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Cheap flights from San Francisco Bay Area to London from £238

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
29 Apr — 6 May1
1 adult

Cheap flight deals from San Francisco Bay Area to London

Keep the following information in mind while searching for San Francisco Bay Area to London flight deals. Data was last updated 24 April 2025.

Round-trip from

£472

One-way from

£238

Popular in

June

Cheapest in

October

Average price

£509
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/10-15/10
  • 2 total stops
  • 63h 30m total
  • San Francisco Bay Area to London
15/7
  • 15/7
  • 3 total stops
  • 41h 15m total
  • San Francisco Bay Area to London
Highest demand for flights based on searches. 18% potential increase in price (£101 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

Find flight deals from San Francisco Bay Area to London

Cheapest flights from San Francisco Bay Area to London
Explore the most affordable flight options available from San Francisco Bay Area to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.

Wed 1/1016:20SFO - LGW
1 stop33h 25mTAP AIR PORTUGAL
Wed 15/1016:25LGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Deal found 22/4£472
Sat 10/514:18SFO - LGW
1 stop36h 37mMultiple Airlines
Wed 28/510:55LGW - SFO
1 stop16h 55mMultiple Airlines
Deal found 22/4£476
Mon 6/1019:40SFO - LHR
1 stop29h 40mScandinavian Airlines
Tue 14/1019:30LHR - SFO
1 stop29h 00mScandinavian Airlines
Deal found 23/4£476
Sun 27/407:00SFO - LHR
2 stops20h 50mAir Canada
Tue 13/509:30LHR - SFO
2 stops19h 32mAir Canada
Deal found 23/4£477
Sun 27/417:45SFO - LHR
1 stop13h 10mAer Lingus
Tue 13/509:50LHR - SFO
1 stop14h 00mAer Lingus
Deal found 23/4£478
Wed 30/419:30SFO - LGW
1 stop14h 25mSWISS
Wed 7/518:35LGW - SFO
2 stops53h 00mSWISS
Deal found 22/4£481
Tue 5/814:05SFO - LHR
1 stop13h 45mMultiple Airlines
Tue 19/810:50LHR - SFO
1 stop16h 10mMultiple Airlines
Deal found 23/4£481
Sun 27/407:10SFO - LHR
1 stop15h 35mVirgin Atlantic
Tue 13/516:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
Deal found 23/4£482
Sun 27/418:27SJC - LHR
2 stops31h 33mAir Canada
Tue 13/514:05LHR - SJC
2 stops31h 31mAir Canada
Deal found 23/4£486
Sun 10/811:30SFO - LGW
1 stop14h 30mDelta
Thu 21/812:00LGW - SFO
1 stop17h 08mDelta
Deal found 22/4£487
Tue 23/919:20SFO - LHR
Nonstop10h 25mBritish Airways
Thu 2/1010:45LHR - SFO
Nonstop11h 05mBritish Airways
Deal found 22/4£487
Tue 9/919:20SFO - LHR
Nonstop10h 25mAmerican Airlines
Tue 16/908:50LHR - SFO
1 stop15h 05mAmerican Airlines
Deal found 24/4£488

Cheapflights Fare Finder

Customise your flight search to find flights from San Francisco Bay Area 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 858,174 searches. Data last updated 24 April 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to London that are best for you.

Fly from

San Francisco Bay Area

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Wed 1/10

16:20-09:45

1 stop33h 25m

London Gatwick

Wed 15/10

16:25-14:30

1 stop30h 05m

£472

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sat 10/5

14:18-10:55

1 stop36h 37m

London Gatwick

Wed 28/5

10:55-19:50

1 stop16h 55m

£476

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 6/10

19:40-09:20

1 stop29h 40m

London Heathrow

Tue 14/10

19:30-16:30

1 stop29h 00m

£476

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 7/5

19:40-14:10

Nonstop10h 30m

London Heathrow

Wed 21/5

16:15-19:20

Nonstop11h 05m

£478

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 5/8

14:05-11:50

1 stop13h 45m

London Heathrow

Tue 19/8

10:50-19:00

1 stop16h 10m

£481

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 5/5

21:20-15:40

Nonstop10h 20m

London Heathrow

Tue 20/5

06:30-11:45

1 stop13h 15m

£482

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 2/9

18:45-22:55

2 stops20h 10m

London Heathrow

Tue 14/10

19:50-14:35

1 stop26h 45m

£486

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 10/8

11:30-10:00

1 stop14h 30m

London Gatwick

Fri 22/8

12:00-21:08

1 stop17h 08m

£487

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 23/9

19:20-13:45

Nonstop10h 25m

London Heathrow

Thu 2/10

10:45-13:50

Nonstop11h 05m

£487

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 9/9

19:20-13:45

Nonstop10h 25m

London Heathrow

Tue 16/9

08:50-15:55

1 stop15h 05m

£488

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 60 results
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Best time to book a flight from San Francisco Bay Area to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco Bay Area 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 Bay Area to London

What is the cheapest month to book a flight from San Francisco Bay Area to London?

Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £112). Flying from San Francisco Bay Area to London 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 XIH to LON?

Find hourly flight availability from San Francisco Bay Area 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 24 April 2025.

When flying from San Francisco Bay Area to London, 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 Bay Area to London

Explore weekly flight availability from San Francisco Bay Area 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 24 April 2025.

The most flights from zzXIH to LON 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 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 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 London when rainfall is around 40.0 mm.

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 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 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 24 April 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and KLM from San Francisco Bay Area to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

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

Entertainment

7.9

Crew

8.5

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

Entertainment

7.9

Crew

8.5

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

Entertainment

7.9

Crew

8.5

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

Entertainment

7.9

Crew

8.5

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

Entertainment

7.9

Crew

8.5

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 Bay Area to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from San Francisco Bay Area to London one-way?

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as £270. Users have also found prices from £296 and £298 on JetBlue and British Airways, respectively.

  • What are the most popular routes from San Francisco Bay Area to London?

  • What are the most reliable airlines from San Francisco Bay Area to London?

    No one likes to see their flight delayed. When booking a flight from San Francisco Bay Area to London consider choosing Air Canada (84%), Austrian Airlines (84%) or SWISS (84%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £2,259 for a flight from San Francisco Bay Area to London. The cheapest flight overall is £303 while the most popular route, (San Francisco - London Heathrow) is currently priced at £406.

  • Can I find deals for flights from San Francisco Bay Area to London that include hotel bookings?

    Yes. In addition to deals on San Francisco Bay Area to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco Bay Area 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 Bay Area to London.

  • Can I find deals for business class flights from San Francisco Bay Area to London?

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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 Bay Area to London?

    Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £112). Flying from San Francisco Bay Area to London 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

Travelling to a place near San Francisco Bay Area?

Book flights to San Francisco Bay Area if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Folkestone
Dartford
Watford
Chichester

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 Bay Area to London

Discover the top 9 airlines that operate flights from San Francisco Bay Area 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 858,174 searches. Data last updated 24 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£368Average£649FlexibilityNo cancel feeOn-time76%
Search Finnair flights
TAP AIR PORTUGALCheapest£395Average£411FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£426Average£542FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£432Average£541FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£435Average£536FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£439Average£618FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapest£455Average£551FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£459Average£704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£486Average£699FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco Bay Area to London?

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Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to London?

Cheapflights simply makes it quick and affordable to book flights from San Francisco Bay Area to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from San Francisco Bay Area to London with no change fees?

Need flexible booking options for your flight to London from San Francisco Bay Area? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco Bay Area to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from San Francisco Bay Area today and book when prices fit your budget.

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