Question 1

What are the cheapest airlines flying from London Heathrow Airport to San Francisco round-trip?

Accepted Answer

Cheapflights users have booked flights from London Heathrow Airport to San Francisco round-trip from £366. Another airline that can offer you cheap pricing is Lufthansa. TAP AIR PORTUGAL is priced at 27% lower than the current average price of a flight leaving 3 months from now.

Question 2

What are the cheapest airlines to fly from London Heathrow Airport to San Francisco one-way?

Accepted Answer

To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £448. Austrian Airlines flights start at £461 while deals on Lufthansa start at £464 one-way.

Question 3

How recently were the London Heathrow Airport to San Francisco flight deals updated?

Accepted Answer

The London Heathrow Airport to San Francisco flight deals you see on this page were last updated on 30/5.

Question 4

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

Accepted Answer

The price you pay for your flight from London Heathrow Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 5

What is the cheapest month to book a flight from London Heathrow Airport to San Francisco?

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of £528). Flying from London Heathrow Airport to San Francisco in July is currently the most expensive (average of £753). 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.

Question 6

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

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport to San Francisco flight should consider departing on Tuesday at midday when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

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

Accepted Answer

The cheapest flight price from London Heathrow Airport to San Francisco is £394. On average you can expect to pay £1,889. The most popular route, (London Heathrow - San Francisco), can usually be booked for £366.

Question 8

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

Accepted Answer

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to San Francisco on time: Air Canada (74%), Austrian Airlines (74%), United Airlines (74%).

Question 9

What are the most popular airlines that fly from London Heathrow Airport to San Francisco?

Accepted Answer

The most popular airlines flying from London Heathrow Airport to San Francisco are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

Question 10

Can I find flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from London Heathrow Airport to San Francisco for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £366, but on average you can expect to pay £380.

Question 11

Are there nonstop flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from London Heathrow Airport to San Francisco under £400. A good price for a nonstop flight from London Heathrow Airport to San Francisco is less than £407.

Question 12

Are there last-minute flights available from London Heathrow Airport to San Francisco for under £400?

Accepted Answer

There are currently 20+ open flights from London Heathrow Airport to San Francisco within the next 7 days for less than £400.

Question 13

Where are the most common stopover locations when flying from London Heathrow Airport to San Francisco?

Accepted Answer

Flights departing from London Heathrow Airport and landing in San Francisco stopover in Dublin most frequently.

Question 14

Where are the least popular stopover locations for London Heathrow Airport to San Francisco flights?

Accepted Answer

London Heathrow Airport to San Francisco flights have a stopover in Copenhagen least often.

Question 15

What are some popular things to do or see while on a stopover in Dublin?

Accepted Answer

The majority of Dublin visitors spend their time at Bord Gáis Energy Theatre, Olympia Theatre, and Royal Dublin Society. Bord Gáis Energy Theatre, Olympia Theatre, and Royal Dublin Society can be visited by traveling about 5.7 mi, 5.7 mi, and 6.9 mi respectively from Dublin. Those on a stopover in Dublin in need of a car hire can book one at Dublin for about £22.

Question 16

What is the cheapest day to fly round-trip from London Heathrow Airport to San Francisco?

Accepted Answer

Flights from London Heathrow Airport to San Francisco are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.

Question 17

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

Accepted Answer

Travelers have found it’s best to book a flight 58 days in advance to save up to 13% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 58 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to San Francisco 1-2 weeks in advance for as low as £495, or £545 for flights within the next 24 hours.

Question 18

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

Accepted Answer

February is one of the best times of the year to fly to San Francisco from London Heathrow Airport. Prices for February average £505 per person but you can even find prices for as low as £325. The most expensive prices can be found in the month of July. Opting for a February flight can save you 36% on your journey compared to booking in July

Question 19

What is the cheapest time of day to fly from LHR to SFO?

