London

$384+ Cheap flights from San Francisco (SFO) to London (LON)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
mar 26 — kwi 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to London with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Francisco to London are usually found in October or September, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Francisco to London

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to London (LON). 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 Marzec 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$599
(Cheapflightsfares)

One-way from

$384
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$691

Good round-trip deal

$710 or less

Good one-way deal

$467 or less
Provider with most accurate pricing for San Francisco-London (LON) flight deals.
Provider most trusted by Cheapflights users for San Francisco-London (LON) flights.
From San Francisco to London (LON)
One-way flight from San Francisco to London (LON)
Highest demand for flights based on searches. 20% potential increase in price ($195 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from San Francisco to London (LON).
Price to beat on a one-way flight from San Francisco to London (LON).

Find flight deals from San Francisco to London

Cheapest flights from San Francisco to London
Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Marzec 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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.
pon. 4/78:05 amSFO - LHR
1 stop14h 20mIberia
wt. 4/1510:45 amLHR - SFO
Nonstop11h 05mIberia
Deal found 3/19$599
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 5/32:18 pmSFO - LGW
1 stop36h 37mMultiple Airlines
ndz. 5/1110:55 amLGW - SFO
1 stop17h 32mMultiple Airlines
Deal found 3/19$600
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ndz. 10/197:40 pmSFO - LHR
1 stop14h 00mScandinavian Airlines
ndz. 10/267:30 pmLHR - SFO
1 stop30h 25mScandinavian Airlines
Deal found 3/20$601
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 4/77:40 pmSFO - STN
2 stops18h 30mMultiple Airlines
pon. 4/141:20 pmSTN - SFO
2 stops35h 10mMultiple Airlines
Deal found 3/20$604
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/20. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wt. 9/234:20 pmSFO - LGW
1 stop33h 25mTAP AIR PORTUGAL
śr. 10/154:25 pmLGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Deal found 3/20$605
This Booking.com deal was found by Cheapflights users on 3/20. 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.
wt. 5/68:00 pmSFO - LGW
1 stop16h 25mVueling
wt. 5/137:25 amLGW - SFO
1 stop18h 35mVueling
Deal found 3/20$606
This lastminute.com deal was found by Cheapflights users on 3/21. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ndz. 4/64:40 pmSFO - LHR
1 stop13h 35mVirgin Atlantic
wt. 4/226:15 amLHR - SFO
1 stop14h 35mVirgin Atlantic
Deal found 3/21$606
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ndz. 4/69:10 pmSFO - LGW
2 stops36h 40mSWISS
wt. 4/226:35 pmLGW - SFO
1 stop29h 35mSWISS
Deal found 3/20$607
This Gotogate deal was found by Cheapflights users on 3/21. 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.
ndz. 4/67:00 amSFO - LHR
1 stop22h 20mMultiple Airlines
wt. 4/228:45 amLHR - SFO
1 stop15h 25mMultiple Airlines
Deal found 3/21$609
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 4/77:40 pmSFO - LTN
2 stops17h 45mMultiple Airlines
pon. 4/1412:50 pmLTN - SFO
2 stops35h 40mMultiple Airlines
Deal found 3/20$609
This Iberia deal was found by Cheapflights users on 3/21. 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.
wt. 4/85:02 amSFO - LGW
2 stops21h 48mIberia
wt. 4/293:05 pmLGW - SFO
1 stop17h 05mIberia
Deal found 3/21$610
This American Airlines deal was found by Cheapflights users on 3/20. 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.
pon. 9/228:20 amSFO - LGW
2 stops17h 50mAmerican Airlines
wt. 9/3010:25 amLGW - SFO
2 stops20h 43mAmerican Airlines
Deal found 3/20$618

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to London 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 Marzec 21, 2025.
Use the filters below to find and compare flights from San Francisco to London that are best for you.

Fly from

San Francisco

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

pon. 4/7

8:05 am-6:25 am

1 stop14h 20m

London Heathrow

wt. 4/15

10:45 am-1:50 pm

Nonstop11h 05m

$599

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

sob. 5/3

2:18 pm-10:55 am

1 stop36h 37m

London Gatwick

ndz. 5/11

10:55 am-8:27 pm

1 stop17h 32m

$600

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

pon. 4/7

7:40 pm-5:40 pm

1 stop14h 00m

London Heathrow

pon. 4/14

9:05 pm-4:30 pm

2 stops27h 25m

$604

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

pon. 4/7

7:40 pm-10:10 pm

2 stops18h 30m

London Stansted

pon. 4/14

1:20 pm-4:30 pm

2 stops35h 10m

$604

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

wt. 5/6

8:00 pm-8:25 pm

1 stop16h 25m

London Gatwick

wt. 5/13

7:25 am-6:00 pm

1 stop18h 35m

$606

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

ndz. 4/6

7:05 am-8:50 am

1 stop17h 45m

London Heathrow

wt. 4/22

6:15 am-12:50 pm

1 stop14h 35m

$606

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

ndz. 4/6

9:10 pm-5:50 pm

2 stops36h 40m

London Gatwick

wt. 4/22

6:35 pm-4:10 pm

1 stop29h 35m

$607

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

ndz. 4/6

7:00 am-1:20 pm

1 stop22h 20m

London Heathrow

wt. 4/22

8:45 am-4:10 pm

1 stop15h 25m

$609

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

pon. 4/7

7:40 pm-9:25 pm

2 stops17h 45m

London Luton

pon. 4/14

12:50 pm-4:30 pm

2 stops35h 40m

$609

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

wt. 4/8

5:02 am-10:50 am

2 stops21h 48m

London Gatwick

wt. 4/29

3:05 pm-12:10 am

1 stop17h 05m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 60 results
1
2
3
...
6

Compare providers for flights from San Francisco to London

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 San Francisco to London in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice 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 San Francisco-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-London flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Francisco-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Francisco to London 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 San Francisco to London trip
Airlines
United Airlines

United's Polaris Class offers lie-flat seats, Saks bedding, and upscale amenities for long-haul flights.


