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$568+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to San Francisco are usually found in February or April, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 November 29, 2025.

This United Airlines deal was found by Cheapflights users on 11/29. 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.
Fri 12/125:00 amLIS - SFO
1 stop15h 40mUnited Airlines
Mon 12/1512:43 amSFO - LIS
2 stops23h 27mUnited Airlines
Deal found 11/29$749
This Air Canada deal was found by Cheapflights users on 11/28. 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.
Wed 12/2411:00 amLIS - SFO
2 stops30h 38mAir Canada
Wed 12/317:30 amSFO - LIS
2 stops17h 25mAir Canada
Deal found 11/28$762
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Fri 12/1911:55 amLIS - SFO
2 stops19h 10mUnited Airlines
Thu 1/158:25 amSFO - LIS
1 stop16h 55mUnited Airlines
Deal found 11/28$763
This KLM deal was found by Cheapflights users on 11/29. 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.
Fri 12/511:25 amLIS - SFO
1 stop32h 25mMultiple Airlines
Tue 12/93:40 pmSFO - LIS
1 stop22h 45mMultiple Airlines
Deal found 11/29$765
This Delta deal was found by Cheapflights users on 11/29. 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.
Fri 12/55:00 amLIS - SFO
2 stops20h 58mDelta
Tue 12/912:25 pmSFO - LIS
2 stops21h 05mDelta
Deal found 11/29$769
This Trip.com deal was found by Cheapflights users on 11/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:10 amLIS - SFO
1 stop16h 40mLufthansa
Tue 12/168:25 amSFO - LIS
1 stop17h 50mLufthansa
Deal found 11/29$781
This Cheapflightsfares deal was found by Cheapflights users on 11/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/142:10 pmLIS - SFO
2 stops30h 30mLufthansa
Sun 12/289:40 pmSFO - LIS
1 stop17h 50mLufthansa
Deal found 11/27$784
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Sun 12/2111:55 amLIS - SFO
2 stops27h 45mUnited Airlines
Mon 12/299:40 pmSFO - LIS
1 stop17h 50mUnited Airlines
Deal found 11/29$789
This Cheapflightsfares deal was found by Cheapflights users on 11/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:25 pmLIS - SFO
2 stops29h 55mSWISS
Tue 12/305:25 pmSFO - LIS
2 stops34h 20mSWISS
Deal found 11/28$790
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Fri 12/1911:55 amLIS - SFO
2 stops27h 45mUnited Airlines
Sat 1/310:35 pmSFO - LIS
1 stop27h 40mUnited Airlines
Deal found 11/29$792
This Gotogate deal was found by Cheapflights users on 11/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:20 amLIS - SFO
2 stops31h 34mAir Canada
Mon 12/294:15 pmSFO - LIS
2 stops33h 05mAir Canada
Deal found 11/28$795

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 November 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$741
(Rumbo)

One-way from

$568
(eDestinos)

Popular in

January

Cheapest in

February

Average price

$792

Good round-trip deal

$850 or less

Good one-way deal

$874 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-San Francisco flight deals.
Search Deals
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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High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Lisbon Humberto Delgado to San Francisco.
Search Deals
Price to beat on a one-way flight from Lisbon Humberto Delgado to San Francisco.
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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 November 29, 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

Fri 12/12

5:00 am-8:10 pm

2 stops23h 10m

San Francisco

Tue 12/16

5:00 am-8:10 am

2 stops19h 10m

$749

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 1/9

5:00 am-7:19 pm

2 stops22h 19m

San Francisco

Tue 1/13

8:35 am-8:10 am

1 stop15h 35m

$749

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Thu 3/12

5:00 am-11:52 pm

2 stops25h 52m

San Francisco

Tue 3/24

11:57 am-5:30 pm

2 stops22h 33m

$756

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 3/11

5:00 am-4:03 pm

2 stops18h 03m

San Francisco

Sun 3/22

10:35 pm-9:00 am

2 stops27h 25m

$760

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 3/13

5:00 am-4:03 pm

2 stops18h 03m

San Francisco

Sun 3/22

10:35 pm-9:00 am

2 stops27h 25m

$760

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 1/21

7:00 pm-8:29 pm

2 stops33h 29m

San Francisco

Sat 1/24

7:00 am-4:05 pm

2 stops25h 05m

$772

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 1/16

11:15 am-4:05 pm

Nonstop12h 50m

San Francisco

Sat 1/31

4:35 pm-11:30 am

Nonstop10h 55m

$787

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Sun 12/21

11:55 am-7:40 am

2 stops27h 45m

San Francisco

Mon 12/29

9:40 pm-11:30 pm

1 stop17h 50m

$789

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 12/19

11:55 am-7:40 am

2 stops27h 45m

San Francisco

Sat 1/3

10:35 pm-10:15 am

1 stop27h 40m

$792

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 12/24

5:00 am-12:40 pm

1 stop15h 40m

San Francisco

Sat 12/27

9:40 pm-11:30 pm

1 stop17h 50m

$810

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 19 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-San Francisco flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 21, 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 $554). Flying from Lisbon to San Francisco in December is currently the most expensive (average of $682). 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 November 29, 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 in the afternoon, which can drop the price by up to 53% versus a flight at noon.

The best insider tips for Lisbon to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Lisbon to San Francisco trip
Airports
LIS

Expect long lines at immigration for non-Schengen flights, especially during morning and early afternoon departures.

Read more about LISby Ramsey Qubein
SFO

Use BART for an affordable 40-minute trip from SFO to downtown San Francisco. Purchase a Clipper Card for easy fare payment.

Read more about SFOby Harriet Baskas
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LIS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 November 29, 2025.
Read through reviews of airlines operating flights from Lisbon to San Francisco, such as Delta, United Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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
United Airlines
7.4
Good
9,057 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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
TAP AIR PORTUGAL
7.1
Good
2,076 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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
Lufthansa
6.8
Okay
7,598 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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
British Airways
6.7
Okay
7,545 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Crew

8.5

Overall

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?

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

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

    For as low as $760, United Airlines can have you in San Francisco from Lisbon in 18h 03m. Airlines will cover a distance of 5664 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Lisbon to San Francisco is LEVEL. Our recent data shows that you can find tickets from as low as $473 on this airline. Additional options worth looking into are British Airways and Delta, starting at $572 and $589 round-trip. You may be able to fly from Lisbon to San Francisco for 42% less than the average price by searching for these airlines.

  • 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 (53%), TAP AIR PORTUGAL (50%) and JetBlue (50%).

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

    The cheapest flight price from Lisbon to San Francisco is $710. On average you can expect to pay $1,542. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $523.

  • 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 Philadelphia.

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

    Philadelphia travelers tend to visit Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park more than anywhere else. Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park can be accessed by traveling approximately 6.1 mi, 5.7 mi, and 4.3 mi, respectively from Philadelphia. Those looking to explore during their layover in Philadelphia can rent a car from Philadelphia for about $53 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 London.

  • 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, 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 December is currently the most expensive (average of $682). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Daly City
Redwood City
Vallejo
Hollister
Foster City
Milpitas
Union City
Davis
Hayward
Burlingame

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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$473Average$623FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$572Average$718FlexibilityNo cancel feeOn-time70%
DeltaCheapest$589Average$759FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$648Average$873FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$657Average$829FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$668Average$934FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$732Average$896FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$741Average$837FlexibilityNo cancel feeOn-time76%

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