HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$504+ Cheap flights from Heathrow (LHR) to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from London Heathrow to San Francisco are usually found in February or January, booked 87 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Heathrow to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

July

Cheapest in

February

Average price

$573

Round-trip from

$509
(Gotogate)
Provider with most accurate pricing for London Heathrow-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-San Francisco flights.
Search Deals
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 19% potential price drop
Search Deals
Average for round-trip flights in November 2024
Search Deals
From London Heathrow to San Francisco
Search Deals

Find flight deals from Heathrow to San Francisco

Cheapest flights from Heathrow to San Francisco
Explore the most affordable flight options available from Heathrow to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2811:45 amLHR - SFO
Nonstop11h 15mMultiple Airlines
Mon 12/24:05 pmSFO - LHR
1 stop15h 55mMultiple Airlines
Deal found 11/20$504
This Gotogate deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:55 pmLHR - SFO
1 stop26h 35mTAP AIR PORTUGAL
Mon 12/94:40 pmSFO - LHR
1 stop20h 55mTAP AIR PORTUGAL
Deal found 11/19$509
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/256:30 amLHR - SFO
1 stop13h 20mDelta
Tue 12/104:40 pmSFO - LHR
Nonstop10h 15mDelta
Deal found 11/19$528
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:30 pmLHR - SFO
1 stop40h 29mFinnair
Thu 12/128:00 amSFO - LHR
1 stop20h 20mFinnair
Deal found 11/20$564
This Scandinavian Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:30 pmLHR - SFO
1 stop28h 10mScandinavian Airlines
Sun 12/295:30 pmSFO - LHR
1 stop14h 30mScandinavian Airlines
Deal found 11/20$566
This ChecknFly deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/241:45 pmLHR - SFO
Nonstop11h 10mLufthansa
Sun 12/15:25 pmSFO - LHR
Nonstop10h 35mLufthansa
Deal found 11/19$585
This Gotogate deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/255:05 pmLHR - SFO
1 stop26h 45mVirgin Atlantic
Tue 12/104:40 pmSFO - LHR
Nonstop10h 15mVirgin Atlantic
Deal found 11/20$595
This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/611:45 amLHR - SFO
Nonstop11h 15mBritish Airways
Thu 1/165:30 pmSFO - LHR
Nonstop10h 30mBritish Airways
Deal found 11/19$606
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/21:00 pmLHR - SFO
1 stop34h 35mUnited Airlines
Mon 12/910:45 pmSFO - LHR
1 stop13h 50mUnited Airlines
Deal found 11/19$625
This Brussels Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:45 pmLHR - SFO
Nonstop11h 10mBrussels Airlines
Fri 1/1712:50 pmSFO - LHR
Nonstop10h 35mBrussels Airlines
Deal found 11/19$628
This Air Canada deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/222:30 pmLHR - SFO
1 stop15h 21mAir Canada
Thu 11/288:30 amSFO - LHR
2 stops19h 20mAir Canada
Deal found 11/19$631
This Iberia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/223:20 pmLHR - SFO
Nonstop11h 25mIberia
Tue 11/268:25 amSFO - LHR
1 stop13h 55mIberia
Deal found 11/20$645

Find flights from Heathrow to San Francisco within your budget

Customize your flight search to find flights from Heathrow to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/5

