Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to San Francisco Bay Area from £313

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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from London to San Francisco Bay Area
Explore the most affordable flight options available from London to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Sat 6/1206:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Sat 17/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 17/11£430
Thu 4/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 8/1216:40SFO - LHR
2 stops15h 45mScandinavian Airlines
Deal found 17/11£434
Fri 5/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Sun 7/1216:40SFO - LHR
1 stop17h 00mScandinavian Airlines
Deal found 19/11£435
Mon 24/1106:00LHR - SFO
1 stop16h 35mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 18/11£436
Sat 6/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 12/116:40SFO - LHR
2 stops18h 10mScandinavian Airlines
Deal found 18/11£438
Wed 26/1106:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Wed 3/1216:35SFO - LHR
1 stop36h 05mTAP AIR PORTUGAL
Deal found 19/11£439
Sun 23/1110:40LGW - SFO
1 stop35h 55mTAP AIR PORTUGAL
Sat 29/1116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 19/11£439
Thu 4/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Wed 7/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 18/11£442
Sun 23/1113:40LHR - SFO
1 stop32h 55mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 18/11£442
Thu 4/1206:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 19/116:40SFO - LHR
1 stop15h 20mScandinavian Airlines
Deal found 19/11£445
Tue 2/1206:30STN - SFO
1 stop17h 05mMultiple Airlines
Tue 9/1217:20SFO - STN
1 stop20h 00mMultiple Airlines
Deal found 17/11£449
Tue 2/1209:00LTN - SFO
1 stop14h 35mMultiple Airlines
Tue 9/1217:20SFO - LTN
1 stop18h 45mMultiple Airlines
Deal found 17/11£455

Cheap flight deals from London to San Francisco Bay Area

Keep the following information in mind while searching for London to San Francisco Bay Area flight deals. Data was last updated 20 November 2025.

Round-trip from

£401

One-way from

£313

Popular in

July

Cheapest in

September

Average price

£465
Virgin Atlantic
  • Virgin Atlantic
  • 31/1-6/2
  • 2 total stops
  • 35h 20m total
  • London to San Francisco Bay Area
Search Deals
British Airways
  • British Airways
  • 17/2
  • 2 total stops
  • 39h 22m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to San Francisco Bay Area 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 20 November 2025.
Use the filters below to find and compare flights from London to San Francisco Bay Area that are best for you.

Fly from

London

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Thu 22/1

08:40-21:20

2 stops20h 40m

San Jose

Fri 30/1

06:20-07:50

2 stops17h 30m

£439

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Thu 19/3

06:20-23:53

2 stops24h 33m

Oakland

Sat 21/3

05:55-08:45

2 stops43h 50m

£442

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 17/3

06:20-16:34

2 stops17h 14m

Oakland

Sun 22/3

17:05-10:00

1 stop33h 55m

£442

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 17/3

06:20-23:53

2 stops24h 33m

Oakland

Sat 21/3

05:55-08:45

2 stops43h 50m

£442

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Thu 19/3

06:20-23:53

2 stops24h 33m

Oakland

Sun 22/3

17:05-10:00

1 stop33h 55m

£442

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Wed 18/3

06:20-16:34

2 stops17h 14m

Oakland

Sat 21/3

05:55-08:45

2 stops43h 50m

£442

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Tue 2/12

09:00-15:35

1 stop14h 35m

San Francisco

Tue 9/12

17:20-20:05

1 stop18h 45m

£455

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 12/1

21:25-14:30

2 stops49h 05m

San Francisco

Mon 26/1

16:35-15:45

1 stop15h 10m

£455

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 4/12

06:40-14:35

1 stop15h 55m

San Francisco

Thu 15/1

16:40-16:00

1 stop15h 20m

£461

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Sat 6/12

06:00-15:35

1 stop17h 35m

San Francisco

Wed 10/12

17:20-23:05

1 stop21h 45m

£467

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from London to San Francisco Bay Area

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

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

Currently, December is the cheapest month in which you can book a flight from London to San Francisco Bay Area (average of £346). Flying from London to San Francisco Bay Area in July is currently the most expensive (average of £468). 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 LON to XIH?

