Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to San Francisco from C$ 729

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
22 janv. — 29 janv.1
1 adult

The best prices from London Heathrow to San Francisco are usually found in February or November, booked 22 days in advance, depart on a Monday or Tuesday and return on a Monday

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 17 janvier 2025.

Round-trip from

C$ 773

One-way from

C$ 729

Popular in

July

Cheapest in

February

Average price

C$ 857
Delta
  • Delta
  • 2/2-10/2
  • 1 total stop
  • 25h 05m total
  • London to San Francisco
Search Deals
WestJet
  • WestJet
  • 5/2
  • 1 total stop
  • 30h 16m total
  • London to San Francisco
Search Deals
High demand for flights, 19% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
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 17 janvier 2025.

dim. 2/26:20 a.m.LHR - SFO
1 stop14h 50mDelta
lun. 10/24:40 p.m.SFO - LHR
Nonstop10h 15mDelta
Deal found 16/1C$ 773
jeu. 13/210:30 a.m.LHR - SFO
2 stops16h 15mLufthansa
ven. 28/22:55 p.m.SFO - LHR
1 stop14h 35mLufthansa
Deal found 16/1C$ 778
mer. 12/21:45 p.m.LHR - SFO
Nonstop11h 10mUnited Airlines
mar. 25/25:25 p.m.SFO - LHR
Nonstop10h 35mUnited Airlines
Deal found 16/1C$ 779
jeu. 23/19:30 a.m.LHR - SFO
1 stop14h 30mMultiple Airlines
mer. 5/28:55 a.m.SFO - LHR
1 stop14h 00mMultiple Airlines
Deal found 16/1C$ 782
sam. 19/410:35 a.m.LHR - SFO
Nonstop11h 05mAustrian Airlines
ven. 2/57:45 p.m.SFO - LHR
Nonstop10h 25mAustrian Airlines
Deal found 15/1C$ 783
mer. 29/112:05 p.m.LHR - SFO
1 stop36h 20mSWISS
sam. 8/27:25 p.m.SFO - LHR
1 stop14h 25mSWISS
Deal found 16/1C$ 792
jeu. 23/13:20 p.m.LHR - SFO
Nonstop11h 25mFinnair
mer. 5/25:30 p.m.SFO - LHR
Nonstop10h 30mFinnair
Deal found 16/1C$ 795
ven. 14/27:10 a.m.LHR - SFO
2 stops19h 35mBrussels Airlines
dim. 23/28:35 p.m.SFO - LHR
2 stops16h 45mBrussels Airlines
Deal found 16/1C$ 819
ven. 17/18:55 a.m.LHR - SFO
1 stop19h 59mVirgin Atlantic
jeu. 6/24:40 p.m.SFO - LHR
Nonstop10h 15mVirgin Atlantic
Deal found 16/1C$ 828
dim. 20/42:05 p.m.LHR - SFO
Nonstop11h 10mBritish Airways
dim. 27/48:00 a.m.SFO - LHR
1 stop14h 25mBritish Airways
Deal found 15/1C$ 855
jeu. 3/410:20 a.m.LHR - SFO
1 stop14h 10mScandinavian Airlines
dim. 6/47:40 p.m.SFO - LHR
2 stops17h 55mScandinavian Airlines
Deal found 16/1C$ 877
jeu. 17/412:10 p.m.LHR - SFO
1 stop16h 32mKLM
sam. 26/43:00 p.m.SFO - LHR
1 stop13h 15mKLM
Deal found 15/1C$ 962

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 629,999 searches. Data last updated 17 janvier 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

dim. 2/2

6:20 a.m.-1:10 p.m.

1 stop14h 50m

San Francisco

lun. 10/2

4:40 p.m.-10:55 a.m.

Nonstop10h 15m

C$ 773

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

jeu. 13/2

10:30 a.m.-6:45 p.m.

2 stops16h 15m

San Francisco

ven. 28/2

2:55 p.m.-1:30 p.m.

1 stop14h 35m

C$ 778

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

mer. 12/2

1:45 p.m.-4:55 p.m.

Nonstop11h 10m

San Francisco

mar. 25/2

5:25 p.m.-12:00 p.m.

Nonstop10h 35m

C$ 779

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

sam. 1/2

4:20 p.m.-6:45 p.m.

2 stops58h 25m

San Francisco

dim. 9/2

8:25 a.m.-11:05 a.m.

1 stop18h 40m

C$ 788

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

mer. 29/1

12:05 p.m.-4:25 p.m.

1 stop36h 20m

San Francisco

sam. 8/2

7:25 p.m.-5:50 p.m.

1 stop14h 25m

C$ 792

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

ven. 14/2

7:10 a.m.-6:45 p.m.

2 stops19h 35m

San Francisco

dim. 23/2

8:35 p.m.-9:20 p.m.

2 stops16h 45m

C$ 819

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

dim. 20/4

2:05 p.m.-5:15 p.m.

Nonstop11h 10m

San Francisco

dim. 27/4

8:00 a.m.-6:25 a.m.

1 stop14h 25m

C$ 855

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

jeu. 3/4

10:20 a.m.-4:30 p.m.

1 stop14h 10m

San Francisco

dim. 6/4

7:40 p.m.-9:35 p.m.

2 stops17h 55m

C$ 877

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

mar. 4/2

11:45 a.m.-3:00 p.m.

Nonstop11h 15m

San Francisco

sam. 8/2

10:18 a.m.-6:20 a.m.

1 stop36h 02m

C$ 931

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

jeu. 17/4

12:10 p.m.-8:42 p.m.

1 stop16h 32m

San Francisco

sam. 26/4

3:00 p.m.-12:15 p.m.

1 stop13h 15m

C$ 962

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Showing 1-10 of 22 results
1
2
3

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 10 January 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Francisco, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 276). Flying from London Heathrow Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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 17 janvier 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to San Francisco as you normally would.

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 17 janvier 2025.

The most flights from LHR to SFO are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 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 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 17 janvier 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, SWISS and United Airlines from London to San Francisco by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very good
8,511 reviews
Check prices

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    For a flight from London Heathrow to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 19.0 km from the centre of the city. San Francisco is the only San Francisco airport and it handles 30 inbound flights from London Heathrow per day. 1 airline has flights to San Francisco from London Heathrow on a regular basis.

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

    Cheapflights users have booked flights from London Heathrow Airport to San Francisco round-trip from C$ 773. Other airlines that can offer you cheap pricing are Lufthansa, from C$ 778, and United Airlines, from C$ 779. Delta is currently priced 20% below the average price you’ll pay for this route.

  • 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 WestJet, which is currently one of the cheapest options available, starting at C$ 729. TAP AIR PORTUGAL flights start at C$ 802 while deals on JetBlue start at C$ 1,028 one-way.

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

    Consider Air Canada (63%), Austrian Airlines (63%) or United Airlines (63%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to San Francisco.

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

    Looking for the cheapest flight from London Heathrow Airport to San Francisco? While on average our users pay C$ 3,782, our data indicates the cheapest price to be C$ 3,089. The most popular route (London Heathrow - San Francisco), is priced around C$ 750.

  • 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 C$ 276). Flying from London Heathrow Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Richmond
San Ramon
Newark
Alameda
Novato
Burlingame
Redwood City
South San Francisco
Scotts Valley
San Bruno
Belmont
Millbrae
Santa Clara

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.

Top airline flying from Heathrow to San Francisco

Discover the top airline 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 629,999 searches. Data last updated 17 janvier 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 915AverageC$ 915FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Heathrow to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Heathrow to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Heathrow to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.