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Cheap flights from San Francisco to the United Kingdom from £193

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
16 Jul — 23 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 11 July 2025.

Round-trip from

£408

One-way from

£193

Popular in

June

Cheapest in

October

Average price

£676

Good round-trip deal

£406 or less

Good one-way deal

£304 or less
SWISS
  • SWISS
  • 8/9-25/9
  • 2 total stops
  • 29h 50m total
  • San Francisco to United Kingdom
Iberia
  • Iberia
  • 19/8
  • 1 total stop
  • 29h 15m total
  • San Francisco to United Kingdom
Highest demand for flights based on searches. 17% potential increase in price (£84 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 11 July 2025.

Mon 8/919:40SFO - LCY
1 stop15h 05mSWISS
Thu 25/909:25LCY - SFO
1 stop14h 45mSWISS
Deal found 11/7£408
Thu 21/816:20SFO - LGW
1 stop33h 25mTAP AIR PORTUGAL
Tue 26/816:25LGW - SFO
1 stop30h 10mTAP AIR PORTUGAL
Deal found 11/7£408
Thu 21/816:20SFO - LHR
1 stop21h 45mTAP AIR PORTUGAL
Sat 30/806:00LHR - SFO
1 stop19h 35mTAP AIR PORTUGAL
Deal found 10/7£408
Sun 3/817:40SFO - STN
1 stop16h 20mMultiple Airlines
Tue 19/808:15STN - SFO
1 stop15h 40mMultiple Airlines
Deal found 9/7£408
Mon 18/810:14SFO - LHR
1 stop13h 06mBritish Airways
Fri 29/816:55LHR - SFO
1 stop14h 42mBritish Airways
Deal found 10/7£408
Thu 4/919:30SFO - LGW
1 stop14h 20mSWISS
Tue 9/918:35LGW - SFO
1 stop29h 35mSWISS
Deal found 10/7£409
Thu 4/923:59SFO - LHR
2 stops27h 51mMultiple Airlines
Thu 18/906:00LHR - SFO
1 stop18h 10mMultiple Airlines
Deal found 10/7£409
Mon 8/905:50SFO - LGW
1 stop21h 00mMultiple Airlines
Fri 12/910:55LGW - SFO
1 stop21h 04mMultiple Airlines
Deal found 11/7£410
Wed 30/711:40SFO - LHR
1 stop14h 20mUnited Airlines
Thu 14/814:50LHR - SFO
2 stops16h 12mUnited Airlines
Deal found 9/7£411
Tue 19/817:40SFO - LTN
1 stop20h 30mMultiple Airlines
Tue 26/810:00LTN - SFO
1 stop13h 55mMultiple Airlines
Deal found 10/7£411
Thu 21/816:05SFO - LHR
Nonstop10h 20mDelta
Wed 27/809:00LHR - SFO
1 stop17h 15mDelta
Deal found 10/7£412
Sun 24/816:35SFO - LHR
1 stop13h 40mVirgin Atlantic
Sun 31/806:15LHR - SFO
1 stop14h 35mVirgin Atlantic
Deal found 10/7£416

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 11 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 FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Mon 8/9

19:40-18:45

1 stop15h 05m

London City

Thu 25/9

09:25-16:10

1 stop14h 45m

£408

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 21/8

16:20-09:45

1 stop33h 25m

London Gatwick

Tue 26/8

16:25-14:35

1 stop30h 10m

£408

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 21/8

16:20-22:05

1 stop21h 45m

London Heathrow

Sat 30/8

06:00-17:35

1 stop19h 35m

£408

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 3/8

17:40-18:00

1 stop16h 20m

London Stansted

Tue 19/8

08:15-15:55

1 stop15h 40m

£408

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 18/8

10:14-07:20

1 stop13h 06m

London Heathrow

Fri 29/8

16:55-23:37

1 stop14h 42m

£408

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Thu 4/9

19:30-17:50

1 stop14h 20m

London Gatwick

Tue 9/9

18:35-16:10

1 stop29h 35m

£409

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 4/9

23:59-11:50

2 stops27h 51m

London Heathrow

Thu 18/9

06:00-16:10

1 stop18h 10m

£409

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 8/9

05:50-10:50

1 stop21h 00m

London Gatwick

Fri 12/9

10:55-23:59

1 stop21h 04m

£410

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 30/7

11:40-10:00

1 stop14h 20m

London Heathrow

Thu 14/8

14:50-23:02

2 stops16h 12m

£411

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 19/8

17:40-22:10

1 stop20h 30m

London Luton

Tue 26/8

10:00-15:55

1 stop13h 55m

£411

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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 11 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 11 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 11 July 2025.
See what other customers who have flown with Delta, KLM, andAustrian Airlines 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.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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?

    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 Iberia, which is currently one of the cheapest options available, starting at £193. WestJet flights start at £232 while deals on Vueling start at £233 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 Air France (85%), Delta (85%) or Virgin Atlantic (85%) 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 £1,789 for a flight from San Francisco to United Kingdom. The cheapest flight overall is £266 while the most popular route, (San Francisco - London Heathrow) is currently priced at £313.

  • 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£386Average£402FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£401Average£612FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£402Average£557FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£422Average£536FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air CanadaCheapest£429Average£604FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£437Average£467FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£452Average£667FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£454Average£665FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£496Average£604FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco to United Kingdom?

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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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