Accepted Answer

It’s typically best to fly out from London Heathrow Airport to San Francisco at midday. Doing so could potentially save you 11% on the flight price compared to flying in the afternoon, which is usually more expensive.

Question 20

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

Accepted Answer

Located just 11.8 mi from the city center, San Francisco is the airport most travelers 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 31 daily inbound flights from London Heathrow from 21 different airlines.

Question 21

Accepted Answer

One of the most popular airlines travelling from London Heathrow Airport to San Francisco is American Airlines. Flights from American Airlines travelling this route typically cost £684.37 RT. This price is typically 71% cheaper than other airlines that offer London Heathrow Airport to San Francisco flights. When booking this route, the cheapest RT price found was £464. The most popular departure airport in London Heathrow Airport when flying to San Francisco is London Heathrow Airport. The most popular airport to fly into when visiting San Francisco is San Francisco Airport. When flying from London Heathrow Airport to San Francisco, American Airlines flights are 7% more popular than any other airline flying that same route.

Question 22

Accepted Answer

TAP AIR PORTUGAL is one of the most popular airlines used for those travelling from London Heathrow Airport to San Francisco. London Heathrow Airport to San Francisco flights are typically 49% cheaper than other airlines traveling the same route. Flights from TAP AIR PORTUGAL typically cost £748.12 RT. The cheapest TAP AIR PORTUGAL flight found for this route was £541. London Heathrow Airport is the most common London Heathrow Airport airport to take off from when flying to San Francisco. San Francisco Airport is the most popular arrival airport in San Francisco. When flying from London Heathrow Airport to San Francisco, TAP AIR PORTUGAL flights are 4% more popular than any other airline flying that same route.

Question 23

What does LHR to SFO mean?

Accepted Answer

Great question - LHR to SFO just means London Heathrow Airport to San Francisco Airport. Now you’ll know what these unique codes when you look for flights!

Question 24

Can I find deals for flights from Heathrow to San Francisco that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Heathrow to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 25

Can I find deals on flights from Heathrow to San Francisco with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Heathrow to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 26

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

Accepted Answer

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

Question 27

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

Accepted Answer

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.

Question 28

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

Accepted Answer

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.

Question 29

Can I find deals for flights from Heathrow to San Francisco that allow pets onboard?

Accepted Answer

Many airlines flying from Heathrow to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 30

Can I find deals on last-minute flights from Heathrow to San Francisco?

Accepted Answer

Yes, you can often find last-minute deals on Heathrow to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 31

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Heathrow today with Cheapflights!

Question 32

Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Francisco?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Heathrow.

Question 33

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

Accepted Answer

Yes! Cheapflights helps users easily find flights from Heathrow to San Francisco with no change fees.

Question 34

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

Accepted Answer

Of course! You can now track prices for flights from Heathrow to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Popular in	July
Cheapest in	February
Average price	£493
Round-trip from	£415

Airline	Cheapest	Average	Flexibility	On-time
Norse Atlantic UK	Cheapest£211	Average£395	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
TAP AIR PORTUGAL	Cheapest£345	Average£437	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	Cheapest£358	Average£440	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Air Canada	Cheapest£362	Average£500	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	Cheapest£365	Average£538	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
British Airways	Cheapest£376	Average£447	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£386	Average£508	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
American Airlines	Cheapest£400	Average£540	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Finnair	Cheapest£402	Average£516	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Austrian Airlines	Cheapest£406	Average£496	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights

1%of flight departures	Early morningMidnight to 6 am
51%of flight departures	Morning6 am to noon
48%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Monday	31daily flights
Tuesday	31daily flights
Wednesday	31daily flights
Thursday	31daily flights
Friday	31daily flights
Saturday	31daily flights
Sunday	31daily flights

Cheap flights from London Heathrow Airport to San Francisco from £363

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from London Heathrow to San Francisco are usually found in February or November, booked 20 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Heathrow to San Francisco

Popular in

Cheapest in

Average price

Round-trip from

What is the cheapest day to fly round-trip from London Heathrow Airport to San Francisco?

