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Cheap flights from London to San Francisco from ₹ 43,985

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
23 Jan — 30 Jan1
1 adult

The best prices from London to San Francisco are usually found in February or November, booked 83 days in advance, depart on a Sunday or Wednesday and return on a Tuesday

Cheap flight deals from London to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 January 2025.

Round-trip from

₹ 46,323

One-way from

₹ 43,985

Popular in

July

Cheapest in

February

Average price

₹ 54,635
United Airlines
  • United Airlines
  • 14/2-23/2
  • 1 total stop
  • 46h 22m total
  • London to San Francisco
WestJet
  • WestJet
  • 5/2
  • 1 total stop
  • 30h 16m total
  • London to San Francisco
High demand for flights, 18% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in January 2025

Find flight deals from London to San Francisco

Cheapest flights from London to San Francisco
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 January 2025.

Fri 14/218:00LHR - SFO
1 stop35h 47mUnited Airlines
Sun 23/217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 18/1₹ 46,323
Fri 28/221:05LHR - SFO
2 stops26h 35mScandinavian Airlines
Fri 7/317:30SFO - LHR
2 stops37h 05mScandinavian Airlines
Deal found 18/1₹ 46,410
Sun 23/306:55LGW - SFO
2 stops41h 30mSWISS
Mon 31/319:05SFO - LGW
1 stop14h 45mSWISS
Deal found 18/1₹ 46,410
Sun 2/206:20LHR - SFO
1 stop14h 50mDelta
Mon 10/216:40SFO - LHR
Nonstop10h 15mDelta
Deal found 17/1₹ 46,583
Thu 13/210:10LGW - SFO
2 stops60h 45mTAP AIR PORTUGAL
Mon 3/316:40SFO - LGW
1 stop15h 05mTAP AIR PORTUGAL
Deal found 16/1₹ 46,670
Fri 24/107:40LHR - SFO
1 stop15h 10mLufthansa
Thu 6/208:25SFO - LHR
1 stop14h 15mLufthansa
Deal found 17/1₹ 46,756
Sat 19/410:35LHR - SFO
Nonstop11h 05mAustrian Airlines
Fri 9/519:45SFO - LHR
Nonstop10h 25mAustrian Airlines
Deal found 18/1₹ 47,016
Fri 25/406:00LHR - SFO
1 stop18h 10mSWISS
Tue 6/514:00SFO - LHR
1 stop19h 50mSWISS
Deal found 18/1₹ 48,055
Fri 24/110:40LHR - SFO
1 stop16h 30mFinnair
Thu 6/210:19SFO - LHR
1 stop13h 56mFinnair
Deal found 17/1₹ 48,142
Wed 26/207:55LGW - SFO
1 stop20h 15mMultiple Airlines
Thu 27/219:55SFO - LGW
1 stop15h 30mMultiple Airlines
Deal found 17/1₹ 48,748
Thu 6/207:10LHR - SFO
2 stops19h 35mBrussels Airlines
Fri 28/220:35SFO - LHR
2 stops16h 45mBrussels Airlines
Deal found 17/1₹ 49,181
Thu 8/515:05LGW - SFO
1 stop28h 26mBritish Airways
Fri 23/506:01SFO - LGW
1 stop18h 09mBritish Airways
Deal found 17/1₹ 49,614

Find flights from London to San Francisco within your budget

Customise your flight search to find flights from London to San Francisco 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 454,620 searches. Data last updated 18 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 14/2

