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$454+ Cheap flights from Lisbon (LIS) to San Francisco (SFO)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Francisco are usually found in February or October, booked 83 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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 April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$647
(British Airways)

One-way from

$454
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$778

Good round-trip deal

$1,215 or less

Good one-way deal

$612 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-San Francisco flights.
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From Lisbon Humberto Delgado to San Francisco
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One-way flight from Lisbon Humberto Delgado to San Francisco
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Highest demand for flights based on searches. 14% potential increase in price ($146 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Lisbon Humberto Delgado to San Francisco.
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Price to beat on a one-way flight from Lisbon Humberto Delgado to San Francisco.
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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 April 15, 2025.

This British Airways deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2911:05 amLIS - SFO
1 stop17h 21mBritish Airways
Tue 5/67:30 pmSFO - LIS
1 stop19h 30mBritish Airways
Deal found 4/15$647
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/155:00 amLIS - SFO
1 stop14h 45mDelta
Thu 5/291:45 pmSFO - LIS
2 stops20h 05mDelta
Deal found 4/14$649
This KLM deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:30 pmLIS - SFO
1 stop24h 15mMultiple Airlines
Tue 4/293:05 pmSFO - LIS
1 stop15h 45mMultiple Airlines
Deal found 4/15$650
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/113:35 pmLIS - SFO
1 stop28h 10mKLM
Tue 6/241:45 pmSFO - LIS
1 stop25h 05mKLM
Deal found 4/13$651
This Virgin Atlantic deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/710:00 amLIS - SFO
1 stop18h 47mVirgin Atlantic
Sat 5/3110:45 pmSFO - LIS
1 stop25h 15mVirgin Atlantic
Deal found 4/14$675
This Iberia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/212:30 pmLIS - SFO
2 stops19h 40mIberia
Sat 5/175:45 pmSFO - LIS
1 stop21h 40mIberia
Deal found 4/14$690
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:35 amLIS - SFO
2 stops21h 55mAmerican Airlines
Tue 6/2411:15 amSFO - LIS
2 stops20h 15mAmerican Airlines
Deal found 4/13$692
This Lufthansa deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/15:05 amLIS - SFO
1 stop15h 35mLufthansa
Sun 5/49:05 pmSFO - LIS
1 stop16h 45mLufthansa
Deal found 4/14$695
This SWISS deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:55 amLIS - SFO
1 stop18h 15mSWISS
Mon 6/237:30 pmSFO - LIS
1 stop19h 50mSWISS
Deal found 4/13$704
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1611:25 amLIS - SFO
1 stop16h 11mUnited Airlines
Thu 10/305:15 amSFO - LIS
2 stops21h 05mUnited Airlines
Deal found 4/14$723
This Finnair deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:35 amLIS - SFO
2 stops22h 25mFinnair
Thu 5/295:45 pmSFO - LIS
1 stop21h 40mFinnair
Deal found 4/15$725
This Air Canada deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/911:25 amLIS - SFO
2 stops30h 20mAir Canada
Sun 6/2211:59 pmSFO - LIS
2 stops27h 06mAir Canada
Deal found 4/13$847

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated April 15, 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 4/29

11:05 am-8:26 pm

1 stop17h 21m

San Francisco

Tue 5/6

7:30 pm-11:00 pm

1 stop19h 30m

$647

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/15

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Thu 5/29

10:00 am-11:15 am

2 stops17h 15m

$649

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 6/11

3:35 pm-11:45 am

1 stop28h 10m

San Francisco

Tue 6/24

1:45 pm-10:50 pm

1 stop25h 05m

$651

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/15

6:35 am-4:10 pm

1 stop17h 35m

San Francisco

Thu 5/29

7:30 pm-11:05 pm

1 stop19h 35m

$661

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 5/7

10:00 am-8:47 pm

1 stop18h 47m

San Francisco

Sat 5/31

10:45 pm-8:00 am

1 stop25h 15m

$675

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 5/2

12:30 pm-12:10 am

2 stops19h 40m

San Francisco

Sat 5/17

5:45 pm-11:25 pm

1 stop21h 40m

$690

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 6/11

6:35 am-8:30 pm

2 stops21h 55m

San Francisco

Tue 6/24

11:15 am-3:30 pm

2 stops20h 15m

$692

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/1

5:05 am-12:40 pm

1 stop15h 35m

San Francisco

Sun 5/4

9:05 pm-9:50 pm

1 stop16h 45m

$695

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 6/12

5:55 am-4:10 pm

1 stop18h 15m

San Francisco

Mon 6/23

7:30 pm-11:20 pm

1 stop19h 50m

$704

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 5/15

6:35 am-9:00 pm

2 stops22h 25m

San Francisco

Thu 5/29

5:45 pm-11:25 pm

1 stop21h 40m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 23 results
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Compare providers for flights from Lisbon to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lisbon to San Francisco in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Lisbon-San Francisco flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Lisbon-San Francisco flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Lisbon-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-San Francisco flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Lisbon to San Francisco. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from Lisbon to San Francisco, you should look to book at least 83 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, January is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $276). Flying from Lisbon to San Francisco in June is currently the most expensive (average of $393). 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 April 15, 2025.

When flying from Lisbon to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 36% versus a flight in the morning.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 April 15, 2025.
Read through reviews of airlines operating flights from Lisbon to San Francisco, such as Delta, KLM and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
SWISS
7.5
Good
1,578 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
United Airlines
7.4
Good
8,658 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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?

    Flights from Lisbon Humberto Delgado to San Francisco have been viewed 1 times in the past calendar month.

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

    Our cheapest airline available from Lisbon to San Francisco is British Airways. Our recent data shows that you can find tickets from as low as $647 on this airline. Additional options worth looking into are Delta and KLM, starting at $649 and $651 round-trip. You may be able to fly from Lisbon to San Francisco for 23% less than the average price by searching for these airlines.

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

    $466 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on TAP AIR PORTUGAL and Vueling, with prices starting from $471 and $497, respectively.

  • 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 (92%), Etihad Airways (80%) and TAP AIR PORTUGAL (78%).

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

    The cheapest flight price from Lisbon to San Francisco is $453. On average you can expect to pay $1,453. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $649.

  • Where are the most common layover locations when flying from Lisbon to San Francisco?

    The most popular layover on flights from Lisbon to San Francisco is London.

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Piccadilly Circus, and Buckingham Palace more than anywhere else. Hyde Park, Piccadilly Circus, and Buckingham Palace can be accessed by traveling approximately 12.5 mi, 14.1 mi, and 13.7 mi, respectively from London Heathrow. Those looking to explore during their layover in London can rent a car from London Heathrow for about $50 per day.

  • Where are the least popular layover locations for Lisbon to San Francisco flights?

    Lisbon to San Francisco flights that have layovers will least frequently stop in Philadelphia.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Lisbon to San Francisco (average of $276). Flying from Lisbon to San Francisco in June is currently the most expensive (average of $393). 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

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Roseville
Mountain View
Santa Cruz
Turlock
South San Francisco
Fairfield
Manteca
Sausalito
Richmond
Watsonville
Hollister
Milpitas
Antioch
Vallejo
Newark
Hayward
Alameda
Sunnyvale
Livermore
Campbell

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Lisbon to San Francisco

Discover the top 8 airlines 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 2,558,603 searches. Data last updated April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$473Average$641FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$528Average$758FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$573Average$722FlexibilityNo cancel feeOn-time70%
IberiaCheapest$613Average$754FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$648Average$964FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$659Average$837FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$669Average$876FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$699Average$764FlexibilityNo cancel feeOn-time71%

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