Cheap flights from San Francisco to the United Kingdom from £151

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
23 Jul — 30 Jul1
1 adult

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 18 July 2025.

Round-trip from

£383

One-way from

£151

Popular in

June

Cheapest in

October

Average price

£674

Good round-trip deal

£370 or less

Good one-way deal

£308 or less
16/9-22/9
  • 16/9-22/9
  • 2 total stops
  • 69h 20m total
  • San Francisco to United Kingdom
JetBlue
  • JetBlue
  • 10/9
  • 1 total stop
  • 35h 30m total
  • San Francisco to United Kingdom
Highest demand for flights based on searches. 16% potential increase in price (£83 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in July 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 18 July 2025.

Tue 16/920:10SFO - BHX
1 stop31h 05mMultiple Airlines
Mon 22/911:55BHX - SFO
1 stop38h 15mMultiple Airlines
Deal found 17/7£383
Sun 14/919:30SFO - LCY
1 stop14h 00mSWISS
Tue 23/909:25LCY - SFO
1 stop14h 45mSWISS
Deal found 17/7£404
Tue 19/816:03SFO - LGW
1 stop34h 52mMultiple Airlines
Thu 11/910:45LGW - SFO
1 stop21h 14mMultiple Airlines
Deal found 17/7£404
Tue 11/1112:00SFO - LHR
2 stops42h 05mAustrian Airlines
Thu 20/1106:00LHR - SFO
2 stops23h 34mAustrian Airlines
Deal found 18/7£404
Thu 16/1016:20SFO - LGW
2 stops20h 05mTAP AIR PORTUGAL
Mon 20/1016:25LGW - SFO
1 stop29h 10mTAP AIR PORTUGAL
Deal found 17/7£405
Thu 16/1016:30SFO - LHR
Nonstop10h 25mBritish Airways
Fri 31/1015:25LHR - SFO
Nonstop11h 20mBritish Airways
Deal found 18/7£405
Tue 16/920:10SFO - LGW
1 stop18h 30mVueling
Tue 30/907:25LGW - SFO
1 stop18h 45mVueling
Deal found 17/7£406
Mon 15/919:40SFO - LGW
1 stop14h 10mSWISS
Wed 24/918:35LGW - SFO
1 stop29h 35mSWISS
Deal found 17/7£407
Wed 17/918:58SFO - LHR
1 stop14h 17mDelta
Fri 10/1016:25LHR - SFO
Nonstop11h 05mDelta
Deal found 18/7£407
Sun 21/908:40SFO - STN
2 stops28h 10mMultiple Airlines
Tue 30/918:40STN - SFO
2 stops29h 30mMultiple Airlines
Deal found 17/7£407
Mon 1/906:30SFO - LHR
1 stop19h 10mUnited Airlines
Mon 8/909:30LHR - SFO
1 stop35h 10mUnited Airlines
Deal found 18/7£407
Mon 1/913:45SFO - LCY
1 stop33h 30mVirgin Atlantic
Mon 8/920:10LCY - SFO
1 stop23h 35mVirgin Atlantic
Deal found 17/7£408

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 18 July 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 FranciscoBirmingham

SFO - BHX

SFOBHX

San Francisco

Tue 16/9

20:10-11:15

1 stop31h 05m

Birmingham

Mon 22/9

11:55-18:10

1 stop38h 15m

£383

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Sun 14/9

19:30-17:30

1 stop14h 00m

London City

Mon 22/9

18:05-16:10

1 stop30h 05m

£404

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 11/11

12:00-14:05

2 stops42h 05m

London Heathrow

Thu 20/11

06:00-21:34

2 stops23h 34m

£404

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 19/8

16:03-10:55

1 stop34h 52m

London Gatwick

Thu 11/9

10:45-23:59

1 stop21h 14m

£404

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 16/10

16:20-20:25

2 stops20h 05m

London Gatwick

Mon 20/10

16:25-13:35

1 stop29h 10m

£405

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 16/10

19:20-13:45

Nonstop10h 25m

London Heathrow

Tue 21/10

10:45-13:50

Nonstop11h 05m

£405

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 16/9

06:00-10:50

2 stops20h 50m

London Gatwick

Tue 23/9

20:40-20:55

2 stops32h 15m

£406

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 17/9

16:44-14:15

1 stop13h 31m

London Heathrow

Thu 25/9

11:15-14:15

Nonstop11h 00m

£407

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 15/9

19:40-17:50

1 stop14h 10m

London Gatwick

Wed 24/9

18:35-16:10

1 stop29h 35m

£407

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 1/9

06:30-09:40

1 stop19h 10m

London Heathrow

Mon 8/9

09:30-12:40

1 stop35h 10m

£407

Flights are sorted by cheapest return flights first.

Deals found on 18/7

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 return 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, January is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of £112). Flying from San Francisco to United Kingdom in August is currently the most expensive (average of £164). 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 18 July 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 18 July 2025.

The most flights from SFO to GB0 are scheduled on a Monday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (43 on average).

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 18 July 2025.
See what other customers who have flown with Delta, KLM, andAir Transat from San Francisco to the United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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.

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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.

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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.

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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.

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

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?

    If you book a flight to United Kingdom from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at £151. Iberia flights start at £231 while deals on Vueling start at £236 one-way.

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

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

    Consider Aeromexico (83%), Air France (82%) or Delta (82%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to United Kingdom.

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

    On average you can expect to pay £1,836 for a flight from San Francisco to United Kingdom. The cheapest flight overall is £269 while the most popular route, (San Francisco - London Heathrow) is currently priced at £135.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of £112). Flying from San Francisco to United Kingdom in August is currently the most expensive (average of £164). 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.

Top 9 airlines flying from San Francisco to United Kingdom

Discover the top 9 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 858,174 searches. Data last updated 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£370Average£463FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£389Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£392Average£407FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£403Average£558FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£428Average£543FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air CanadaCheapest£435Average£612FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£458Average£668FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£461Average£673FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£503Average£611FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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Certainly. Search results for flights to United Kingdom from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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