London

$263+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
Jan 22 — Jan 291
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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
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The best prices from San Francisco to London are usually found in October or September, booked 20 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 January 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$598
(French Bee)

One-way from

$266
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$689
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)
High demand for flights, 21% potential price rise
Best time to find cheap flights, 4% potential price drop
Average for round-trip flights in January 2025

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 January 17, 2025.

This French Bee deal was found by Cheapflights users on 1/15. 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 French Bee is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/307:55 pmSFO - LGW
1 stop15h 30mMultiple Airlines
Wed 2/57:55 amLGW - SFO
1 stop20h 15mMultiple Airlines
Deal found 1/15$598
This Cheapflightsfares deal was found by Cheapflights users on 1/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2210:40 amSFO - LHR
1 stop13h 55mIberia
Wed 1/2911:45 amLHR - SFO
Nonstop11h 15mIberia
Deal found 1/15$598
This Cheapflightsfares deal was found by Cheapflights users on 1/16. 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.
Thu 3/204:05 pmSFO - LCY
1 stop17h 05mITA Airways
Wed 3/264:40 pmLCY - SFO
1 stop28h 25mITA Airways
Deal found 1/16$599
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/245:40 pmSFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Thu 4/102:50 pmLGW - SFO
1 stop31h 45mTAP AIR PORTUGAL
Deal found 1/15$599
This Mytrip deal was found by Cheapflights users on 1/16. 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.
Sun 3/25:30 pmSFO - STN
2 stops21h 25mMultiple Airlines
Sun 3/912:20 pmSTN - SFO
2 stops35h 20mMultiple Airlines
Deal found 1/16$599
This Cheapflightsfares deal was found by Cheapflights users on 1/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/48:40 pmSFO - LHR
Nonstop10h 35mBritish Airways
Wed 3/123:20 pmLHR - SFO
Nonstop11h 25mBritish Airways
Deal found 1/15$600
This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/84:40 pmSFO - LHR
1 stop16h 50mTAP AIR PORTUGAL
Fri 3/216:00 amLHR - SFO
1 stop18h 15mTAP AIR PORTUGAL
Deal found 1/15$601
This Scandinavian Airlines deal was found by Cheapflights users on 1/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:40 pmSFO - LHR
1 stop14h 00mScandinavian Airlines
Tue 10/710:20 amLHR - SFO
1 stop14h 10mScandinavian Airlines
Deal found 1/15$602
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/265:20 pmSFO - LTN
1 stop15h 25mMultiple Airlines
Tue 2/119:00 amLTN - SFO
1 stop14h 30mMultiple Airlines
Deal found 1/14$604
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/94:40 pmSFO - LHR
Nonstop10h 15mDelta
Thu 2/206:30 amLHR - SFO
1 stop13h 20mDelta
Deal found 1/15$612
This Gotogate deal was found by Cheapflights users on 1/16. 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.
Sun 2/93:25 pmSFO - LHR
1 stop22h 00mVirgin Atlantic
Tue 2/256:30 amLHR - SFO
1 stop13h 20mVirgin Atlantic
Deal found 1/16$614
This Finnair deal was found by Cheapflights users on 1/15. 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.
Sun 1/265:30 pmSFO - LHR
Nonstop10h 30mFinnair
Tue 2/1111:45 amLHR - SFO
Nonstop11h 15mFinnair
Deal found 1/15$618

Find flights from San Francisco to London within your budget

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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 1/30

7:55 pm-7:25 pm

1 stop15h 30m

London Gatwick

Wed 2/5

7:55 am-8:10 pm

1 stop20h 15m

$598

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 1/29

10:40 am-8:35 am

1 stop13h 55m

London Heathrow

Wed 2/5

11:45 am-3:00 pm

Nonstop11h 15m

$598

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Thu 3/6

3:05 pm-4:10 pm

1 stop17h 05m

London City

Wed 3/12

4:40 pm-2:05 pm

1 stop28h 25m

$599

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 3/24

5:40 pm-3:45 pm

1 stop15h 05m

London Gatwick

Thu 4/10

2:50 pm-2:35 pm

1 stop31h 45m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 1/26

4:40 pm-10:55 am

Nonstop10h 15m

London Heathrow

Tue 2/11

6:30 am-11:50 am

1 stop13h 20m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 3/4

8:40 pm-3:15 pm

Nonstop10h 35m

London Heathrow

Wed 3/12

3:20 pm-7:45 pm

Nonstop11h 25m

$600

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 3/8

4:40 pm-5:30 pm

1 stop16h 50m

London Heathrow

Fri 3/21

6:00 am-5:15 pm

1 stop18h 15m

$601

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 2/9

5:30 pm-4:00 pm

1 stop14h 30m

London Heathrow

Mon 2/17

6:40 am-3:40 pm

1 stop17h 00m

$602

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 3/6

3:05 pm-12:40 am

2 stops25h 35m

London Stansted

Mon 3/17

9:35 am-2:05 pm

2 stops35h 30m

$604

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 2/9

4:40 pm-10:55 am

Nonstop10h 15m

London Heathrow

Thu 2/20

6:30 am-11:50 am

1 stop13h 20m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 60 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
FlightnetworkPrice Accuracy2 starsTrust Score*1 star
KAYAKPrice Accuracy1 starTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Francisco-London flight deals on Cheapflights vs. AranGrant >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 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 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

