Cheap flights from London to San Francisco

London
LON
San Francisco
SFO

Flight deals from London to San Francisco

Below you can see the best deals on flights London — San Francisco for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 6 October, from $433.

Top 10 cheap flights from London to San Francisco

AA
AA
$ 475

London — San Francisco

10:05—16:09
11 Sep 2026
14 h 4 m
1 stop
AA
AA
$ 476

London — San Francisco

10:05—16:09
10 Sep 2026
14 h 4 m
1 stop
AA
AA
$ 483

London — San Francisco

07:50—16:20
1 Sep 2026
16 h 30 m
1 stop
AA
$ 497

London — San Francisco

14:20—17:30
2 Sep 2026
11 h 10 m
Direct flight
AA
$ 497

London — San Francisco

10:45—13:50
9 Sep 2026
11 h 5 m
Direct flight
AA
$ 503

London — San Francisco

10:45—13:50
29 Aug 2026
11 h 5 m
Direct flight
AA
AA
$ 503

London — San Francisco

11:10—18:00
31 Aug 2026
14 h 50 m
1 stop
AA
AA
$ 503

London — San Francisco

08:20—15:58
31 Aug 2026
15 h 38 m
1 stop
AA
AA
$ 503

London — San Francisco

08:20—15:58
2 Sep 2026
15 h 38 m
1 stop
AA
AA
$ 503

London — San Francisco

08:20—15:30
9 Sep 2026
15 h 10 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the London — San Francisco flight

Looking for cheap flights from London to San Francisco? Compare fares from different airlines, check the flight schedule and travel time — and book your London — San Francisco ticket online at the best price.

The route has direct flights — around 253 flights per week, flights are operated by United Airlines, British Airways, Aer Lingus, Virgin Atlantic and 8 more airlines, a nonstop flight takes about 10 h 55 min, the distance between the cities is around 8,639 km.

Planning your trip? You may find our San Francisco travel guide, how to get from the airport into town and San Francisco weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $415Min. price
AprilCheapest
AugustPeak season
YesDirect flights
8,639 kmDistance
10 h 55 minTravel time
17Airlines
253 / wkFlights

Flight schedule from London to San Francisco

The table shows direct flights from London to San Francisco on the selected date. The flight takes approximately 10 h 55 min. Regular flights are operated by United Airlines, British Airways, Aer Lingus and Virgin Atlantic. Departures from Heathrow Airport, London Gatwick Airport and Stansted Airport airports, arrivals at San Francisco International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: London — San Francisco

Below is a calendar of the lowest flight ticket prices for London — San Francisco by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $415 in April, and the most expensive are around $503 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from London to San Francisco by month. Tickets are usually cheapest in February (around $580) and priciest in July (about $870) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$665mediumMay$786highSep$725medium
Feb$580lowJun$846highOct$701medium
Mar$604lowJul$870highNov$604low
Apr$701mediumAug$846highDec$749medium

Some values are estimated based on seasonality.

When to fly

Weather in San Francisco: it is warmest in September (up to 24 °C on average) and coolest in January (around 14 °C). The driest month is June.

Tickets are usually cheapest in April and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Francisco

Dry and wet days · San Francisco

Wind speed and direction · San Francisco

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How to get the best deal on a London — San Francisco ticket

