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Cheap flights from London Heathrow Airport to San Francisco from ₹ 33,224

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to San Francisco departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Aer Lingus Logo
08:50 - 15:55LHR-SFO
15h 05m1 stop
Aer Lingus Logo
17:40 - 15:55SFO-LHR
14h 15m1 stop
₹ 42,753Aer Lingus
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Scandinavian Airlines Logo
19:30 - 14:35LHR-SFO
27h 05m1 stop
Scandinavian Airlines Logo
16:40 - 18:50SFO-LHR
18h 10m2 stops
₹ 43,191Scandinavian Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Scandinavian Airlines Logo
19:30 - 14:35LHR-SFO
27h 05m1 stop
Scandinavian Airlines Logo
16:40 - 19:55SFO-LHR
19h 15m2 stops
₹ 43,628Scandinavian Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
TAP AIR PORTUGAL Logo
06:00 - 14:30LHR-SFO
16h 30m1 stop
TAP AIR PORTUGAL Logo
18:45 - 22:00SFO-LHR
19h 15m2 stops
₹ 44,327TAP AIR PORTUGAL
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Mon, 8 Sep - Tue, 16 Sep
United Airlines Logo
08:40 - 16:35LHR-SFO
15h 55m1 stop
United Airlines Logo
19:50 - 14:10SFO-LHR
10h 20mdirect
₹ 47,999United Airlines
Find Deal
Thu, 25 Sep - Thu, 9 Oct
United Airlines Logo
07:25 - 14:20LHR-SFO
14h 55m1 stop
United Airlines Logo
19:55 - 14:10SFO-LHR
10h 15mdirect
₹ 48,174United Airlines
Find Deal
Sun, 24 Aug - Tue, 9 Sep
SWISS Logo
20:05 - 16:10LHR-SFO
28h 05m1 stop
SWISS Logo
19:30 - 19:20SFO-LHR
15h 50m1 stop
₹ 48,349SWISS
Find Deal
Sun, 24 Aug - Tue, 9 Sep
SWISS Logo
06:00 - 16:10LHR-SFO
18h 10m1 stop
SWISS Logo
21:00 - 21:45SFO-LHR
40h 45m2 stops
₹ 48,961SWISS
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Fri, 5 Sep - Sun, 14 Sep
British Airways Logo
14:05 - 17:15LHR-SFO
11h 10mdirect
British Airways Logo
15:59 - 12:50SFO-LHR
12h 51m1 stop
₹ 50,185British Airways
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Sun, 24 Aug - Tue, 9 Sep
British Airways Logo
11:40 - 19:02LHR-SFO
15h 22m1 stop
British Airways Logo
19:20 - 13:45SFO-LHR
10h 25mdirect
₹ 50,622British Airways
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Wed, 24 Sep - Thu, 2 Oct

SWISS flights from London Heathrow Airport to San Francisco

Our best SWISS deals on London Heathrow Airport to San Francisco flight tickets
SWISS
24 Aug
LHR20:05London Heathrow
28h 05m
1 stop
SFO16:10San Francisco
9 Sept
SFO19:30San Francisco
15h 50m
1 stop
LHR19:20London Heathrow
₹ 48,349
Find similar
SWISS
5 Sept
LHR06:00London Heathrow
18h 10m
1 stop
SFO16:10San Francisco
14 Sept
SFO21:00San Francisco
40h 45m
2 stops
LHR21:45London Heathrow
₹ 48,961
Find similar
SWISS
5 Sept
LHR17:10London Heathrow
35h 00m
2 stops
SFO20:10San Francisco
14 Sept
SFO21:00San Francisco
36h 50m
2 stops
LHR17:50London Heathrow
₹ 49,398
Find similar

United Airlines flights from London Heathrow Airport to San Francisco

Our best United Airlines deals on London Heathrow Airport to San Francisco flight tickets
United Airlines
25 Sept
LHR08:40London Heathrow
15h 55m
1 stop
SFO16:35San Francisco
9 Oct
SFO19:50San Francisco
10h 20m
LHR14:10London Heathrow
₹ 47,999
Find similar
United Airlines
24 Aug
LHR07:25London Heathrow
14h 55m
1 stop
SFO14:20San Francisco
9 Sept
SFO19:55San Francisco
10h 15m
LHR14:10London Heathrow
₹ 48,174
Find similar
United Airlines
9 Sept
LHR08:45London Heathrow
15h 25m
1 stop
SFO16:10San Francisco
16 Sept
SFO23:45San Francisco
22h 45m
1 stop
LHR06:30London Heathrow
₹ 48,262
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 59,053 searches. Data last updated 31 July 2025.
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

