LHR - SFO

₹ 48,311 Find Cheap Flights from London to San Francisco – Compare and Save

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Everything you should know

Cheapest return flight
₹ 48,311
Typical prices: ₹ 59,371-₹ 86,759
United Airlines
Tue 23/10Fri 26/10
LHR - SFO • 1 stop
Cheapest direct flights
₹ 51,755
Typical prices: ₹ 60,078-₹ 88,675
United Airlines
Sun 4/11Sat 1/12
LHR - SFO • Direct
Direct flights
You can fly direct with United Airlines, British Airways, and Virgin Atlantic. Average duration is 11h 09m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 16 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ₹ 58,957 (return)
Shortest trip • 14h 06m (one-way)
Insights
Insights
Start a new search
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We hope you enjoy your trip to San Francisco!
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Booking Insights
Flight Deals

Cheap Flights from London to San Francisco (LHR-SFO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to San Francisco

Fri, 23 Oct - Mon, 26 Oct
United Airlines Logo
08:40 - 16:35LHR  London Heathrow-SFO San Francisco
15h 55m1 stop Zurich
United Airlines Logo
14:45 - 11:50SFO  San Francisco-LHR London Heathrow
14h 05m1 stop Vancouver Intl
₹ 48,311United Airlines
Mon, 26 Oct - Sat, 7 Nov
United Airlines Logo
06:35 - 20:35LHR  London Heathrow-SFO San Francisco
21h 00m1 stop Munich Franz Josef Strauss
United Airlines Logo
16:25 - 13:30SFO  San Francisco-LHR London Heathrow
13h 05m1 stop Los Angeles Los Angeles
₹ 48,789United Airlines
Tue, 29 Sep - Sun, 18 Oct
United Airlines Logo
16:15 - 19:15LHR  London Heathrow-SFO San Francisco
11h 00mdirect
United Airlines Logo
14:25 - 16:25SFO  San Francisco-LHR London Heathrow
18h 00m1 stop Zurich
₹ 51,372United Airlines
Tue, 13 Oct - Mon, 19 Oct
SWISS Logo
19:15 - 16:15LHR  London Heathrow-SFO San Francisco
29h 00m2 stops Geneva Geneve-Cointrin Zurich
SWISS Logo
19:35 - 17:50SFO  San Francisco-LHR London Heathrow
14h 15m1 stop Zurich
₹ 51,468SWISS
Fri, 5 Mar - Fri, 12 Mar
United Airlines Logo
09:00 - 16:30LHR  London Heathrow-SFO San Francisco
15h 30m1 stop Zurich
United Airlines Logo
21:40 - 10:25SFO  San Francisco-LHR London Heathrow
28h 45m1 stop Munich Franz Josef Strauss
₹ 51,563United Airlines
Thu, 1 Oct - Thu, 22 Oct
United Airlines Logo
10:35 - 13:35LHR  London Heathrow-SFO San Francisco
11h 00mdirect
United Airlines Logo
10:25 - 10:10SFO  San Francisco-LHR London Heathrow
15h 45m1 stop Los Angeles Los Angeles
₹ 51,755United Airlines
Thu, 15 Oct - Mon, 19 Oct
United Airlines Logo
15:00 - 23:20LHR  London Heathrow-SFO San Francisco
16h 20m1 stop Vancouver Intl
United Airlines Logo
23:55 - 21:25SFO  San Francisco-LHR London Heathrow
13h 30m1 stop Newark
₹ 51,850United Airlines
Tue, 6 Oct - Tue, 13 Oct
United Airlines Logo
10:35 - 13:35LHR  London Heathrow-SFO San Francisco
11h 00mdirect
United Airlines Logo
19:45 - 14:10SFO  San Francisco-LHR London Heathrow
10h 25mdirect
₹ 51,946United Airlines
Sat, 3 Oct - Tue, 20 Oct
United Airlines Logo
09:30 - 21:48LHR  London Heathrow-SFO San Francisco
20h 18m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
19:45 - 14:10SFO  San Francisco-LHR London Heathrow
10h 25mdirect
₹ 52,042United Airlines
Sat, 10 Oct - Sat, 17 Oct
United Airlines Logo
09:30 - 21:48LHR  London Heathrow-SFO San Francisco
20h 18m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
12:55 - 07:25SFO  San Francisco-LHR London Heathrow
10h 30mdirect
₹ 52,137United Airlines
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to San Francisco flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from London Heathrow Airport to San Francisco with more confidence.