  • Book ahead: fares for London — San Francisco are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • London is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San Francisco is usually April — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the London — San Francisco route are operated by 12 airlines; United Airlines runs the most flights (around 17% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    15x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight LHR → SFO15x/week
      Duration
      11h
      Days
      MTWTFSS
    17.4%Open →
  • British AirwaysBA
    9x/week
    WebsiteFleet: 29243M pax/year
    • Direct flight LHR → SFO9x/week
      Duration
      11h 7m
      Days
      MTWTFSS
    11.1%Open →
  • Aer LingusEI
    9x/week
    WebsiteFleet: 5710.7M pax/year
    • Direct flight LHR → SFO9x/week
      Duration
      11h 7m
      Days
      MTWTFSS
    11.1%Open →
  • Virgin AtlanticVS
    9x/week
    WebsiteFleet: 415.3M pax/year
    • Direct flight LHR → SFO9x/week
      Duration
      11h 3m
      Days
      MTWTFSS
    11.1%Open →
  • Air FranceAF
    9x/week
    WebsiteFleet: 22045M pax/year
    • Direct flight LHR → SFO9x/week
      Duration
      11h
      Days
      MTWTFSS
    10.7%Open →
  • DeltaDL
    9x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight LHR → SFO9x/week
      Duration
      11h
      Days
      MTWTFSS
    10.7%Open →
  • LufthansaLH
    7x/week
    WebsiteFleet: 38764.5M pax/year
    • Direct flight LHR → SFO7x/week
    8.7%Open →
  • FinnairAY
    5x/week
    WebsiteFleet: 7911M pax/year
    • Direct flight LHR → SFO5x/week
      Duration
      11h 7m
      Days
      MTWTFSS
    5.9%Open →
  • AustrianOS
    4x/week
    WebsiteFleet: 6814.6M pax/year
    • Direct flight LHR → SFO4x/week
    4.7%Open →
  • Brussels AirlinesSN
    2x/week
    WebsiteFleet: 468.3M pax/year
    • Direct flight LHR → SFO2x/week
    2.4%Open →
  • Air CanadaAC
    1x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight LHR → SFO1x/week
    1.2%Open →
  • SwissLX
    1x/week
    WebsiteFleet: 11221.1M pax/year
    • Direct flight LHR → SFO1x/week
    1.2%Open →

Cities and airports on the London — San Francisco route

Flights London — San Francisco depart from Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport and arrive at San Francisco International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Arrival

San Francisco

SFO
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the London — San Francisco flight

How long is the flight from London to San Francisco?

A nonstop London — San Francisco flight takes about 10 h 55 min — the distance between the cities is around 8,639 km.

How far is it from London to San Francisco?

The distance from London to San Francisco is about 8,639 km, which a nonstop flight covers in around 10 h 55 min.

Are there direct flights from London to San Francisco?

Yes, there are nonstop flights London — San Francisco — around 253 flights per week.

Which airlines fly from London to San Francisco?

Airlines operating London — San Francisco include United Airlines, British Airways, Aer Lingus, Virgin Atlantic, Air France. See the full list with schedules in the "Airlines" section on this page.

Which airports do London — San Francisco flights use?

Flights from London depart from Heathrow Airport, London Gatwick Airport, Stansted Airport, and arrive at San Francisco International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from London to San Francisco?

The price of a London — San Francisco ticket depends on your travel date, season and demand: it is usually cheapest to fly in April, and most expensive in August. Tickets typically cost between $415 and $503. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights London — San Francisco?

Flights London — San Francisco are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is April. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from London to San Francisco?

To catch a low fare London — San Francisco, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually April.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from London

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New York CityAmsterdamMadridBarcelonaDublinParisFrankfurt am MainMilanPalmaMalagaEdinburghIstanbulGenevaGlasgowBelfastLisbonFaroZurichNiceRomeLos AngelesCopenhagenAthensAlicanteBerlinDubaiBostonIbizaTorontoAntalyaMunichChicagoDohaBristolStockholmOsloViennaDusseldorfCardiffWarsaw

Where else you can fly from San Francisco

See all
Los AngelesNew York CitySeattleSan DiegoSanta AnaLas VegasBurbankBostonVancouverPhoenixPortlandDenverPalm SpringsHonoluluDallasChicagoSalt Lake CityAustinAtlantaWashington, D.C.HoustonKahuluiTaipeiMinneapolisTorontoDetroitOrlandoSpokaneTokyoParisBoiseKapaaSan Jose del CaboPuerto VallartaRedmondSeoulFrankfurt am MainCalgaryMexico CityKailua-Kona

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