London

$355+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
Nov 25 — Dec 21
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Find cheap flights from San Francisco to London with Cheapflights

1. Tell us where you want to go
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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 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 November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

October

Round-trip from

$613
(TAP AIR PORTUGAL)

One-way from

$355
(Kiwi.com)
Provider with most accurate pricing for San Francisco-London (LON) flight deals.
Provider most trusted by Cheapflights users for San Francisco-London (LON) flights.
High demand for flights, 34% potential price rise
Best time to find cheap flights, 20% potential price drop
From San Francisco to London (LON)
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 November 20, 2024.

This United Airlines deal was found by Cheapflights users on 11/18. 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 12/111:00 pmSFO - LHR
1 stop13h 10mUnited Airlines
Wed 1/158:55 amLHR - SFO
1 stop15h 30mUnited Airlines
Deal found 11/18$613
This Scandinavian Airlines deal was found by Cheapflights users on 11/19. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:30 pmSFO - LHR
1 stop14h 30mScandinavian Airlines
Sat 3/16:40 amLHR - SFO
1 stop17h 00mScandinavian Airlines
Deal found 11/19$614
This Virgin Atlantic deal was found by Cheapflights users on 11/20. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/24:40 pmSFO - LHR
Nonstop10h 15mVirgin Atlantic
Tue 12/106:30 amLHR - SFO
1 stop13h 20mVirgin Atlantic
Deal found 11/20$615
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Fri 12/67:15 pmSFO - LGW
1 stop30h 35mTAP AIR PORTUGAL
Tue 12/109:20 pmLGW - SFO
2 stops25h 20mTAP AIR PORTUGAL
Deal found 11/18$616
This Delta deal was found by Cheapflights users on 11/18. 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.
Mon 12/24:40 pmSFO - LHR
Nonstop10h 15mDelta
Fri 12/136:30 amLHR - SFO
1 stop13h 20mDelta
Deal found 11/18$616
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:30 amSFO - LGW
3 stops27h 15mMultiple Airlines
Tue 12/176:40 amLGW - SFO
2 stops23h 11mMultiple Airlines
Deal found 11/19$617
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Mon 12/27:25 pmSFO - LGW
1 stop14h 25mSWISS
Tue 12/106:45 pmLGW - SFO
1 stop29h 40mSWISS
Deal found 11/19$618
This Gurufare deal was found by Cheapflights users on 11/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/25:30 pmSFO - LHR
Nonstop10h 30mIberia
Wed 12/253:20 pmLHR - SFO
Nonstop11h 25mIberia
Deal found 11/19$626
This British Airways deal was found by Cheapflights users on 11/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:30 pmSFO - LHR
Nonstop10h 30mBritish Airways
Fri 2/2811:45 amLHR - SFO
Nonstop11h 15mBritish Airways
Deal found 11/19$630
This Finnair deal was found by Cheapflights users on 11/18. 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 12/85:30 pmSFO - LHR
Nonstop10h 30mFinnair
Tue 1/1411:45 amLHR - SFO
Nonstop11h 15mFinnair
Deal found 11/18$631
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:30 amSFO - LHR
2 stops19h 20mAir Canada
Thu 12/121:00 pmLHR - SFO
1 stop28h 30mAir Canada
Deal found 11/19$633
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/17:25 pmSFO - LHR
1 stop14h 25mSWISS
Fri 12/136:00 amLHR - SFO
1 stop18h 25mSWISS
Deal found 11/18$634

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 1/15

4:35 pm-9:50 am

1 stop33h 15m

London Gatwick

Sat 1/25

10:10 am-2:45 pm

2 stops60h 35m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 12/31

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Thu 1/16

1:45 pm-4:25 pm

1 stop34h 40m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 1/16

5:30 pm-4:00 pm

1 stop14h 30m

London Heathrow

Wed 1/22

7:30 pm-3:40 pm

1 stop28h 10m

$614

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 12/2

4:40 pm-10:55 am

Nonstop10h 15m

London Heathrow

Tue 12/10

6:30 am-11:50 am

1 stop13h 20m

$615

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 12/10

8:30 am-7:45 pm

3 stops27h 15m

London Gatwick

Tue 12/17

6:40 am-9:51 pm

2 stops23h 11m

$617

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/1

7:20 pm-1:50 pm

Nonstop10h 30m

London Heathrow

Thu 4/24

10:10 am-1:15 pm

Nonstop11h 05m

$617

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 12/2

7:25 pm-5:50 pm

1 stop14h 25m

London Gatwick

Tue 12/10

6:45 pm-4:25 pm

1 stop29h 40m

$618

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 1/12

1:00 pm-10:10 am

1 stop13h 10m

London Heathrow

Tue 2/4

6:30 am-5:30 pm

2 stops19h 00m

$618

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 12/2

12:40 am-7:05 am

1 stop22h 25m

London Heathrow

Tue 12/10

6:30 am-11:50 am

1 stop13h 20m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 1/8

4:35 pm-5:30 pm

1 stop16h 55m

London Heathrow

Tue 2/25

6:30 pm-2:40 pm

1 stop28h 10m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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 November.
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 Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy1 starTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 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.

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 November 15, 2024.

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 $648). Flying from San Francisco to London in June is currently the most expensive (average of $1,089). 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 November 20, 2024.

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 13% 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. Saturday 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 November 20, 2024.

The most flights from SFO to LON are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 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 November 20, 2024.
To help decide which airline to fly from San Francisco to London, see what other customers have to say about Scandinavian Airlines, Virgin Atlantic and Delta. 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
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

8.0
Very good
8,756 reviews
8.0
Very good
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.8
Good
1,350 reviews
8.0
Very good
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.7
Good
1,300 reviews
8.0
Very good
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.6
Good
805 reviews
8.0
Very good
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 10

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

7.6
Good
1,637 reviews
8.0
Very good
8,756 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

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 31 outbound flights to London per day from 18 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 $613, TAP AIR PORTUGAL will fly you from San Francisco to London and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Scandinavian Airlines - these airlines can fly you to your destination from $613 and $614, 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 Scandinavian Airlines. According to our data, you can fly for as low as $360. Users have also found prices from $366 and $370 on TAP AIR PORTUGAL and Virgin Atlantic, 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: American Airlines (79%), Aer Lingus (79%), Alaska Airlines (79%).

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

    On average you can expect to pay $2,407 for a flight from San Francisco to London. The cheapest flight overall is $383 while the most popular route, (San Francisco - London Heathrow) is currently priced at $452.

  • 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 Dublin?

    Molly Malone Statue, St. Patrick's Cathedral, and Dublin Castle are the most popular attractions in Dublin if you're in need of something to do during your layover. Molly Malone Statue, St. Patrick's Cathedral, and Dublin Castle can be accessed by traveling approximately 5.8 mi, 6.1 mi, and 5.8 mi, respectively from Dublin. Travelers can book a car rental at Dublin for about $18 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 $43 per day.

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

    Most New York visitors opt to spend their time at Times Square, New York City Center, and Madison Square Garden. 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.

  • 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 $648). Flying from San Francisco to London in June is currently the most expensive (average of $1,089). 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

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$437Average$551FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$448Average$577FlexibilityNo cancel feeOn-time77%
FinnairCheapest$465Average$657FlexibilityNo cancel feeOn-time76%
SWISSCheapest$555Average$759FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$560Average$854FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$571Average$692FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$582Average$921FlexibilityNo cancel feeOn-time71%
KLMCheapest$586Average$831FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$587Average$882FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$591Average$819FlexibilityNo cancel feeOn-time67%
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