539

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 3/4

05:05-15:25

1 stop18h 20m

San Francisco

Thu 16/4

21:05-22:45

1 stop17h 40m

£540

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 7/4

15:35-11:45

1 stop28h 10m

San Francisco

Tue 14/4

15:05-22:25

1 stop23h 20m

£540

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 24/3

05:00-21:00

2 stops23h 00m

San Francisco

Tue 31/3

06:00-11:15

2 stops21h 15m

£544

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 26/3

11:55-07:36

2 stops26h 41m

San Francisco

Sun 12/4

00:45-08:20

2 stops23h 35m

£561

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sun 5/4

05:00-11:45

1 stop14h 45m

San Francisco

Mon 20/4

13:10-17:50

2 stops20h 40m

£569

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 10/7

07:20-19:18

2 stops19h 58m

£448

Flights are sorted by cheapest return flights first.

Deals found on 1/3

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?

Use this chart to determine the optimal time to book a return flight from Lisbon to San Francisco. Price data was last updated on 27 February 2026.

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 39 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, May is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of £414). Flying from Lisbon to San Francisco in March is currently the most expensive (average of £514). 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 2 March 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.

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 2 March 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
7.1
Good
2,155 reviews
Check prices

Overall

7.1

Entertainment

6.3

Food

6.2

Crew

7.8

Boarding

7.0

Comfort

7.1

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
7.1
Good
2,155 reviews
TAP AIR PORTUGAL
7.1
Good
2,155 reviews
Check prices

Overall

7.1

Entertainment

6.3

Food

6.2

Crew

7.8

Boarding

7.0

Comfort

7.1

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 LEVEL and Delta fly from Lisbon to San Francisco in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 13h 50m. 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 (£512), offers the cheapest pricing from Lisbon to San Francisco. Users have found that TAP AIR PORTUGAL is 16% 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 Etihad Airways (81%), JetBlue (81%) and TAP AIR PORTUGAL (81%).

  • 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, May is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of £414). Flying from Lisbon to San Francisco in March is currently the most expensive (average of £514). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2 March 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£512Average£686FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.