7:55 pm-2:30 pm

1 stop26h 35m

San Francisco

Mon 12/9

4:40 pm-9:35 pm

1 stop20h 55m

$509

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 2/2

6:40 pm-3:40 pm

1 stop29h 00m

San Francisco

Sun 2/9

5:30 pm-4:00 pm

1 stop14h 30m

$515

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 12/7

6:30 am-11:50 am

1 stop13h 20m

San Francisco

Mon 12/9

4:40 pm-10:55 am

Nonstop10h 15m

$528

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 5/9

6:15 am-6:00 pm

1 stop19h 45m

San Francisco

Sat 5/17

10:15 pm-4:35 pm

Nonstop10h 20m

$552

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 12/25

1:45 pm-4:55 pm

Nonstop11h 10m

San Francisco

Sat 1/11

4:35 pm-1:30 pm

1 stop12h 55m

$585

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 1/14

6:00 am-4:25 pm

1 stop18h 25m

San Francisco

Tue 1/21

7:15 am-6:20 am

1 stop15h 05m

$592

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 1/25

3:20 pm-6:45 pm

Nonstop11h 25m

San Francisco

Mon 4/7

3:30 pm-10:00 am

Nonstop10h 30m

$603

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/3

1:00 pm-8:11 pm

1 stop15h 11m

San Francisco

Thu 3/20

1:50 pm-7:25 am

Nonstop10h 35m

$607

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 12/6

10:05 am-6:29 pm

1 stop16h 24m

San Francisco

Sat 12/14

1:58 pm-12:00 pm

1 stop14h 02m

$631

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 5/9

10:15 am-6:40 pm

2 stops16h 25m

San Francisco

Sat 5/17

12:30 pm-11:50 am

1 stop15h 20m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 27 results
1
2
3

Compare providers for flights from Heathrow to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-San Francisco flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London Heathrow Airport-San Francisco flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-San Francisco flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Heathrow to San Francisco

Get recent, data-driven insights about flights from Heathrow to San Francisco including ideal travel times, pricing trends, and more.

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 round-trip flight from Heathrow to San Francisco. Price data was last updated on November 15, 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 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of $276). Flying from London Heathrow Airport to San Francisco in June is currently the most expensive (average of $381). 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.

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

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 November 20, 2024.

When flying from London Heathrow Airport to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 10% versus a flight in the afternoon.

Weekly flight availability from London Heathrow Airport 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 November 20, 2024.

The most flights from LHR to SFO are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

Rainfall in San Francisco by month

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

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

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

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated November 20, 2024.
Get a feel of what it's like to fly with Scandinavian Airlines, Lufthansa and United Airlines from London to San Francisco by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Air New Zealand
8.1
Very good
529 reviews
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Delta
8.0
Very good
8,756 reviews
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

KLM
7.8
Good
1,350 reviews
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Finnair
7.7
Good
1,300 reviews
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

Austrian Airlines
7.6
Good
805 reviews
Air New Zealand
8.1
Very good
529 reviews

Overall

8.1

Crew

8.6

Entertainment

7.6

Food

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 10

The crew was great, the seats were comfy but in need of better lumbar support. I was disappointed in the movie selection. No classics, a lot of sci-fi/fantasy that hold no interest for me. All in all, B+ rating.

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?

    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 12 different airlines.

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

    According to our current data, TAP AIR PORTUGAL ($509), Scandinavian Airlines ($515), and Delta ($528) offers the cheapest pricing from London Heathrow Airport to San Francisco. TAP AIR PORTUGAL is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $551. Air New Zealand flights start at $558 while deals on Scandinavian Airlines start at $594 one-way.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to San Francisco are Air Canada (73%), Austrian Airlines (73%) and United Airlines (73%).

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

    While on average a flight from London Heathrow Airport to San Francisco is generally $1,447, our data shows the cheapest flight currently is $499. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $478 for that flight.

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

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

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

    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.

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

    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.

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of $276). Flying from London Heathrow Airport to San Francisco in June is currently the most expensive (average of $381). 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.

See more FAQs

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.

Alternative routes for Heathrow to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
London City to Las Vegas flights
London City to San Francisco flights
Heathrow to Santa Ana flights
Heathrow to Long Beach flights
Heathrow to Burbank flights
Heathrow to San Diego flights
Gatwick to Las Vegas flights
Heathrow to San Jose flights
Stansted to Los Angeles flights
Luton to Los Angeles flights
Gatwick to San Diego flights
Gatwick to San Jose flights
Heathrow to Oakland flights
Luton to San Francisco flights
Luton to Las Vegas flights
Heathrow to Sacramento flights
Gatwick to Oakland flights
Stansted to Las Vegas flights
Stansted to San Francisco flights
Gatwick to Sacramento flights
Gatwick to Ontario flights
Heathrow to Santa Rosa flights
Heathrow to Reno flights
Heathrow to Palm Springs flights
Heathrow to Medford flights
Gatwick to Palm Springs flights
Heathrow to Santa Barbara flights

Top 10 airlines flying from Heathrow to San Francisco

Discover the top 10 airlines that operate flights from Heathrow to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$415Average$634FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$476Average$650FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$507Average$648FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$514Average$634FlexibilityNo cancel feeOn-time70%
DeltaCheapest$519Average$739FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$525Average$571FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$527Average$745FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$544Average$709FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$549Average$712FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$562Average$650FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines