Find flights
Deals
When to book
FAQs

Cheap flights from London Heathrow Airport to San Francisco from ₹ 48,946

LHR — SFO
28 Oct — 4 Nov1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to San Francisco are usually found in February or January, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Francisco

Thu 8/1007:00 -
2 stops17h 15m
Sun 11/1019:35 -
1 stop14h 15m
Deal found 25/9₹ 50,096
Wed 28/1006:00 -
1 stop18h 30m
Thu 5/1119:25 -
2 stops18h 00m
Deal found 26/9₹ 50,192
Sun 8/1107:00 -
2 stops17h 30m
Sun 15/1119:25 -
1 stop14h 25m
Deal found 24/9₹ 50,287
Tue 20/1018:40 -
1 stop29h 55m
Wed 4/1119:25 -
2 stops18h 00m
Deal found 23/9₹ 50,479
Mon 9/1106:00 -
1 stop18h 30m
Mon 16/1114:20 -
2 stops20h 55m
Deal found 25/9₹ 50,575
Fri 13/1109:00 -
1 stop15h 30m
Tue 17/1114:20 -
2 stops20h 55m
Deal found 24/9₹ 50,766
Tue 6/1015:05 -
1 stop14h 43m
Mon 12/1014:25 -
1 stop18h 00m
Deal found 28/9₹ 50,862
Mon 26/1013:45 -
Nonstop11h 10m
Fri 6/1112:50 -
Nonstop10h 35m
Deal found 26/9₹ 50,958
Sat 3/1013:00 -
Nonstop10h 55m
Sat 10/1013:50 -
1 stop14h 05m
Deal found 25/9₹ 51,054
Mon 5/1013:00 -
Nonstop10h 55m
Sun 18/1019:45 -
Nonstop10h 25m
Deal found 28/9₹ 51,150
Fri 2/1013:00 -
Nonstop11h 05m
Thu 15/1019:45 -
Nonstop10h 25m
Deal found 25/9₹ 51,245

Find flight deals from Heathrow to San Francisco

Round-trip from

₹ 50,096

One-way from

₹ 48,946

Popular in

December

Cheapest in

February

Average price

₹ 65,038

Good round-trip deal

₹ 52,214 or less
SWISS
  • SWISS
  • 8/10-11/10
  • 3 total stops
  • 31h 30m total
  • London to San Francisco
Search Deals
United Airlines
  • United Airlines
  • 5/11-31/12
  • 2 total stops
  • 22h 13m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (₹ 27,492 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (₹ 106,512 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport 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

Mon 12/10

07:00-16:35

2 stops17h 35m

San Francisco

Mon 19/10

19:35-17:50

1 stop14h 15m

₹ 50,192

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Wed 6/1

20:05-16:30

1 stop28h 25m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

₹ 50,383

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Sun 27/12

13:10-22:11

1 stop17h 01m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

₹ 50,958

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Wed 18/11

13:45-16:55

Nonstop11h 10m

San Francisco

Wed 25/11

12:50-07:25

Nonstop10h 35m

₹ 51,054

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 6/11

13:45-16:55

Nonstop11h 10m

San Francisco

Sun 22/11

08:45-13:30

1 stop20h 45m

₹ 51,150

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 20/11

10:05-13:20

Nonstop11h 15m

San Francisco

Sun 22/11

16:25-13:30

1 stop13h 05m

₹ 51,150

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Tue 12/1

20:05-16:30

1 stop28h 25m

San Francisco

Mon 18/1

19:25-21:25

2 stops18h 00m

₹ 51,245
Fastest return journey

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 12/11

10:05-13:20

Nonstop11h 15m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

₹ 51,437

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 6/11

13:45-16:55

Nonstop11h 10m

San Francisco

Sat 21/11

21:24-09:40

1 stop28h 16m

₹ 51,628

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 30/10

09:20-20:55

1 stop18h 35m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

₹ 51,724

Flights are sorted by cheapest return flights first.

Deals found on 24/9

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Heathrow with our price prediction graph.
Estimated return price

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Francisco, you should look to book at least 68 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 Heathrow Airport to San Francisco?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of ₹ 59,962). Flying from London Heathrow Airport to San Francisco in December is currently the most expensive (average of ₹ 83,142). 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 LHR to SFO?

When flying from London Heathrow Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.

London Heathrow Airport to San Francisco flights typically cost between ₹ 55,173 and ₹ 80,268 in October.
The cheapest return price found within the last 5 days was ₹ 50,096 on SWISS (8 Oct–18 Oct).

Related info for your journey

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

    Located just 17.7 km from the city centre, San Francisco is the airport most travellers will use when flying to San Francisco from London Heathrow. Booking flights from London Heathrow to San Francisco (SFO) should be relatively easy as there are 37 daily inbound flights from London Heathrow from 0 different airlines.

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

    United Airlines, SWISS, and Lufthansa can get you from London Heathrow Airport to San Francisco in just under 11h 10m. Your travel time can differ by up to 17h 15m. The distance from London Heathrow Airport to San Francisco is about 8610 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to San Francisco consider choosing Air Canada(73%), Austrian Airlines(73%) or United Airlines(73%), as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from London Heathrow Airport to San Francisco? While on average our users pay ₹ 68,641, our data indicates the cheapest price to be ₹ 52,059. The most popular route (London Heathrow - San Francisco), is priced around ₹ 52,395.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of ₹ 59,962). Flying from London Heathrow Airport to San Francisco in December is currently the most expensive (average of ₹ 83,142). 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
Burlingame
Milpitas
Santa Clara

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to San Francisco?

Deals for Heathrow 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 Heathrow to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to San Francisco, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Heathrow to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.