SFO - LHR

£269 Find Cheap Flights from San Francisco to London Heathrow Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£546
Typical prices: £605-£988
TAP AIR PORTUGAL
Sat 5/12Tue 15/12
SFO - LHR • 1 stop
Cheapest direct flights
£567
Typical prices: £516-£734
British Airways
Sat 10/4Fri 23/4
SFO - LHR • Direct
Advice from real travellers
BA premium economy adds 18 cm legroom; Virgin Economy Delight adds space too.
United Wi-Fi has free messaging; Lufthansa Premium Economy adds a checked bag.
Expert advice
Expert advice
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Expert advice
Expert advice
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Direct flights
You can fly direct with British Airways, United Airlines, and Virgin Atlantic. Average duration is 10h 29m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £435 (return)
Shortest trip • 13h 20m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

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

Recent return flight deals from San Francisco to Heathrow

Sat, 5 Dec - Tue, 15 Dec
TAP AIR PORTUGAL Logo
16:35 - 22:40SFO  San Francisco-LHR London Heathrow
22h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
18:30 - 14:45LHR  London Heathrow-SFO San Francisco
28h 15m1 stop Lisbon Humberto Delgado
£546TAP AIR PORTUGAL
Sat, 5 Dec - Tue, 15 Dec
TAP AIR PORTUGAL Logo
16:35 - 22:40SFO  San Francisco-LHR London Heathrow
22h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
18:30 - 14:45LHR  London Heathrow-SFO San Francisco
28h 15m1 stop Lisbon Humberto Delgado
£547TAP AIR PORTUGAL
Wed, 17 Feb - Fri, 19 Feb
United Airlines Logo
16:40 - 11:15SFO  San Francisco-LHR London Heathrow
10h 35mdirect
United Airlines Logo
09:00 - 16:30LHR  London Heathrow-SFO San Francisco
15h 30m1 stop Zurich
£551United Airlines
Sun, 14 Feb - Tue, 16 Feb
United Airlines Logo
06:30 - 11:50SFO  San Francisco-LHR London Heathrow
21h 20m1 stop Vancouver Intl
United Airlines Logo
09:00 - 16:30LHR  London Heathrow-SFO San Francisco
15h 30m1 stop Zurich
£551United Airlines
Sat, 10 Apr - Fri, 23 Apr
British Airways Logo
19:30 - 13:55SFO  San Francisco-LHR London Heathrow
10h 25mdirect
British Airways Logo
13:40 - 16:50LHR  London Heathrow-SFO San Francisco
11h 10mdirect
£567British Airways
Thu, 5 Nov - Thu, 12 Nov
British Airways Logo
20:35 - 15:10SFO  San Francisco-LHR London Heathrow
10h 35mdirect
British Airways Logo
11:45 - 14:55LHR  London Heathrow-SFO San Francisco
11h 10mdirect
£570British Airways
Tue, 9 Feb - Tue, 16 Feb
Delta Logo
16:40 - 10:55SFO  San Francisco-LHR London Heathrow
10h 15mdirect
Delta Logo
06:30 - 11:45LHR  London Heathrow-SFO San Francisco
13h 15m1 stop Amsterdam Schiphol
£644Delta
Sun, 7 Feb - Tue, 16 Feb
Delta Logo
16:40 - 10:55SFO  San Francisco-LHR London Heathrow
10h 15mdirect
Delta Logo
06:30 - 11:45LHR  London Heathrow-SFO San Francisco
13h 15m1 stop Amsterdam Schiphol
£644Delta
Sun, 14 Mar - Tue, 30 Mar
KLM Logo
17:40 - 10:55SFO  San Francisco-LHR London Heathrow
10h 15mdirect
KLM Logo
06:30 - 11:45LHR  London Heathrow-SFO San Francisco
13h 15m1 stop Amsterdam Schiphol
£645KLM
Wed, 10 Mar - Tue, 30 Mar
KLM Logo
16:40 - 10:55SFO  San Francisco-LHR London Heathrow
10h 15mdirect
KLM Logo
06:30 - 11:45LHR  London Heathrow-SFO San Francisco
13h 15m1 stop Amsterdam Schiphol
£645KLM
Booking Insights

KAYAK’s insights & trends for San Francisco to Heathrow flights

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

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

Flight prices are below average for this route right now.

Flights to London Heathrow Airport from San Francisco usually cost between £549 and £828 in December.
The lowest price found in the past 5 days was £546 on TAP AIR PORTUGAL (5 Dec–15 Dec).

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

Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Wednesday and more expensive on a Tuesday. On your return trip to San Francisco, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

The cheapest month for flights from San Francisco to London Heathrow Airport is February, where tickets cost £486 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £992 and £838 respectively.

Can I save money by flying with a stopover from San Francisco to London Heathrow Airport?

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £891 on average.

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

To get a below average price on the flight from San Francisco to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to Heathrow

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on KLM and SFO

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Good to know - Cheap tickets from San Francisco to London Heathrow Airport

Low season

January

Cheapest flight

£269
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from San Francisco to London Heathrow Airport

When to book flights from San Francisco to Heathrow

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

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

Insights shared by verified travellers who flew the route from San Francisco to Heathrow 
Verified travelerFlew with British Airways-Dec 2025
If not getting off in London make sure you have enough time to get to your connecting gates
Verified travelerFlew with Iberia-Jan 2026
Buy your flight directly from the airline because the cancellation process is purgatory
GeraldFlew with Virgin Atlantic-Jun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American Airlines-Jun 2025
Large number of passengers on the flight so arrive early to the airport and to the boarding gate
PallaviFlew with British Airways-Apr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
TapanFlew with British Airways-Oct 2024
Great baggage policy in BA.. The worst part was experience at London Heathrow airport. Security was slow, too many people. Almost lost connecting flight even with 2 hours layover.

FAQs for booking San Francisco to London Heathrow Airport 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.

  • What is the cheapest flight from San Francisco to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from San Francisco to London Heathrow Airport was £269 for a one-way ticket and £546 for a return.

  • Which airports will I be using when flying from San Francisco to London Heathrow Airport?

    San Francisco and London Heathrow Airport are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at London Heathrow.

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

    American Airlines, and KLM offer inflight Wi-Fi service on the San Francisco to London Heathrow Airport flight route.

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

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the San Francisco to London Heathrow Airport flight route.

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

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

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

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

  • Which is the best airline for flights from San Francisco to London, KLM or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to London are KLM and Delta. With an average price for the route of £729 and an overall rating of 7.8, KLM is the most popular choice. Delta is also a great choice for the route, with an average price of £896 and an overall rating of 7.8.

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to San Francisco? 25% of our users found flights on this route for £371 or less one-way and £852 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.

Prefer to fly direct from San Francisco to London Heathrow Airport?

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

Direct departures

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

Direct returns

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

More options for your flight from San Francisco to Heathrow

Complete your trip to London with a hotel stay or car hire