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 14/9

08:50-15:55

1 stop15h 05m

San Francisco

Sun 21/9

17:40-15:55

1 stop14h 15m

₹ 42,753

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 5/11

19:30-14:35

1 stop27h 05m

San Francisco

Mon 10/11

16:40-18:50

2 stops18h 10m

₹ 43,191

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 5/11

19:30-14:35

1 stop27h 05m

San Francisco

Mon 10/11

16:40-19:55

2 stops19h 15m

₹ 43,628

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 8/9

06:00-14:30

1 stop16h 30m

San Francisco

Tue 16/9

18:45-22:00

2 stops19h 15m

₹ 44,327

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 25/9

08:40-16:35

1 stop15h 55m

San Francisco

Thu 9/10

19:50-14:10

Nonstop10h 20m

₹ 47,999

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

07:25-14:20

1 stop14h 55m

San Francisco

Tue 9/9

19:55-14:10

Nonstop10h 15m

₹ 48,174

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

20:05-16:10

1 stop28h 05m

San Francisco

Tue 9/9

19:30-19:20

1 stop15h 50m

₹ 48,349

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 5/9

06:00-16:10

1 stop18h 10m

San Francisco

Sun 14/9

21:00-21:45

2 stops40h 45m

₹ 48,961

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

14:05-17:15

Nonstop11h 10m

San Francisco

Tue 9/9

15:59-12:50

1 stop12h 51m

₹ 50,185

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 24/9

11:40-19:02

1 stop15h 22m

San Francisco

Thu 2/10

19:20-13:45

Nonstop10h 25m

₹ 50,622

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from London Heathrow Airport to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and San Francisco?

What is the cheapest month to fly to San Francisco?

In general, February is the cheapest month to fly from London Heathrow Airport to San Francisco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 49,136. If you aren’t able to travel to San Francisco during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of ₹ 51,584.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from London Heathrow Airport to San Francisco is on a Thursday. Travellers who choose to depart for San Francisco on a Thursday will often find tickets for as low as ₹ 49,875. The most expensive day to fly to San Francisco is Wednesday, with ticket prices averaging around ₹ 69,789.

What is the cheapest time of day to depart on your flight to San Francisco?

The cheapest time of day to fly to San Francisco is at midday when flights can be purchased for as low as ₹ 52,686. Flights in the morning are often more expensive, with an average ticket price of ₹ 58,715.

What is the cheapest London Heathrow to San Francisco flight route?

Fly from London Heathrow to San Francisco for the best London Heathrow - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around ₹ 59,380 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from London Heathrow Airport for as low as ₹ 54,644 on momondo.

What cabin class options are available on London Heathrow to San Francisco flights?

There are 2 cabin classes available to choose from on London Heathrow to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to San Francisco flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to San Francisco.

How have London Heathrow Airport to San Francisco flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to San Francisco flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

  • How far is London Heathrow to San Francisco by plane?

    There are 8596.0 km between London Heathrow and San Francisco. By plane, this route typically takes 10h 55m.

  • When did momondo last update prices for flights from London Heathrow Airport to San Francisco Airport?

    Prices for flights from London Heathrow Airport to San Francisco Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to San Francisco Airport?

  • How old do you have to be to fly from London Heathrow Airport to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to San Francisco?

  • What is the most popular airline from London Heathrow Airport to San Francisco?

Best airlines flying from London Heathrow Airport to San Francisco

Compare and see reviews for airlines that fly from London Heathrow Airport to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom ₹ 39,440Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
British AirwaysPriceFrom ₹ 45,817Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Virgin AtlanticPriceFrom ₹ 51,089Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights

  • United Airlines Flights From London Heathrow Airport to San Francisco

    United Airlines flies from London Heathrow Airport to San Francisco around 21 times per week, with 8,900 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from London Heathrow Airport to San Francisco in the last 72 hours was ₹ 451 (round-trip), much lower than the average airfare cost of ₹ 729 for United Airlines flights on this route.

  • Virgin Atlantic Flights From London Heathrow Airport to San Francisco

    Virgin Atlantic (7.4/10 from 655 reviews) operates around 14 flights from London Heathrow Airport to San Francisco in any given week. The average Virgin Atlantic airfare for this route is around ₹ 612, with deals from around ₹ 584 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to San Francisco flight searches in the last 72 hours.

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Menlo Park
Santa Clara
Palo Alto
San Mateo
South San Francisco
Roseville
Gilroy
Bodega Bay
Sunnyvale
Rancho Cordova
Daly City
Belmont
Cupertino
Fremont
Calistoga

Why use momondo?

Why should I use momondo to find a flight deal from London to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from London.

Can I find flights from London to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from London with this policy.

How can momondo help me find flights from London to San Francisco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from London.

I’m not ready to book a flight from London to San Francisco right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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