Find hourly flight availability from London to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2025.

When flying from London to San Francisco Bay Area, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight at midday.

What is the cheapest day to fly from London to San Francisco Bay Area?

Use this chart to determine the cheapest time to fly return from London to San Francisco Bay Area. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to San Francisco Bay Area flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to San Francisco Bay Area

Explore weekly flight availability from London to San Francisco Bay Area. 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 20 November 2025.

The most flights from LON to zzXIH are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated 20 November 2025.
Read reviews from past customers who have flown with KLM, Virgin Atlantic, andUnited Airlines from London to San Francisco Bay Area. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,412 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,022 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,579 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,534 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Entertainment

7.1

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to San Francisco Bay Area?

    There are many flights that can get you from London to San Francisco Bay Area in 15h 55m. Fly via Delta, TAP AIR PORTUGAL, or Scandinavian Airlines to get the fastest option. There are 5350 mi between London and San Francisco Bay Area. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to San Francisco Bay Area one-way?

    The cheapet airlines for a one-way flight from London to San Francisco Bay Area are British Airways (£313), Finnair (£336), and KLM (£337).

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

    While some choose either London Gatwick - San Francisco or London City - San Francisco, London Heathrow - San Francisco is the most popular route from London to San Francisco Bay Area.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to San Francisco Bay Area on time: Air New Zealand (84%), Air France (82%), Delta (82%).

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

    On average you can expect to pay £2,194 for a flight from London to San Francisco Bay Area. The cheapest flight overall is £330 while the most popular route, (London Heathrow - San Francisco) is currently priced at £365.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from London to San Francisco Bay Area (average of £346). Flying from London to San Francisco Bay Area in July is currently the most expensive (average of £468). 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 London to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Gatwick to Las Vegas flights
Gatwick to San Francisco flights
Stansted to Los Angeles flights
Heathrow to Ontario flights
London City to Las Vegas flights
London City to San Francisco flights
Heathrow to Santa Ana flights
Luton to Los Angeles flights
Heathrow to San Jose flights
Heathrow to Burbank flights
Heathrow to Oakland flights
Heathrow to San Diego flights
Stansted to San Francisco flights
Stansted to Las Vegas flights
Gatwick to Oakland flights
Luton to San Francisco flights
Gatwick to San Jose flights
Manchester to Las Vegas flights
Gatwick to Santa Ana flights
Gatwick to Burbank flights
Luton to Las Vegas flights
Manchester to Los Angeles flights
Heathrow to Long Beach flights
Gatwick to San Diego flights
London City to San Diego flights
Manchester to Santa Ana flights
Manchester to San Francisco flights
Manchester to Ontario flights
Gatwick to Sacramento flights
Edinburgh to San Francisco flights
Heathrow to Santa Rosa flights
Birmingham to San Francisco flights
Newcastle upon Tyne to Los Angeles flights
Manchester to Burbank flights
Edinburgh to Los Angeles flights
Heathrow to Sacramento flights
London City to Burbank flights
Birmingham to Las Vegas flights
Newcastle upon Tyne to Ontario flights
London City to Sacramento flights
London City to Santa Ana flights
Birmingham to Los Angeles flights
Stansted to San Diego flights
London City to Oakland flights
Newcastle upon Tyne to Santa Ana flights

Top 10 airlines flying from London to San Francisco Bay Area

Discover the top 10 airlines that operate flights from London to San Francisco Bay Area. 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 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£243Average£526FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£343Average£506FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£346Average£566FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£359Average£576FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£359Average£486FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£362Average£537FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£366Average£451FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Brussels AirlinesCheapest£373Average£490FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£379Average£501FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£379Average£460FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from London to San Francisco Bay Area via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to San Francisco Bay Area for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to San Francisco Bay Area from London? 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 London to San Francisco Bay Area become cheaper?

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.