Cheap flights from London Heathrow Airport to San Francisco from C$ 760
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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
28 Nov — 5 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to San Francisco are usually found in February or January, booked 23 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from Heathrow to San Francisco
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
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 29 October 2026.
Thu 5/112:45 p.m. -
1 stop16h 00m
Thu 10/129:40 a.m. -
1 stop18h 40m
Deal found 28/10C$ 802
Wed 18/112:45 p.m. -
1 stop14h 02m
Mon 23/116:00 a.m. -
1 stop22h 20m
Deal found 27/10C$ 804
Sat 7/112:45 p.m. -
1 stop14h 58m
Mon 7/1212:39 p.m. -
1 stop15h 41m
Deal found 24/10C$ 806
Mon 23/112:45 p.m. -
1 stop14h 58m
Wed 9/127:00 a.m. -
1 stop21h 20m
Deal found 26/10C$ 807
Sat 7/112:45 p.m. -
1 stop14h 02m
Tue 2/32:45 p.m. -
1 stop13h 35m
Deal found 29/10C$ 814
Sat 21/112:45 p.m. -
1 stop16h 01m
Tue 1/129:40 a.m. -
1 stop18h 40m
Deal found 28/10C$ 817
Tue 10/112:45 p.m. -
1 stop14h 02m
Wed 2/129:40 a.m. -
1 stop18h 40m
Deal found 25/10C$ 818
Sun 8/112:45 p.m. -
1 stop28h 30m
Sun 15/116:08 a.m. -
1 stop22h 12m
Deal found 28/10C$ 824
Sun 8/112:45 p.m. -
1 stop26h 56m
Tue 17/113:08 p.m. -
1 stop13h 12m
Deal found 28/10C$ 831
Wed 25/112:45 p.m. -
1 stop36h 17m
Sun 10/19:25 a.m. -
1 stop18h 55m
Deal found 27/10C$ 832
Wed 25/112:45 p.m. -
1 stop36h 17m
Wed 16/611:25 a.m. -
1 stop19h 40m
Deal found 24/10C$ 834
Best flights from Heathrow to San Francisco
Discover carefully curated flight deals from Heathrow to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 29 October 2026.
Wed 11/112:45 p.m. -
1 stop14h 58m
Thu 3/1212:39 p.m. -
1 stop15h 41m
Deal found 24/10C$ 806
Thu 10/126:30 a.m. -
1 stop13h 15m
Thu 24/124:40 p.m. -
Nonstop10h 15m
Deal found 28/10C$ 920
Fri 12/26:30 a.m. -
1 stop13h 15m
Sat 20/24:40 p.m. -
Nonstop10h 15m
Deal found 26/10C$ 941
Mon 1/32:25 p.m. -
2 stops34h 05m
Mon 8/37:25 p.m. -
1 stop14h 25m
Deal found 28/10C$ 970
Sat 6/211:35 a.m. -
2 stops16h 42m
Tue 23/27:00 a.m. -
1 stop15h 20m
Deal found 25/10C$ 1,001
Thu 17/127:50 p.m. -
2 stops27h 00m
Wed 30/124:45 p.m. -
1 stop15h 15m
Deal found 28/10C$ 1,117
Wed 11/112:45 p.m. -
1 stop14h 02m
Sat 27/22:45 p.m. -
1 stop13h 35m
Deal found 29/10C$ 814
Fri 25/1210:55 a.m. -
1 stop18h 02m
Fri 8/14:40 p.m. -
Nonstop10h 15m
Deal found 24/10C$ 946
Tue 24/1111:50 a.m. -
Nonstop11h 00m
Sat 9/16:00 a.m. -
1 stop17h 45m
Deal found 27/10C$ 963
Wed 25/1111:50 a.m. -
Nonstop11h 00m
Sat 9/12:00 p.m. -
1 stop22h 10m
Deal found 27/10C$ 963
Tue 15/129:50 a.m. -
1 stop18h 59m
Mon 10/58:55 a.m. -
1 stop20h 55m
Deal found 28/10C$ 1,015
Direct flights from Heathrow to San Francisco
Explore direct flight options from Heathrow to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 October 2026.