United's Premium Plus offers extra legroom, upgraded meals, and priority check-in on international routes.

British Airways

BA's Club Suite offers privacy with solo pods and a door, ideal for long-haul comfort.


BA's World Traveller Plus offers extra width, legroom, and upgraded service in a dedicated cabin.

Virgin Atlantic

Virgin's Economy Delight offers extra legroom, priority boarding, and a checked bag included.


Virgin's Upper Class includes lie-flat beds and a four-course meal, enhancing long-haul comfort.

Lufthansa

Lufthansa's Allegris Economy offers enhanced comfort with slim seats and adjustable headrests.


Lufthansa's Premium Economy offers hard-shell seats with generous recline, ideal for long-haul comfort.

Read more about Lufthansaby Blane Bachelor
Airports
SFO

Save time by ordering meals for pickup from restaurants via the SFO2Go program during busy times.

Read more about SFOby Harriet Baskas
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

Read more about LHRby Ramsey Qubein
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines and 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
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Blane Bachelor

Blane Bachelor

Expert on Virgin Atlantic and Lufthansa

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

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

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco 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 San Francisco to London

How far ahead should I book a flight from San Francisco to London?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to London. Price data was last updated on March 14, 2025.

The price you pay for your flight from San Francisco to London may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Francisco to London?

Currently, November is the cheapest month in which you can book a flight from San Francisco to London (average of $661). Flying from San Francisco to London in June is currently the most expensive (average of $1,122). 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 SFO to LON?

Find hourly flight availability from San Francisco to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Marzec 21, 2025.

One of the essential ways to save on airfare from San Francisco to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 12% on airfare.

What is the cheapest day to fly from San Francisco to London?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to London flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to London

Explore weekly flight availability from San Francisco to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated Marzec 21, 2025.

The most flights from SFO to LON are scheduled on a Monday (32 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

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

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July 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 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated Marzec 21, 2025.
To help decide which airline to fly from San Francisco to London, see what other customers have to say about 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.
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Francisco to London?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to London. On average, San Francisco has 32 outbound flights to London per day from 19 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    Currently priced at $599, Iberia will fly you from San Francisco to London and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and Vueling - these airlines can fly you to your destination from $604 and $606, respectively. You may be able to fly from San Francisco to London for 22% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Vueling. According to our data, you can fly for as low as $387. Users have also found prices from $387 and $390 on British Airways and Scandinavian Airlines, respectively.

  • What are the most popular routes from San Francisco to London?

  • What are the most reliable airlines from San Francisco to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to London on time: United Airlines (86%), Iberia (86%), American Airlines (84%).

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

    On average you can expect to pay $2,901 for a flight from San Francisco to London. The cheapest flight overall is $394 while the most popular route, (San Francisco - London Heathrow) is currently priced at $554.

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

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

    Times Square, New York City Center, and Madison Square Garden are the most popular attractions in New York if you're in need of something to do during your layover. Times Square, New York City Center, and Madison Square Garden can be accessed by traveling approximately 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl. Travelers can book a car rental at New York John F Kennedy Intl for about $60 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Copenhagen?

    Tivoli, Kongens Nytorv, and Rådhuspladsen are currently the most popular points of interest in Copenhagen at the moment. Tivoli, Kongens Nytorv, and Rådhuspladsen can be accessed by traveling approximately 5.3 mi, 5.1 mi, and 5.2 mi, respectively from Kastrup Copenhagen. Travelers in need of a car in Copenhagen can rent one for about $36 per day.

  • What are points of interest worth seeing during a layover in Los Angeles?

    Most Los Angeles visitors opt to spend their time at Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live. Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live can be accessed by traveling approximately 12.5 mi, 11.7 mi, and 10.8 mi, respectively from Los Angeles. Travelers can book a car rental at Los Angeles for about $35 per day to make their sightseeing more efficient.

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

  • Can I find deals for flights from San Francisco to London that include hotel bookings?

    Yes. In addition to deals on San Francisco to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to London.

  • Can I find deals for business class flights from San Francisco to London?

    Yes. Cheapflights offers flight deals from San Francisco to London 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 San Francisco to London?

    Currently, November is the cheapest month in which you can book a flight from San Francisco to London (average of $661). Flying from San Francisco to London in June is currently the most expensive (average of $1,122). 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
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Bromley
Folkestone
Ilford
Aylesbury
Chelmsford

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.

Alternative routes for San Francisco to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from San Francisco to London

Discover the top 10 airlines that operate flights from San Francisco to London. 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 Marzec 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$316Average$577FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$428Average$535FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$465Average$660FlexibilityNo cancel feeOn-time76%
DeltaCheapest$554Average$878FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$555Average$742FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$557Average$812FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$567Average$761FlexibilityNo cancel feeOn-time72%
IberiaCheapest$572Average$675FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$582Average$837FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$584Average$1,070FlexibilityNo cancel feeOn-time62%
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.