Find out what our experts recommend to make the most of your San Francisco to London trip
Airlines
United Airlines

Polaris Business Class includes lie-flat seats and Saks Fifth Avenue bedding.


Premium Plus offers bigger seats with extra legroom and upgraded food.

British Airways

Club Suite offers solo pods with a door for privacy on A350 aircraft.


World Traveller Plus offers extra seat width and legroom in a dedicated cabin.

Virgin Atlantic

Upper Class offers lie-flat beds and a four-course meal onboard.


Economy Delight includes extra legroom and priority boarding.

Lufthansa

Allegris cabins offer innovative seat cooling and heating features.


Premium economy features hard-shell seats allowing recline without disturbing others.

Read more about Lufthansaby Blane Bachelor
Delta

Delta One offers 180-degree flat-bed seats with premium food and drinks.


Free Wi-Fi on long-haul routes for SkyMiles members is a key benefit.

Read more about Deltaby Harriet Baskas
American Airlines

Flagship First offers 21.8” wide seats with a work desk and fully flat bed.


Flagship Business class features 20” wide seats converting to a 6’ 7” lay-flat bed.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines and Delta

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
Marisa Garcia

Marisa Garcia

Expert on American Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more

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.

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.

Travel insights for flights from San Francisco to London

Get recent, data-driven insights about flights from San Francisco to London including ideal travel times, pricing trends, and more.

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 January 10, 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 20 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 $1,137). 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 January 17, 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 evening 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 March 3, 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. Thursday evenings 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 January 17, 2025.

The most flights from SFO to LON are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 January 17, 2025.
To help decide which airline to fly from San Francisco to London, see what other customers have to say about British Airways, JetBlue and Virgin Atlantic. 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
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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

8.0
Very good
8,511 reviews
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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

7.8
Good
1,339 reviews
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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

7.6
Good
1,285 reviews
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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

7.5
Good
1,598 reviews
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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

7.5
Good
664 reviews
8.0
Very good
8,511 reviews

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Reviews

1 / 10

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 30 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 $598, 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 ITA Airways and TAP AIR PORTUGAL - these airlines can fly you to your destination from $599 and $599, respectively. You may be able to fly from San Francisco to London for 24% 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 WestJet. According to our data, you can fly for as low as $267. Users have also found prices from $340 and $350 on JetBlue and Vueling, 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: Air Canada (85%), Austrian Airlines (85%), SWISS (85%).

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

    On average you can expect to pay $2,365 for a flight from San Francisco to London. The cheapest flight overall is $395 while the most popular route, (San Francisco - London Heathrow) is currently priced at $502.

  • 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 $69 per day to make their sightseeing more efficient.

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

    Hollywood Bowl, Hollywood Walk of Fame, and L.A. Live are currently the most popular points of interest in Los Angeles at the moment. 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 in need of a car in Los Angeles can rent one for about $41 per day.

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

    Most Lisbon visitors opt to spend their time at Chiado, Centro Cultural de Belém, and Praça do Príncipe Real. Chiado, Centro Cultural de Belém, and Praça do Príncipe Real can be accessed by traveling approximately 4.5 mi, 6.9 mi, and 4.2 mi, respectively from Lisbon Humberto Delgado. Travelers can book a car rental at Lisbon Humberto Delgado for about $18 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 $1,137). 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
Hayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Canterbury
Gatwick
Horley
Milton Keynes
Dover
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Orpington
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Browse thousands of different options on Cheapflights for your next trip

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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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$428Average$546FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$448Average$585FlexibilityNo cancel feeOn-time77%
FinnairCheapest$531Average$657FlexibilityNo cancel feeOn-time76%
SWISSCheapest$541Average$749FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$557Average$902FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$572Average$683FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$582Average$842FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$582Average$920FlexibilityNo cancel feeOn-time71%
KLMCheapest$586Average$776FlexibilityNo cancel feeOn-time75%
DeltaCheapest$591Average$904FlexibilityNo cancel feeOn-timeN/A
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