Thu 10/1211:50 a.m. -
Nonstop11h 00m
Thu 24/124:40 p.m. -
Nonstop10h 15m
Deal found 28/10C$ 945
Thu 10/1211:50 a.m. -
Nonstop11h 00m
Thu 24/124:40 p.m. -
Nonstop10h 15m
Deal found 28/10C$ 946
Mon 23/1111:50 a.m. -
Nonstop11h 00m
Wed 9/124:40 p.m. -
Nonstop10h 15m
Deal found 25/10C$ 948
Wed 18/1111:50 a.m. -
Nonstop11h 00m
Wed 25/114:40 p.m. -
Nonstop10h 15m
Deal found 27/10C$ 949
Thu 3/1211:50 a.m. -
Nonstop11h 00m
Wed 9/124:40 p.m. -
Nonstop10h 15m
Deal found 26/10C$ 950
Tue 24/1111:50 a.m. -
Nonstop11h 00m
Mon 11/14:40 p.m. -
Nonstop10h 15m
Deal found 27/10C$ 957
Thu 10/1211:50 a.m. -
Nonstop11h 00m
Thu 7/14:40 p.m. -
Nonstop10h 15m
Deal found 28/10C$ 959
Fri 26/211:50 a.m. -
Nonstop11h 00m
Mon 15/35:40 p.m. -
Nonstop10h 15m
Deal found 27/10C$ 960
Last-minute flights from Heathrow to San Francisco
Discover last-minute flight deals from Heathrow to San Francisco. Data last updated 29 October 2026 and is based on user searches.
Thu 5/112:45 p.m. -
1 stop16h 00m
Thu 10/129:40 a.m. -
1 stop18h 40m
Deal found 28/10C$ 802
Sat 7/112:45 p.m. -
1 stop14h 58m
Mon 7/1212:39 p.m. -
1 stop15h 41m
Deal found 24/10C$ 806
Sat 7/112:45 p.m. -
1 stop14h 02m
Tue 2/32:45 p.m. -
1 stop13h 35m
Deal found 29/10C$ 814
Sun 8/112:45 p.m. -
1 stop28h 30m
Sun 15/116:08 a.m. -
1 stop22h 12m
Deal found 28/10C$ 824
Sun 8/112:45 p.m. -
1 stop31h 25m
Wed 3/34:44 p.m. -
1 stop35h 36m
Deal found 28/10C$ 831
Tue 10/112:45 p.m. -
1 stop14h 02m
Wed 2/129:40 a.m. -
1 stop18h 40m
Deal found 25/10C$ 818
Wed 18/112:45 p.m. -
1 stop14h 02m
Mon 23/116:00 a.m. -
1 stop22h 20m
Deal found 27/10C$ 804
Sat 21/112:45 p.m. -
1 stop16h 01m
Sun 6/129:40 a.m. -
1 stop18h 40m
Deal found 28/10C$ 817
Mon 23/112:45 p.m. -
1 stop14h 58m
Wed 9/127:00 a.m. -
1 stop21h 20m
Deal found 26/10C$ 807
Wed 25/112:45 p.m. -
1 stop36h 17m
Sat 9/110:25 a.m. -
1 stop17h 55m
Deal found 27/10C$ 832
Wed 25/112:45 p.m. -
1 stop36h 17m
Wed 16/611:25 a.m. -
1 stop19h 40m
Deal found 24/10C$ 834
One-way flights from Heathrow to San Francisco
Search for one-way flight options from Heathrow to San Francisco. Find affordable one-way fares based on user searches. Data last updated 29 October 2026.
