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

View AU$459 flight on Mon, 15 Mar 2027Opens in a new window

Popular airlines from San Francisco International Airport (SFO) to Heathrow Airport (LHR)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Fri, 6 Nov - Thu, 12 Nov
SFO
San Francisco
LHR
London
AU$971 Return, found 7 hours ago
AU$971
Return
found 7 hours ago
Select TAP Portugal flight, departing Fri, 6 Nov from San Francisco to London, returning Thu, 12 Nov, priced at AU$971 found 7 hours ago
Scandinavian Airlines
Fri, 6 Nov - Thu, 12 Nov
SFO
San Francisco
LHR
London
AU$1,007 Return, found 7 hours ago
AU$1,007
Return
found 7 hours ago
Select Scandinavian Airlines flight, departing Fri, 6 Nov from San Francisco to London, returning Thu, 12 Nov, priced at AU$1,007 found 7 hours ago
Delta
Fri, 13 Nov - Fri, 20 Nov
SFO
San Francisco
LHR
London
AU$1,225 Return, found 3 days ago
AU$1,225
Return
found 3 days ago
Select Delta flight, departing Fri, 13 Nov from San Francisco to London, returning Fri, 20 Nov, priced at AU$1,225 found 3 days ago
United
Tue, 5 Jan - Sun, 10 Jan
SFO
San Francisco
LHR
London
AU$1,226 Return, found 4 days ago
AU$1,226
Return
found 4 days ago
Select United flight, departing Tue, 5 Jan from San Francisco to London, returning Sun, 10 Jan, priced at AU$1,226 found 4 days ago
Alaska Airlines
Fri, 13 Nov - Fri, 20 Nov
SFO
San Francisco
LHR
London
AU$1,258 Return, found 3 days ago
AU$1,258
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 13 Nov from San Francisco to London, returning Fri, 20 Nov, priced at AU$1,258 found 3 days ago
Delta
Mon, 21 Sept - Tue, 6 Oct
SFO
San Francisco
LHR
London
AU$1,261 Return, found 3 hours ago
AU$1,261
Return
found 3 hours ago
Select Delta flight, departing Mon, 21 Sept from San Francisco to London, returning Tue, 6 Oct, priced at AU$1,261 found 3 hours ago
British Airways
Fri, 13 Nov - Fri, 20 Nov
SFO
San Francisco
LHR
London
AU$1,270 Return, found 3 days ago
AU$1,270
Return
found 3 days ago
Select British Airways flight, departing Fri, 13 Nov from San Francisco to London, returning Fri, 20 Nov, priced at AU$1,270 found 3 days ago
Virgin Atlantic
Fri, 13 Nov - Fri, 20 Nov
SFO
San Francisco
LHR
London
AU$1,281 Return, found 3 days ago
AU$1,281
Return
found 3 days ago
Select Virgin Atlantic flight, departing Fri, 13 Nov from San Francisco to London, returning Fri, 20 Nov, priced at AU$1,281 found 3 days ago
Air Canada
Mon, 4 Jan - Fri, 8 Jan
SFO
San Francisco
LHR
London
AU$1,306 Return, found 3 days ago
AU$1,306
Return
found 3 days ago
Select Air Canada flight, departing Mon, 4 Jan from San Francisco to London, returning Fri, 8 Jan, priced at AU$1,306 found 3 days ago
Finnair
Mon, 21 Sept - Wed, 7 Oct
SFO
San Francisco
LHR
London
AU$1,306 Return, found 3 days ago
AU$1,306
Return
found 3 days ago
Select Finnair flight, departing Mon, 21 Sept from San Francisco to London, returning Wed, 7 Oct, priced at AU$1,306 found 3 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Average driving time to city centre is 52 minutes. Flights from AU$2,349
LGW
Gatwick
Average driving time to city centre52 min
Flights from AU$2,349
Select flight to London City LCY. Closest option available. Average driving time to city centre is 21 minutes. Flights from AU$1,524
LCY
London City
Closest
Average driving time to city centre21 min
Flights from AU$1,524

Find the cheapest month to fly from San Francisco (SFO) to London (LHR)

November is typically the cheapest month to fly

From AU$972 - AU$1,248 per traveller.

