United Kingdom

$276+ Cheap flights from San Francisco (SFO) to the United Kingdom

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
Apr 19 — Apr 261
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Cheap flight deals from San Francisco to United Kingdom

Keep the following information in mind while searching for San Francisco to United Kingdom flight deals. Data was last updated April 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$619
(Scandinavian Airlines)

One-way from

$276
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$676

Good round-trip deal

$724 or less

Good one-way deal

$474 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 United Kingdom
One-way flight from San Francisco to United Kingdom
Highest demand for flights based on searches. 18% potential increase in price ($180 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from San Francisco to United Kingdom.
Price to beat on a one-way flight from San Francisco to United Kingdom.

Find flight deals from San Francisco to United Kingdom

Cheapest flights from San Francisco to United Kingdom
Explore the most affordable flight options available from San Francisco to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 14, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 4/13. 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 4/157:40 pmSFO - LHR
2 stops17h 55mScandinavian Airlines
Wed 5/710:20 amLHR - SFO
1 stop14h 10mScandinavian Airlines
Deal found 4/13$619
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/912:09 amSFO - LGW
2 stops22h 11mMultiple Airlines
Sat 5/2410:45 amLGW - SFO
1 stop17h 05mMultiple Airlines
Deal found 4/13$620
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1011:25 amSFO - LHR
1 stop35h 05mMultiple Airlines
Mon 5/197:30 pmLHR - SFO
2 stops31h 30mMultiple Airlines
Deal found 4/14$620
This SWISS deal was found by Cheapflights users on 4/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/307:25 pmSFO - LHR
1 stop36h 55mSWISS
Mon 12/88:05 pmLHR - SFO
1 stop28h 20mSWISS
Deal found 4/14$621
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:30 pmSFO - LGW
1 stop14h 20mSWISS
Mon 5/196:35 pmLGW - SFO
1 stop29h 35mSWISS
Deal found 4/14$622
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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 8/184:35 pmSFO - GLA
1 stop17h 55mBritish Airways
Tue 8/269:15 amGLA - SFO
1 stop16h 10mBritish Airways
Deal found 4/13$622
This Mytrip deal was found by Cheapflights users on 4/13. 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.
Wed 5/77:30 pmSFO - LTN
2 stops17h 15mMultiple Airlines
Tue 5/139:50 pmLTN - SFO
2 stops28h 50mMultiple Airlines
Deal found 4/13$622
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:30 pmSFO - LCY
1 stop15h 15mSWISS
Tue 5/139:25 amLCY - SFO
1 stop14h 45mSWISS
Deal found 4/14$623
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/41:06 pmSFO - LHR
1 stop13h 24mIberia
Fri 5/2312:00 pmLHR - SFO
1 stop16h 19mIberia
Deal found 4/14$623
This Gurufare deal was found by Cheapflights users on 4/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:45 pmSFO - LGW
2 stops31h 00mTAP AIR PORTUGAL
Tue 9/164:25 pmLGW - SFO
1 stop30h 10mTAP AIR PORTUGAL
Deal found 4/14$626
This Gotogate deal was found by Cheapflights users on 4/13. 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.
Mon 4/288:20 amSFO - LHR
1 stop17h 40mAir Canada
Tue 5/138:45 amLHR - SFO
2 stops17h 55mAir Canada
Deal found 4/13$626
This Delta deal was found by Cheapflights users on 4/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/289:00 amSFO - LGW
1 stop17h 00mDelta
Thu 8/1412:00 pmLGW - SFO
1 stop17h 08mDelta
Deal found 4/14$627

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to United Kingdom 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 14, 2025.
Use the filters below to find and compare flights from San Francisco to the United Kingdom that are best for you.

Fly from

San Francisco

Fly to

United Kingdom

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 4/28

7:40 pm-5:40 pm

1 stop14h 00m

London Heathrow

Mon 5/5

7:05 am-4:30 pm

2 stops17h 25m

$619

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Fri 5/9

12:09 am-6:20 am

2 stops22h 11m

London Gatwick

Sat 5/24

10:45 am-7:50 pm

1 stop17h 05m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 5/10

11:25 am-6:30 am

1 stop35h 05m

London Heathrow

Mon 5/19

7:30 pm-7:00 pm

2 stops31h 30m

$620

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/23

7:30 pm-11:25 am

1 stop31h 55m

London Heathrow

Mon 4/28

5:10 pm-4:10 pm

1 stop31h 00m

$621

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Mon 8/18

4:35 pm-6:30 pm

1 stop17h 55m

Glasgow Intl

Tue 8/26

9:15 am-5:25 pm

1 stop16h 10m

$622

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 5/12

7:30 pm-5:50 pm

1 stop14h 20m

London Gatwick

Mon 5/19

6:35 pm-4:10 pm

1 stop29h 35m

$622

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Wed 5/7

7:30 pm-8:45 pm

2 stops17h 15m

London Luton

Tue 5/13

9:50 pm-6:40 pm

2 stops28h 50m

$622

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 5/4

1:06 pm-10:30 am

1 stop13h 24m

London Heathrow

Fri 5/23

12:00 pm-8:19 pm

1 stop16h 19m

$623

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Tue 5/6

7:30 pm-6:45 pm

1 stop15h 15m

London City

Tue 5/13

9:25 am-4:10 pm

1 stop14h 45m

$623

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 5/12

12:35 pm-11:50 am

2 stops15h 15m

London Heathrow

Tue 5/20

8:30 am-9:49 pm

1 stop21h 19m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 60 results
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Best time to book a flight from San Francisco to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 the United Kingdom

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

Currently, November is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of $661). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of $1,110). 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 GB?

Find hourly flight availability from San Francisco to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 14, 2025.

When flying from San Francisco to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Francisco to United Kingdom

Explore weekly flight availability from San Francisco to United Kingdom. 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 April 14, 2025.

The most flights from SFO to GB0 are scheduled on a Monday (37 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (37 on average).

Rainfall in United Kingdom by month

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

In terms of precipitation, rainfall in United Kingdom 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 United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated April 14, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air Transat from San Francisco to United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

7.9

Food

7.3

Overall

8.0

Crew

8.5

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 United Kingdom. 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 United Kingdom?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to United Kingdom. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $301. However, be on the lookout for offers from Vueling and Virgin Atlantic, as they are both options that can get you from San Francisco to United Kingdom for a low price.

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

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

    Before booking your flight to United Kingdom from San Francisco, check out the most reliable airlines to get you to your destination on time: Air Canada (85%), Austrian Airlines (85%), SWISS( 85%).

  • What are the cheapest flights from San Francisco to United Kingdom?

    On average you can expect to pay $2,840 for a flight from San Francisco to United Kingdom. The cheapest flight overall is $404 while the most popular route, (San Francisco - London Heathrow) is currently priced at $523.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to United Kingdom 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 United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of $661). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of $1,110). 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

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 United Kingdom

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

Top 10 airlines flying from San Francisco to United Kingdom

Discover the top 10 airlines that operate flights from San Francisco to United Kingdom. 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$325Average$692FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$428Average$540FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$465Average$662FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$527Average$899FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$541Average$795FlexibilityNo cancel feeOn-time79%
DeltaCheapest$554Average$1,022FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$562Average$883FlexibilityNo cancel feeOn-time71%
IberiaCheapest$572Average$672FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$584Average$1,104FlexibilityNo cancel feeOn-time62%
KLMCheapest$586Average$1,064FlexibilityNo cancel feeOn-time75%

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