Sun 10/18:05 p.m. -
1 stop28h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 760
Sun 13/127:30 p.m. -
2 stops29h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 24/10C$ 768
Thu 14/110:05 a.m. -
Nonstop11h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 778
Fri 11/127:40 a.m. -
2 stops18h 09m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 29/10C$ 779
Fri 16/44:15 p.m. -
Nonstop11h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 785
Thu 7/18:00 a.m. -
2 stops25h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 28/10C$ 786
Sat 24/44:15 p.m. -
Nonstop11h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 26/10C$ 788
Find 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 29 October 2026.
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 7,457,451 searches. Data last updated 29 October 2026.
Use the filters below to find and compare flights from London Heathrow Airport to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sun 13/12
7:30 p.m.-4:30 p.m.
2 stops29h 00m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 768
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Thu 14/1
10:05 a.m.-1:20 p.m.
Nonstop11h 15m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 778
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Tue 15/12
1:00 p.m.-9:33 p.m.
1 stop16h 33m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 779
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Thu 7/1
8:00 a.m.-9:13 p.m.
2 stops21h 13m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 786
Quickest round-trip
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sat 24/4
4:15 p.m.-7:20 p.m.
Nonstop11h 05m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 788
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Thu 22/4
1:00 p.m.-4:05 p.m.
Nonstop11h 05m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 788
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sat 9/1
1:00 p.m.-7:34 a.m.
2 stops26h 34m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 790
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Wed 7/4
4:15 p.m.-7:20 p.m.
Nonstop11h 05m
San Francisco
Wed 31/12
12:00 a.m.-9:00 a.m.
Nonstop0h 00m
C$ 797
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Wed 11/11
2:45 p.m.-9:43 p.m.
1 stop14h 58m
San Francisco
Thu 3/12
12:39 p.m.-12:20 p.m.
1 stop15h 41m
C$ 806
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Wed 11/11
2:45 p.m.-8:47 p.m.
1 stop14h 02m
San Francisco
Sat 27/2
2:45 p.m.-12:20 p.m.
1 stop13h 35m
C$ 814
Flights are sorted by cheapest round-trip flights first.
Deals found on 24/10
Showing 1-10 of 21 resultsSorted by cheapest first
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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.
LHR-SFO
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.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to San Francisco
Prices
Delays
How far ahead should I book a flight from London Heathrow Airport to San Francisco?
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, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of C$ 877). Flying from London Heathrow Airport to San Francisco in December is currently the most expensive (average of C$ 1,209). 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 29 October 2026.
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.
How much does it cost to fly round-trip from London Heathrow Airport to San Francisco?
Airfare is typical for this route at the moment.
London Heathrow Airport to San Francisco flights typically cost between C$ 799 and C$ 1,099 in November.The cheapest round-trip price found within the last 5 days was C$ 802 on Alaska Airlines (9 Nov-17 Nov).
How often are flights from London to San Francisco delayed?
About 13% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 144 minutes.
What is the most punctual flight time for London to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to San Francisco flights?
Over the past year, United Airlines has had the lowest number of delays on this route, with just 11% of flights being delayed.
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 29 October 2026.
See what other customers who have flown with Lufthansa from London Heathrow Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
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 17.7 km from the centre of the city. San Francisco is the only San Francisco airport and it handles 26 inbound flights from London Heathrow per day. 1 airline has flights to San Francisco from London Heathrow on a regular basis.
How long is the flight from London Heathrow Airport to San Francisco?
A quick flight from London Heathrow Airport to San Francisco can take about 13h 15m. United Airlines provides one of the quickest options available for as low as C$ 920. Airlines will cover a distance of 8610 km. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly 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$ 1,686.
What are the most reliable airlines from London Heathrow Airport to San Francisco?
Consider Air Canada (77%), Austrian Airlines (77%) or United Airlines (77%) 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$ 3,510, our data indicates the cheapest price to be C$ 3,032. The most popular route (London Heathrow - San Francisco), is priced around C$ 903.
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, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of C$ 877). Flying from London Heathrow Airport to San Francisco in December is currently the most expensive (average of C$ 1,209). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 29 October 2026.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 October 2026.
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 7,457,451 searches. Data last updated 29 October 2026.
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.
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