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

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

What is the cheapest time of day to fly from LHR to SFO?

Cheap American Airlines flights from Heathrow to San Francisco

Find some of the cheapest American Airlines flights travelling from London to San Francisco. Deals update often to give you more flight options matching your criteria

Cheap TAP AIR PORTUGAL flights from Heathrow to San Francisco

Some of the best deals we've found on TAP AIR PORTUGAL flights travelling from London to San Francisco. Deals are refreshing constantly so come back soon for more options.

Cheap Heathrow to San Francisco flights in May & June 2024

Find cheap flight options from Heathrow to San Francisco specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Prices were last updated on 30 May 2024.

Listed are some of the best fares we've found on flights departing from London to San Francisco in 2024. More deals are always being added, so be sure to check back regularly.

Heathrow to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Data last updated 30 May 2024.

Listed are some of the best fares we've found on flights departing from London to San Francisco in 2024. More deals are always being added, so be sure to check back regularly.

Direct flights to San Francisco from Heathrow

Consider booking one of these non-stop flights heading from London to San Francisco. Those looking to potentially save on 1 or 2-stop flights from London to San Francisco should utilise the search form at the top of the page.

Heathrow to San Francisco flights leaving soon

Users seeking a last-minute flight from London to San Francisco should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to San Francisco from Heathrow

Take a look at some of the best available options we've come across on one-way flights from London to San Francisco. Users can also find round-trip London to San Francisco flights by using the search form above.

Find flights from Heathrow to San Francisco within your budget

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

Use this chart to determine the optimal time to book a return flight from Heathrow to San Francisco. Price data was last updated on 24 May 2024.

The price you pay for your flight from London Heathrow Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Use this chart to determine the cheapest time to fly return from Heathrow to San Francisco. Price data was last updated on 26 May 2024.

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.

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing San Francisco

Peruse reviews from past customers who have flown with American Airlines, TAP AIR PORTUGAL and Lufthansa from London to San Francisco to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

Can I find flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Are there nonstop flights from London Heathrow Airport to San Francisco for under £400 on Cheapflights?

Are there last-minute flights available from London Heathrow Airport to San Francisco for under £400?

What are the cheapest airlines flying from London Heathrow Airport to San Francisco round-trip?

What are the cheapest airlines to fly from London Heathrow Airport to San Francisco one-way?

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

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

What does LHR to SFO mean?

Where are the most common stopover locations when flying from London Heathrow Airport to San Francisco?

What are some popular things to do or see while on a stopover in Dublin?

Where are the least popular stopover locations for London Heathrow Airport to San Francisco flights?

Can I find deals for flights from Heathrow to San Francisco that include extra baggage allowance?

Can I find deals on flights from Heathrow to San Francisco with specific airlines?

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

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

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

Can I find deals for flights from Heathrow to San Francisco that allow pets onboard?

Can I find deals on last-minute flights from Heathrow to San Francisco?

How recently were the London Heathrow Airport to San Francisco flight deals updated?

What are the most popular airlines that fly from London Heathrow Airport to San Francisco?

What is the cheapest month to book a flight from London Heathrow Airport to San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to San Francisco on these airlinesChoose from the following airlines for your flight from Heathrow to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 30 May 2024.

Choose from the following airlines for your flight from Heathrow to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 30 May 2024.

Top 10 airlines flying from Heathrow to San Francisco

Popular flight searches

Check out other popular destinations found by fellow travellers in 2024

Search flights from Heathrow to San Francisco by cabin class

Find flights from Heathrow to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Heathrow to San Francisco

Find hourly flight availability from Heathrow to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 May 2024.

Weekly flight availability from Heathrow to San Francisco

Explore weekly flight availability from Heathrow to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 May 2024.

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User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

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Fly from Heathrow to San Francisco on these airlines
Choose from the following airlines for your flight from Heathrow to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 30 May 2024.