18:00-21:47

1 stop35h 47m

San Francisco

Sun 23/2

17:25-12:00

Nonstop10h 35m

₹ 46,323

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 28/2

21:05-15:40

2 stops26h 35m

San Francisco

Fri 7/3

17:30-14:35

2 stops37h 05m

₹ 46,410

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Sun 23/3

06:55-17:25

2 stops41h 30m

San Francisco

Sun 30/3

19:05-17:50

1 stop14h 45m

₹ 46,410

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/2

06:20-13:10

1 stop14h 50m

San Francisco

Mon 10/2

16:40-10:55

Nonstop10h 15m

₹ 46,583

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Thu 13/2

10:10-14:55

2 stops60h 45m

San Francisco

Mon 3/3

16:40-15:45

1 stop15h 05m

₹ 46,670

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 17/2

18:40-16:25

1 stop29h 45m

San Francisco

Mon 24/2

19:25-21:25

2 stops18h 00m

₹ 46,756

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 4/3

10:05-13:15

Nonstop11h 10m

San Francisco

Mon 31/3

12:55-07:25

Nonstop10h 30m

₹ 46,843

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 19/4

10:35-13:40

Nonstop11h 05m

San Francisco

Fri 9/5

19:45-14:10

Nonstop10h 25m

₹ 47,016

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/3

06:30-11:50

1 stop13h 20m

San Francisco

Sun 30/3

13:45-10:45

1 stop13h 00m

₹ 48,228

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 26/2

07:55-20:10

1 stop20h 15m

San Francisco

Thu 27/2

19:55-19:25

1 stop15h 30m

₹ 48,748

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 41 results
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Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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.

Travel insights for flights from London to San Francisco

Get recent, data-driven insights about flights from London to San Francisco including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to San Francisco?

Use this chart to determine the optimal time to book a return flight from London to San Francisco. Price data was last updated on 10 January 2025.

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 991). Flying from London to San Francisco in July is currently the most expensive (average of ₹ 1,442). 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 SFO?

Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 January 2025.

A simple way to save on the total cost of your ticket is to fly from London to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the afternoon.

Weekly flight availability from London to San Francisco

Explore weekly flight availability from London to San Francisco. 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 January 2025.

The most flights from LON to SFO are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September 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 11.0 C).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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. Reviews last updated 18 January 2025.
See what other customers who have flown with TAP AIR PORTUGAL, Icelandair and Lufthansa from London to San Francisco have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,518 reviews
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,339 reviews
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
1,285 reviews
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
786 reviews
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.5
Good
1,598 reviews
8.0
Very Good
8,518 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco. 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 into for flights to San Francisco from London?

    San Francisco (SFO), located 19.0 km from the city centre, is the airport you fly into when you book flights from London to San Francisco. 1 airline have flights to San Francisco from London on a regular basis. Booking flights from London to San Francisco should not be difficult; the airport handles an average of 29 inbound flights from London per day.

  • What are the cheapest airlines flying from London to San Francisco round-trip?

    Our cheapest airline available from London to San Francisco is United Airlines. Our recent data shows that you can find tickets from as low as ₹ 46,323 on this airline. Additional options worth looking into are Scandinavian Airlines and SWISS, starting at ₹ 46,410 and ₹ 46,410 round-trip. Users have found that United Airlines is 21% cheaper than the other options available to this destination.

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

    The cheapet airlines for a one-way flight from London to San Francisco are WestJet (₹ 43,985), TAP AIR PORTUGAL (₹ 48,055), and JetBlue (₹ 67,104).

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

    No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing Air Canada(63%), Austrian Airlines(63%) or United Airlines(63%), as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from London to San Francisco? While on average our users pay ₹ 52,177, our data indicates the cheapest price to be ₹ 44,552. The most popular route (London Heathrow - San Francisco), is priced around ₹ 45,024.

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

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

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

    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.

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

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

    Currently, October is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 991). Flying from London to San Francisco in July is currently the most expensive (average of ₹ 1,442). 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

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Top airline flying from London to San Francisco

Discover the top airline that operate flights from London to San Francisco. 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 454,620 searches. Data last updated 18 January 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest₹ 47,085Average₹ 73,935FlexibilityNo cancel feeOn-time69%
Search United Airlines 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?

Deals for London to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Francisco.

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

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

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

Of course! You can now track prices for flights from London to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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