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$457+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SFO
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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1. Tell us where you want to go

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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 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$625
(Ticket)

One-way from

$457
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$771

Good round-trip deal

$806 or less

Good one-way deal

$623 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. 13% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 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 30, 2025.

This Ticket deal was found by Cheapflights users on 4/29. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:30 pmLIS - SFO
1 stop24h 15mMultiple Airlines
Mon 5/193:05 pmSFO - LIS
1 stop18h 45mMultiple Airlines
Deal found 4/29$625
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 9/95:00 amLIS - SFO
1 stop14h 45mDelta
Sat 9/201:00 pmSFO - LIS
2 stops20h 55mDelta
Deal found 4/29$650
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1411:05 amLIS - SFO
1 stop17h 05mBritish Airways
Sun 5/187:30 pmSFO - LIS
1 stop19h 35mBritish Airways
Deal found 4/28$665
This lol.travel deal was found by Cheapflights users on 4/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:00 amLIS - SFO
2 stops18h 55mAir Canada
Sun 11/307:30 amSFO - LIS
1 stop17h 50mAir Canada
Deal found 4/29$682
This SWISS deal was found by Cheapflights users on 4/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/265:55 amLIS - SFO
1 stop18h 15mSWISS
Mon 6/27:30 pmSFO - LIS
1 stop35h 15mSWISS
Deal found 4/28$697
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 9/176:15 amLIS - SFO
1 stop20h 45mUnited Airlines
Mon 1/266:35 amSFO - LIS
2 stops17h 35mUnited Airlines
Deal found 4/28$722
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:00 amLIS - SFO
1 stop14h 45mKLM
Fri 1/307:00 amSFO - LIS
1 stop17h 00mKLM
Deal found 4/28$725
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:05 amLIS - SFO
2 stops23h 52mLufthansa
Sat 1/3110:45 pmSFO - LIS
2 stops25h 25mLufthansa
Deal found 4/28$729
This Ovago deal was found by Cheapflights users on 4/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:00 amLIS - SFO
Nonstop12h 35mTAP AIR PORTUGAL
Sat 10/187:20 pmSFO - LIS
Nonstop11h 10mTAP AIR PORTUGAL
Deal found 4/29$737
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:05 amLIS - SFO
1 stop30h 56mAmerican Airlines
Tue 10/145:00 pmSFO - LIS
2 stops22h 00mAmerican Airlines
Deal found 4/28$749
This Air France deal was found by Cheapflights users on 4/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2010:00 amLIS - SFO
1 stop17h 09mAir France
Sun 6/298:25 pmSFO - LIS
1 stop18h 00mAir France
Deal found 4/29$753
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/118:45 pmLIS - SFO
1 stop27h 25mIberia
Thu 8/215:45 pmSFO - LIS
1 stop14h 20mIberia
Deal found 4/29$824

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 30, 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 9/16

6:35 am-4:10 pm

1 stop17h 35m

San Francisco

Thu 9/25

4:35 pm-11:05 pm

1 stop22h 30m

$642

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 9/9

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Tue 9/23

1:00 pm-5:55 pm

2 stops20h 55m

$650

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Tue 9/9

5:00 am-11:45 am

1 stop14h 45m

San Francisco

Tue 9/16

1:45 pm-6:40 pm

1 stop20h 55m

$656

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 5/14

11:05 am-8:10 pm

1 stop17h 05m

San Francisco

Sun 5/18

7:30 pm-11:05 pm

1 stop19h 35m

$665

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Mon 5/26

5:55 am-4:10 pm

1 stop18h 15m

San Francisco

Mon 6/2

7:30 pm-2:45 pm

1 stop35h 15m

$697

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 9/17

6:15 am-7:00 pm

1 stop20h 45m

San Francisco

Mon 1/26

6:35 am-8:10 am

2 stops17h 35m

$722

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 9/17

5:05 am-8:57 pm

2 stops23h 52m

San Francisco

Sat 1/31

10:45 pm-8:10 am

2 stops25h 25m

$729

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 9/12

11:25 am-9:44 am

2 stops30h 19m

San Francisco

Thu 1/29

8:40 am-9:20 am

1 stop16h 40m

$741

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Wed 7/30

11:05 am-10:01 am

1 stop30h 56m

San Francisco

Tue 10/14

5:00 pm-11:00 pm

2 stops22h 00m

$749

LisbonSan Francisco

LIS - SFO

LISSFO

Lisbon Humberto Delgado

Fri 6/20

10:00 am-7:09 pm

1 stop17h 09m

San Francisco

Sun 6/29

8:25 pm-10:25 pm

1 stop18h 00m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 23 results
1
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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 25, 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 30, 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 30, 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
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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
Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

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?

    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 Delta. Our recent data shows that you can find tickets from as low as $650 on this airline. Additional options worth looking into are British Airways and SWISS, starting at $675 and $713 round-trip. You may be able to fly from Lisbon to San Francisco for 22% less than the average price by searching for these airlines.

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

    $460 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on Vueling and TAP AIR PORTUGAL, with prices starting from $464 and $478, 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 (88%), Etihad Airways (77%) and TAP AIR PORTUGAL (75%).

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

    The cheapest flight price from Lisbon to San Francisco is $472. On average you can expect to pay $1,460. The most popular route, (Lisbon Humberto Delgado - San Francisco), can usually be booked for $628.

  • 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 $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 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
Livermore
South San Francisco
Turlock
Manteca
Fairfield
Richmond
Watsonville
Hollister
Newark
Milpitas
Antioch
Sausalito
Hayward
Alameda
Sunnyvale
Campbell
Daly City

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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$473Average$641FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$528Average$741FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$573Average$723FlexibilityNo cancel feeOn-time70%
IberiaCheapest$613Average$754FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$648Average$960FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$659Average$792FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$669Average$877FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$699Average$764FlexibilityNo cancel feeOn-time71%

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