How much is a return flight from London Heathrow Airport to San Francisco?

Return flights from London Heathrow Airport to San Francisco start at ₹ 48,311. Prices are below average for this route right now, with typical return fares ranging from ₹ 59,371 to ₹ 86,759. The lowest price found in the past 5 days was ₹ 48,311 on United Airlines.

What's the cheapest day of the week to fly from London Heathrow Airport to San Francisco?

Thursday is the cheapest day of the week to fly from London Heathrow Airport to San Francisco and is 6% cheaper than the average day. Sunday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from London Heathrow Airport to San Francisco?

•February is the cheapest month to fly from London Heathrow Airport to San Francisco at ₹ 53,285 return.
•December (₹ 83,133) and July (₹ 78,254) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 56% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from London Heathrow Airport to San Francisco the cheapest?

Flights from London Heathrow Airport to San Francisco are cheapest 16 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for London Heathrow Airport to San Francisco flights

Low season

February

Cheapest flight

₹ 48,693
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flights from London Heathrow Airport to San Francisco

When to book flights from Heathrow to San Francisco

Are your dates flexible? Find out the best times to travel from Heathrow to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Flights from Heathrow to San Francisco: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Heathrow to San Francisco 
ManyiFlew with British Airways-Jun 2026
London airport is huge - it took be an hour to transfer from one gate to another gate in the same terminal. Plan accordingly.
AntonFlew with United Airlines-Feb 2026
United has a cool arrival lounge in london but it is a bit hard to find, after customs look left
AlastairFlew with British Airways-Feb 2025
Make sure your free checked luggage is for outward and return flights.
Verified travelerFlew with United Airlines-Sept 2024
Download all your music. Add shows and movies to your queue. Bring short so you can relax. Bring long charger cords.
Verified travelerFlew with American Airlines-Mar 2024
Heathrow is vast, allow plenty of time to drop bags and go through security. At San Francisco the immigration takes a bit of time and we had to wait around 1.5hrs, bare this in mind when booking car rental. The is a shuttle train from the airport to the car rental area which is very slick and efficient.
Ana-MariaFlew with Iberia-Mar 2024
In London triple check your flight they have multiple leaving for the same destination once - it is easy to get them confused

Your London Heathrow Airport to San Francisco flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Is Heathrow family friendly?

    Heathrow Airport has at least one children’s play area in every terminal and most restaurants do children’s menus, and some promise to serve food within 15min. You can pre-order nappies and baby milk via the on-site chemist in each terminal, which reduces the need to carry more things through security.

  • How many airports are there in San Francisco and how many have direct routes from London?

    There are three airports in the San Francisco Bay area: San Francisco International Airport (SFO), Oakland International Airport (OAK) and San Jose International Airport (SJC). SFO is the airport that has more international airline options while Oakland and San Jose have more low-cost carriers and domestic routes. Both British Airways and Virgin fly non-stop to San Francisco SFO Airport from London Heathrow.

  • What is the best way to travel to London Heathrow to catch my plane to San Francisco SFO?

    There are two trains from central London, leaving Paddington station; the Heathrow Express takes 15min, non-stop and the Heathrow Connect takes 30min with a few stops. It is also very straightforward to catch the London Underground - the journey takes about an hour from central London.

  • Once landed from London Heathrow, what is the best way to travel into San Francisco using public transport?

