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Find cheap flights from San Francisco to London

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,983,279 times on KAYAK, and here is why:

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Flights from San Francisco to London - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to London to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to London?

The average price of all flights from San Francisco to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to London on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from San Francisco to London. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to London Heathrow Airport is February, where tickets cost C$ 931 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 1,756 and C$ 1,614 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Francisco to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 days before departure.

Which airlines fly most frequently between San Francisco and London?

Virgin Atlantic connects San Francisco to London with up to 4 flights per day. British Airways also offers 3 flights per day, while United Airlines follows with 3 flights per day.

How many flights are there between San Francisco and London Heathrow Airport per day?

Each day, there are between 10 and 11 nonstop flights that take off from San Francisco and land in London Heathrow Airport, with an average flight time of 10h 24m. The most common departure time is 7:00 p.m. and most flights take off in the afternoon. Each week, there are 76 flights. The most frequent day of departure is Thursday, when 14% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between San Francisco and London Heathrow Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from San Francisco to London?

Early birds can take the earliest flight from San Francisco at 12:30 pm and will be landing in London Heathrow Airport at 6:55 am.

What’s the latest departure time from San Francisco to London?

If you prefer to fly at night, the latest flight from San Francisco to London Heathrow Airport jets off at 10:10 pm and lands at 4:30 pm.

Good to know

Low season

January

High season

June
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (48% more expensive on average)

When to book flights from San Francisco to London

Are your dates flexible? Find out the best times to travel from San Francisco to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Francisco to London flights

  • Are there nonstop flights from San Francisco to Heathrow Airport?

    It is possible to fly directly into London from San Francisco. American Airlines and British Airways offer direct London flight deals, making the two airlines highly sought after by business travelers. However, you’ll have to add a few dollars for a ticket. Other airlines, such as Lufthansa, Aer Lingus, KLM, and Finnair have one-stop flights with one or multiple layovers in Frankfurt, Munich, Dublin, Amsterdam, and Helsinki.

  • Where can I find car rental companies at Heathrow Airport?

    If you prefer driving to your hotel or the city center from Heathrow Airport, you can rent a car from the car rental agencies located at every terminal's arrival concourses. You can rent a vehicle from some renowned companies, such as National, Avis, Europcar, Alamo, Enterprise Rent-A-Car, and Budget.

  • How can I get to London City from Heathrow Airport?

    You can access London city from Heathrow Airport by bus. The National Express buses depart the Heathrow Central Station, nestled between Terminals 2 and 3, every 15min. The journey takes about 50min. You can also take the Heathrow Express Trains that connect to Paddington Station in London. Fares cost around £15.87 ($22) - £18.04 ($25). Otherwise, take the typical black taxis, Minicabit, or cabs, which might charge about £2.89 ($4) - £5.05 ($7). You can also book a Heathrow Shuttle Transfer to your hotel or city center, although these have several stops.

  • Where are the airport lounges at San Francisco Airport?

    There are about seven lounges at San Francisco Airport (SFO) where you can relax and enjoy VIP services before your Heathrow (LHR) flight. They include the Air France-KLM Lounge (International Terminal A), American Airlines Admirals Club (Terminal 1), The Centurion Lounge (Terminal 3), Delta Sky Club (Terminal 2), Japan Airlines Sakura Lounge (Terminal A, immediately next to Gate A1), and others.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to London?

    SWISS, United Airlines, Lufthansa, KLM, and Iberia offer inflight Wi-Fi service on the San Francisco to London flight route.

  • Which aircraft models fly most regularly from San Francisco to London?

    The Boeing 777 is the aircraft model that flies most regularly on the San Francisco to London flight route.

  • Which airline alliances offer flights from San Francisco to London?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and London, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to London?

    There are direct flights from San Francisco to London on a daily basis.

  • How does KAYAK find such low prices on flights from San Francisco to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from San Francisco is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from San Francisco to London

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 1,113 or less round-trip.
  • Are you traveling for business? San Francisco Airport (SFO) offers business-centric services to make your trip as productive and convenient as possible. There is a Business Center in the International Terminal Main Building with free Wi-Fi, charging outlets, fax and copying solutions.
  • Flight boarding and cargo handling can be more convenient if you're at the right terminal. If you booked a Virgin Atlantic or British Airways ticket from San Francisco Airport (SFO), it would be best to check-in at the International Terminal. However, American Airlines depart from Terminal 2.
  • Do you have a lot of baggage and require inter-terminal transport at London-Heathrow Airport (LHR)? There are bus shuttles that transfer passengers from the arrival terminals to the Main Arrival Hall. You can also take the underground train, but you'll have to purchase a ticket at the terminal station.
  • Families will relish flying from San Francisco Airport (SFO) because it has many family-friendly amenities. The airport provides baggage assistance, nursing rooms, and children's play areas in Terminals 1, 2, and 3.
  • Travelers driving to the airport can find plenty of parking spaces within the San Francisco hub. You can park at the International Garage A or G. These charge about $2 per 15min, with a daily maximum of around $36. There's also a long-term parking lot with a daily maximum of about $18.
See more tips

Prefer to fly non-stop from San Francisco to London?

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

Nonstop departures

San Francisco to London Heathrow

Monday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Tuesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Wednesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Thursday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Friday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Saturday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Sunday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

See more nonstop flights

Nonstop returns

London Heathrow to San Francisco

Monday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Tuesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Wednesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Thursday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Friday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Saturday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Sunday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

See more nonstop flights
See more nonstop flights

Book cheap flights from San Francisco to London

One-way flight deals

directAmerican Airlines
10h 30mSFO-LHR
directKLM
10h 19mSFO-LHR
directAir Canada
10h 25mSFO-LHR
directAer Lingus
10h 30mSFO-LHR
directAustrian Airlines
10h 25mSFO-LHR
directAir France
10h 19mSFO-LHR
directDelta
10h 19mSFO-LHR
directAeromexico
10h 19mSFO-LHR
directSWISS
10h 25mSFO-LHR
directAir New Zealand
10h 25mSFO-LHR
directUnited Airlines
10h 25mSFO-LHR
directFinnair
10h 30mSFO-LHR
directIberia
10h 30mSFO-LHR
directBrussels Airlines
10h 25mSFO-LHR
directLufthansa
10h 25mSFO-LHR
directVirgin Atlantic
10h 19mSFO-LHR
directSingapore Airlines
10h 19mSFO-LHR
directBritish Airways
10h 30mSFO-LHR

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San Francisco - London Flights

Departure:

San Francisco (SFO)United States

Destination:

London (LHR)United Kingdom

Return flight deals:

London - San Francisco

Cabin classes:

C$ 5,497
C$ 3,060
C$ 1,023

Browse origins:

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