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Cheap flights from London to San Francisco from ₹ 46,414

LON — SFO
18 Sep — 25 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to San Francisco are usually found in February or September, booked 41 days in advance, depart on a Wednesday or Thursday and return on a Sunday

Cheap flight deals from London to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from London to San Francisco

Sun 8/1106:30 -
1 stop13h 15m
Fri 5/310:31 -
1 stop16h 09m
Deal found 17/8₹ 57,037
Wed 2/1206:30 -
1 stop13h 15m
Thu 21/107:00 -
1 stop15h 20m
Deal found 18/8₹ 57,133
Tue 17/1106:30 -
1 stop13h 15m
Sun 29/1107:05 -
1 stop20h 30m
Deal found 19/8₹ 57,228
Fri 4/1206:30 -
1 stop13h 15m
Sat 23/110:00 -
1 stop16h 00m
Deal found 18/8₹ 57,420
Thu 5/1106:30 -
1 stop13h 15m
Fri 13/1116:55 -
2 stops19h 15m
Deal found 19/8₹ 57,516
Wed 2/1206:30 -
1 stop13h 15m
Wed 20/118:50 -
1 stop13h 40m
Deal found 18/8₹ 57,611
Sat 31/1006:20 -
1 stop14h 35m
Fri 16/406:00 -
1 stop20h 00m
Deal found 16/8₹ 57,707
Thu 3/1206:20 -
1 stop14h 35m
Sun 24/116:40 -
Nonstop10h 15m
Deal found 18/8₹ 57,803
Mon 16/1106:20 -
1 stop14h 35m
Mon 30/1116:40 -
Nonstop10h 15m
Deal found 19/8₹ 57,898
Wed 23/919:50 -
1 stop26h 40m
Thu 8/1016:30 -
1 stop22h 25m
Deal found 16/8₹ 57,994
Thu 3/1206:20 -
1 stop14h 35m
Sat 23/110:00 -
1 stop16h 00m
Deal found 18/8₹ 58,090
Sat 31/1006:20 -
2 stops24h 06m
Sat 10/413:05 -
1 stop18h 30m
Deal found 16/8₹ 58,186

Find flight deals from London to San Francisco

Round-trip from

₹ 57,037

One-way from

₹ 46,414

Popular in

December

Cheapest in

February

Average price

₹ 78,187
Delta
  • Delta
  • 8/11-5/3
  • 2 total stops
  • 29h 24m total
  • London to San Francisco
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British Airways
  • British Airways
  • 15/11
  • 2 total stops
  • 38h 37m total
  • London to San Francisco
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Highest demand for flights based on searches. 0% potential increase in price (₹ 51,833 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (₹ 100,808 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Wed 20/1

06:30-11:45

1 stop13h 15m

San Francisco

Wed 27/1

06:15-07:05

1 stop16h 50m

₹ 58,281

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 10/12

11:45-14:55

Nonstop11h 10m

San Francisco

Thu 24/12

17:25-11:50

Nonstop10h 25m

₹ 58,568

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Tue 20/10

13:30-19:50

1 stop14h 20m

San Francisco

Thu 5/11

12:50-07:25

Nonstop10h 35m

₹ 58,951

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 3/9

08:45-16:15

1 stop15h 30m

San Francisco

Wed 9/9

12:35-12:35

1 stop16h 00m

₹ 60,865

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 4/9

08:40-16:15

1 stop15h 35m

San Francisco

Sun 20/9

23:59-07:45

1 stop23h 46m

₹ 60,865

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Sun 20/12

14:45-23:59

1 stop17h 14m

San Francisco

Sat 2/1

21:26-12:20

1 stop30h 54m

₹ 61,918

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Wed 16/9

13:00-16:05

Nonstop11h 05m

San Francisco

Tue 29/9

16:40-11:10

Nonstop10h 30m

₹ 62,683
Fastest return journey

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 8/10

13:00-16:00

Nonstop11h 00m

San Francisco

Thu 15/10

16:45-11:10

Nonstop10h 25m

₹ 63,066

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Mon 21/9

08:55-00:34

2 stops23h 39m

San Francisco

Sat 3/10

17:38-15:35

1 stop13h 57m

₹ 63,162

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 11/9

07:30-15:20

1 stop15h 50m

San Francisco

Wed 23/9

19:45-14:10

Nonstop10h 25m

₹ 63,353

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 44 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from London to San Francisco

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

Currently, February is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 55,506). Flying from London to San Francisco in December is currently the most expensive (average of ₹ 82,206). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to San Francisco as you normally would.

Weekly flight availability from London to San Francisco

The most flights from LON to SFO are scheduled on a Monday (38 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost for a return flight from London to San Francisco?

Airfare is below average for this route at the moment.
London to San Francisco flights typically cost between ₹ 69,287 and ₹ 90,532 in November.
The cheapest return price found within the last 5 days was ₹ 57,037 on Delta (8 Nov–5 Mar).

How often are flights from London to San Francisco delayed?

About 13% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 142 minutes.

What is the most punctual flight time for London to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to San Francisco flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 11% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from London to San Francisco, you should look to book at least 22 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.

Reviews of airlines servicing San Francisco

Read through reviews of airlines operating flights from London to San Francisco, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,104 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
10,104 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

  • What airport do you fly into for flights to San Francisco from London?

    San Francisco (SFO), located 17.7 km from the city centre, is the airport you fly into when you book flights from London to San Francisco. 0 airlines 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 37 inbound flights from London per day.

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

    Airlines like Delta, British Airways, and Lufthansa fly from London to San Francisco in about 11h 10m. The time it takes to get you to your destination can typically vary by up to 3h 10m. The distance from London to San Francisco is about 8610 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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(75%), Austrian Airlines(75%) or United Airlines(75%), as they are the most reliable in getting you off to your destination on time.

  • 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, February is the cheapest month in which you can book a flight from London to San Francisco (average of ₹ 55,506). Flying from London to San Francisco in December is currently the most expensive (average of ₹ 82,206). 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?

Book flights to San Francisco if you plan to visit one of these locations
Mountain View
Santa Clara
Burlingame
Milpitas

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to San Francisco

Heathrow to San Francisco flights

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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.

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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.

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