    The Bay Area Rapid Transit (BART) is easy, taking 30min, with trains leaving 3-4 times every hour. Passengers can connect to the BART from any of the terminals via the free Air Train. BART trains run from 5:00 in the week, 6:00 on Saturdays, and 8:00 on Sundays and stop at midnight every day. There are also buses that run from San Francisco SFO Airport to various parts of the state. For example, the Evans Airport shuttle serves Napa, the Marin Airporter goes into Marin County and the Sonoma County Airport Express carries passengers to Sonoma County.

  • Which airlines offer extra legroom and free seat selection on London Heathrow Airport to San Francisco flights?

    Among airlines operating London Heathrow Airport to San Francisco flights:

    • Lufthansa: offers extra legroom; offers free seat selection
    • British Airways: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Virgin Atlantic: offers extra legroom; offers free seat selection
    • Brussels Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from London Heathrow Airport to San Francisco?

    3 airlines operate flights between London Heathrow Airport and San Francisco. The airlines offering direct flights on this route include:

    • United Airlines
    • British Airways
    • Virgin Atlantic

  • Which airports can I use when flying from London Heathrow Airport to San Francisco?

    Flights from London Heathrow Airport to San Francisco usually depart from London Heathrow (LHR) and arrive at San Francisco (SFO).

  • Which airlines include bags at no extra cost on London Heathrow Airport to San Francisco flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Lufthansa: a cabin bag and a checked bag in Economy class
    • British Airways: a cabin bag and a checked bag in Economy class
    • United Airlines: a cabin bag and a checked bag in Economy class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from London Heathrow Airport to San Francisco?

    Two cabin classes are available on flights from London Heathrow Airport to San Francisco:

    • Economy class
    • Business Class

  • How much can I save by having a stopover when flying from London Heathrow Airport to San Francisco?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ₹ 58,957 return via Zurich (ZRH), compared with ₹ 71,808 for direct.

  • What is the standard checked bag allowance on flights from London Heathrow Airport to San Francisco?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ₹ 4,903–₹ 9,566 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from London Heathrow Airport to San Francisco?

    The Boeing 787-9 Dreamliner family is used most often on this route, operated mainly by Lufthansa and Brussels Airlines. Other aircraft seen on the route include Airbus A380-800 variants.

  • Which airports do connecting flights from London Heathrow Airport to San Francisco pass through?

    One-stop flights from London Heathrow Airport to San Francisco most commonly connect through:

    • Dublin (DUB) – 35% of one-stop connections
    • Lisbon Humberto Delgado (LIS) – 17% of one-stop connections
    • Kastrup Copenhagen (CPH) – 16% of one-stop connections
    • Seattle/Tacoma Intl (SEA) – 7% of one-stop connections

    Dublin (DUB) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London Heathrow Airport to San Francisco?

    Yes. Being flexible with your travel dates can save you up to 11% on the London Heathrow Airport to San Francisco route. Thursday is the cheapest departure day at ₹ 67,061 return on average, while Sunday is the most expensive at ₹ 74,714, a difference of ₹ 7,653. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from London Heathrow Airport to San Francisco?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London Heathrow Airport to San Francisco route, 13% of flights were delayed in the past 3 months, with delays averaging 2 hours 23 minutes.

  • How are flight departures from London Heathrow Airport to San Francisco spread across the day?

    Morning is the busiest departure period on London Heathrow Airport to San Francisco flights, with 50% leaving in that window. Afternoon departures account for 50%, Evening flights for 0%, and Night flights for 0%.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Moscone Center, Union Square, and Fisherman's Wharf. These are among the most viewed places in San Francisco on KAYAK.

  • What are the earliest and latest flights from London Heathrow Airport to San Francisco?

    These are the earliest and latest flight times available from London Heathrow Airport to San Francisco:

    • Earliest: departs at 10:05 and lands at 21:14
    • Latest: departs at 16:15 and lands at 03:24.

    The flight takes about 11h 09m.

  • How expensive are last-minute London Heathrow Airport to San Francisco flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 13% above the route average of ₹ 71,184. Book 16 weeks before departure for the lowest fares.