Frequently asked questions

How much does a flight from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) cost?
You can find cheap one-way flights from AU$459 and cheap return flights from AU$971 SFO to LHR with Expedia. One-way flights typically cost between AU$583 and AU$4,136 and return flights often range between AU$1,151 and AU$9,306. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SFO to LHR ticket fares go up or down.
What is the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
February is typically the cheapest month to fly from San Francisco International Airport (SFO) to London Heathrow (LHR), with average return fares around AU$983. February often sees lower prices because it falls outside of peak holiday seasons, when travel demand tends to decrease. Other cheap months to fly from SFO to LHR include September and October.
Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
There are 3 airlines offering direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR). Here are the carriers:
  • United operates 21 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.
  • British Airways operates 14 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.
  • Virgin Atlantic operates 11 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.
What is the cheapest airline that flies from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
Virgin Atlantic is one of the cheapest airlines offering nonstop return flights from San Francisco Intl. (SFO) to Heathrow (LHR), with tickets starting from around AU$1362 for flights that can be booked for departure within the next year. Air France is one of the cheapest airlines offering connecting return flights, with tickets starting from around AU$1370. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from San Francisco, CA (SFO) to London (LHR)?
To find a cheap flight from San Francisco, CA (SFO) to London (LHR), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) will differ from traveller to traveller. If you like to fly early, United offers early morning flights. If price is the most important factor, Virgin Atlantic typically offers the lowest fares. American Airlines offers the most daily flights from SFO to LHR, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
The cheapest months to fly from San Francisco International Airport (SFO) to London Heathrow (LHR) are typically February and September, with average return flights around AU$983. However, the most popular months for this route are March and June, meaning you'll find plenty of flight options during these times. While there isn't a single month that is both the cheapest and most popular, you can balance good value with a wide selection of flights by considering February or September for lower fares, or March and June for more schedule flexibility.
How many flights per day from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
You'll find around 7 nonstop flights per day from San Francisco Intl. (SFO) to London Heathrow (LHR). For even more choices, look at flights that include layovers, as there are approximately 156 connecting flights per day. Some common connection points include John F. Kennedy Intl. (JFK), Logan Intl. (BOS), and Los Angeles Intl. (LAX).
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
The earliest flight from San Francisco International Airport (SFO) to London Heathrow (LHR) typically departs around 12:00 AM local time. This service is operated by Delta and is a seasonal offering, active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from San Francisco International Airport (SFO) to London Heathrow (LHR) on a Wednesday, with around 178 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have plenty of choices no matter which day you choose to fly.
What are the most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from San Francisco Intl. (SFO) to Heathrow (LHR) are in the late afternoon, from 3pm to 6pm. Many major carriers, including Virgin Atlantic, United and British Airways, offer flights during this window. Many travellers prefer these times as they allow for a full day of activities before heading to the airport, and you'll arrive in London ready to start your day.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
When flying from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow), a nonstop flight typically takes around 10 hours 30 minutes. This route covers a distance of approximately 8,618 kilometers. If you opt for a one-stop flight, your journey will usually be longer, taking about 14 hours. Flights with two or more stops generally take even more time, averaging around 16 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and specific routing.
Can you fly business or first class from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow)?
You can fly business class or first class between SFO and LHR. Airlines that offer business class service on this route include:
  • Virgin Atlantic
  • Swiss International Air Lines
  • TAP Portugal
  • Lufthansa
  • Air France
  • Iberia
  • SAS
  • ITA Airways
  • Aer Lingus
  • KLM
  • Korean Air
  • Singapore Airlines
  • Turkish Airlines
  • Alaska Airlines
  • LOT-Polish Airlines
  • British Airways
  • Air Canada
  • JetBlue Airways
  • Skywest Air
  • Delta
  • United
  • Finnair
  • Horizon Air
  • American Airlines
  • Condor
First class cabins are available on:
  • Swiss International Air Lines
  • Lufthansa
  • Alaska Airlines
  • British Airways
  • United
  • American Airlines
How do I earn miles on a San Francisco, CA (SFO) to London (LHR) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO) to London (LHR) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London (LHR) from San Francisco, CA (SFO)?
If you're planning to travel to London from San Francisco Intl. (SFO), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Logan Intl. (BOS), Los Angeles Intl. (LAX), or Kastrup (CPH) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO) to London (LHR) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO) to London (LHR) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO) to London (LHR) flight and hotel package?
Securing a San Francisco, CA (SFO) to London (LHR) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO) to London (LHR)?
If you booked your San Francisco, CA (SFO) to London (LHR) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Aeromexico, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Roundtrip price
AU$971
Distance
8567 km
Average flight time
18 hours 22 mins

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Your quick guide to flights from San Francisco to London

Pick up great flights from San Francisco to London

With Expedia, you have your pick of flights a day with 20 airlines covering flights from San Francisco to London. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from San Francisco to London that take around hours.

Find cheap flights from San Francisco to London

From the great flight deals with prices currently ranging from AU$971 to AU$1,306, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from San Francisco to London around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to London is normally in November.

Reasons to book your flight from San Francisco to London with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from San Francisco to London across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to London right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from San Francisco to London

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