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Cheap flights from San Francisco to the United Kingdom from £223

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
20 Apr — 27 Apr1
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 15 April 2025.

Round-trip from

£470

One-way from

£223

Popular in

June

Cheapest in

October

Average price

£514

Good round-trip deal

£515 or less

Good one-way deal

£329 or less
Iberia
  • Iberia
  • 12/5-23/5
  • 1 total stop
  • 26h 32m total
  • San Francisco to United Kingdom
1/6
  • 1/6
  • 3 total stops
  • 39h 50m total
  • San Francisco to United Kingdom
Highest demand for flights based on searches. 18% potential increase in price (£103 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return 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 15 April 2025.

Tue 15/419:40SFO - LHR
2 stops17h 55mScandinavian Airlines
Wed 7/510:20LHR - SFO
1 stop14h 10mScandinavian Airlines
Deal found 13/4£470
Sat 10/511:25SFO - LHR
1 stop35h 05mMultiple Airlines
Mon 19/519:30LHR - SFO
2 stops31h 30mMultiple Airlines
Deal found 14/4£471
Sun 27/419:30SFO - LGW
1 stop14h 20mSWISS
Wed 7/518:35LGW - SFO
1 stop29h 35mSWISS
Deal found 14/4£472
Sun 30/1119:25SFO - LHR
1 stop36h 55mSWISS
Mon 8/1220:05LHR - SFO
1 stop28h 20mSWISS
Deal found 14/4£472
Mon 18/816:35SFO - GLA
1 stop17h 55mBritish Airways
Tue 26/809:15GLA - SFO
1 stop16h 10mBritish Airways
Deal found 14/4£473
Tue 6/519:30SFO - LCY
1 stop15h 15mSWISS
Tue 13/509:25LCY - SFO
1 stop14h 45mSWISS
Deal found 14/4£473
Sun 11/510:35SFO - LGW
1 stop16h 20mMultiple Airlines
Fri 23/510:55LGW - SFO
1 stop16h 55mMultiple Airlines
Deal found 14/4£473
Sun 27/411:55SFO - LHR
1 stop13h 00mDelta
Wed 21/516:25LHR - SFO
Nonstop11h 05mDelta
Deal found 14/4£473
Thu 8/519:30SFO - LHR
Nonstop10h 25mIberia
Thu 22/514:15LHR - SFO
Nonstop11h 00mIberia
Deal found 14/4£474
Tue 9/918:45SFO - LGW
2 stops31h 00mTAP AIR PORTUGAL
Tue 16/916:25LGW - SFO
1 stop30h 10mTAP AIR PORTUGAL
Deal found 14/4£476
Mon 28/408:20SFO - LHR
1 stop17h 40mAir Canada
Tue 13/508:45LHR - SFO
2 stops17h 55mAir Canada
Deal found 13/4£476
Sun 6/711:35SFO - LGW
1 stop14h 25mAir France
Thu 28/812:00LGW - SFO
1 stop17h 08mAir France
Deal found 14/4£476

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 15 April 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

Sun 27/4

18:20-18:50

2 stops16h 30m

London Heathrow

Wed 21/5

06:40-16:30

1 stop17h 50m

£470

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 10/5

11:25-06:30

1 stop35h 05m

London Heathrow

Mon 19/5

19:30-19:00

2 stops31h 30m

£471

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 27/4

19:30-17:50

1 stop14h 20m

London Gatwick

Wed 7/5

18:35-16:10

1 stop29h 35m

£472

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 10/5

19:40-16:25

2 stops36h 45m

London Heathrow

Thu 22/5

08:40-16:10

1 stop15h 30m

£472

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Mon 18/8

16:35-18:30

1 stop17h 55m

Glasgow Intl

Tue 26/8

09:15-17:25

1 stop16h 10m

£473

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 14/5

07:21-06:20

1 stop14h 59m

London Heathrow

Thu 22/5

14:45-21:00

1 stop14h 15m

£473

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 11/5

10:35-10:55

1 stop16h 20m

London Gatwick

Fri 23/5

10:55-19:50

1 stop16h 55m

£473

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Tue 6/5

19:30-18:45

1 stop15h 15m

London City

Tue 13/5

09:25-16:10

1 stop14h 45m

£473

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 9/9

18:45-09:45

2 stops31h 00m

London Gatwick

Tue 16/9

16:25-14:35

1 stop30h 10m

£476

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 25/8

16:00-10:25

Nonstop10h 25m

London Heathrow

Tue 16/9

08:45-16:10

1 stop15h 25m

£476

Flights are sorted by cheapest return flights first.

Deals found on 13/4

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 15 April 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 15 April 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 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 15 April 2025.
Read reviews from past customers who have flown Delta, EL AL and KLM from San Francisco to United Kingdom. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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.

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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.

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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.

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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.

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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 Vueling, which is currently one of the cheapest options available, starting at £248. WestJet flights start at £255 while deals on Virgin Atlantic start at £293 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 Canada (85%), Austrian Airlines (85%) or SWISS (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 £2,269 for a flight from San Francisco to United Kingdom. The cheapest flight overall is £306 while the most popular route, (San Francisco - London Heathrow) is currently priced at £397.

  • 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 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 858,174 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£372Average£655FlexibilityNo cancel feeOn-time76%
Search Finnair flights
TAP AIR PORTUGALCheapest£399Average£415FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£414Average£627FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£431Average£573FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£436Average£547FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air CanadaCheapest£443Average£624FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£451Average£808FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£464Average£688FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£491Average£713FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£532Average£615FlexibilityNo 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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