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

    A direct flight from London Heathrow Airport to San Francisco takes 11h 09m, covering 13,857 km.

  • Do I need a passport to fly from London Heathrow Airport to San Francisco?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from London Heathrow Airport to San Francisco looking right now?

    One-way fares from London Heathrow Airport to San Francisco are currently lower than usual. Average one-way flight prices are about ₹ 50,281, which is 22% below the typical average for this route.

  • How does United Airlines's on-time performance compare to other airlines on London Heathrow Airport to San Francisco flights?

    United Airlines is slightly above the route average for timely arrivals, while Virgin Atlantic has a lower on-time arrival rate. On-time arrival rates on London Heathrow Airport to San Francisco flights are:

    • United Airlines: 89% on time
    • Virgin Atlantic: 88% on time
    • British Airways: 85% on time

    On average, flights on this route are punctual 87% of the time.

  • How do delay rates compare for morning and evening flights from London Heathrow Airport to San Francisco?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different stopover airport from London Heathrow Airport to San Francisco?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time of 14h 06m, compared to 14h 07m via Dublin (DUB) and 14h 19m via Amsterdam Schiphol (AMS).

  • What is the time difference between London Heathrow Airport and San Francisco?

    San Francisco is 8 hours behind London Heathrow Airport (Pacific Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car hire companies, with daily rates starting from around ₹ 1,461 for economy cars. Top options include:
    • Thrifty
    • Europcar
    • Dollar
    • Hertz
    • Fox

  • How much should I expect to pay for a London Heathrow Airport to San Francisco flight?

    Return flights from London Heathrow Airport to San Francisco range from ₹ 59,371 to ₹ 86,759, with an average of ₹ 71,184 over the past 12 months. Anything below ₹ 59,371 counts as a good deal.

  • Which airlines offer Wi-Fi on London Heathrow Airport to San Francisco flights?

    KLM is the only airline on the London Heathrow Airport to San Francisco route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking London Heathrow Airport to San Francisco flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average ₹ 67,061 – about ₹ 7,653 less than Sunday (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to San Francisco trip for February. Fares historically average ₹ 53,285 return in that month – typically ₹ 29,847 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 89% of United Airlines flights from London Heathrow Airport to San Francisco arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 87%. When flights on this route do arrive late, the average delay is 2 hours23 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Zurich Airport (ZRH) can be cheaper than flying direct. The cheapest stopover option averages ₹ 58,957 return on this route – about ₹ 12,851 less than direct flights (based on the last 12 months).
  • London Heathrow (LHR) is one of the busiest airports in the world, so make sure to check your terminal in advance as distances between the terminals can be long if you make a mistake, and the journey between them can take more time than you think.
  • Download the London Heathrow app onto your telephone before you leave, as this will update you in real-time on delays, and also help you easily navigate the terminals to find restaurants, services and your boarding gate.
  • If you are pushed for time but very hungry, look out for the 15-minute symbol at many of the eateries at Heathrow Airport; these places will take your order and deliver your food within 15min.
  • If you find yourself with lots of time to spare before your flight, head to the Number 1 Lounge in Terminal 3 after security – as well as food, newspapers and drink, it also has a travel spa and sleep pods that can be reserved by the hour.
  • When planning your flight into San Francisco SFO Airport, remember that because it’s so close to the coast, it is prone to being foggy, which means that landing and take-off capacity becomes frequently limited. Make sure you factor in some extra landing time in your arrival schedule for unforeseen weather delays; it’s all part of the wonder of arriving in the area.

Prefer to fly direct from London Heathrow to San Francisco?

 
Find which airlines fly direct from London Heathrow Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to San Francisco

Monday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Tuesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Wednesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Thursday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Friday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Saturday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Sunday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

See more direct flights

Direct returns

San Francisco to London Heathrow

Monday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Tuesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Wednesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Thursday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Friday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Saturday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Sunday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

See more direct flights

More options for your flight from Heathrow to San Francisco

Complete your trip to San Francisco with a hotel stay or car hire