Cheap flights from Los Angeles to London Heathrow Airport from $427
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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Los Angeles to London Heathrow are usually found in September or October, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Find flight deals from Los Angeles to Heathrow
Cheapest flights from Los Angeles to HeathrowExplore the most affordable flight options available from Los Angeles to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2025.
Explore the most affordable flight options available from Los Angeles to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2025.
Cheap flight deals from Los Angeles to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) to Heathrow (LHR). 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 21 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Los Angeles to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Departure
Return
Price
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Tue 10/2
16:45-17:30
1 stop16h 45m
London Heathrow
Mon 16/2
18:30-15:00
1 stop28h 30m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 4/3
07:45-16:00
2 stops24h 15m
London Heathrow
Sun 8/3
06:40-17:00
2 stops18h 20m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 21/1
07:45-16:00
2 stops24h 15m
London Heathrow
Fri 30/1
07:05-17:00
2 stops17h 55m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Tue 10/2
06:20-09:20
2 stops19h 00m
London Heathrow
Tue 17/2
07:05-17:00
2 stops17h 55m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Tue 24/2
06:20-09:20
2 stops19h 00m
London Heathrow
Sat 28/2
06:40-17:00
1 stop18h 20m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Wed 28/1
07:45-09:20
2 stops17h 35m
London Heathrow
Thu 12/2
10:20-17:00
1 stop14h 40m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Mon 10/11
13:10-16:00
2 stops18h 50m
London Heathrow
Mon 17/11
06:40-17:00
1 stop18h 20m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Fri 14/11
10:00-16:00
2 stops22h 00m
London Heathrow
Sat 22/11
06:40-17:00
2 stops18h 20m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Sun 1/3
19:30-17:40
1 stop14h 10m
London Heathrow
Tue 10/3
06:40-18:00
1 stop18h 20m
Los AngelesLondon
LAX - LHR
LAXLHR
Los Angeles
Fri 5/12
10:00-16:00
2 stops22h 00m
London Heathrow
Sun 7/12
10:20-17:00
1 stop14h 40m
Best time to book a flight from Los Angeles to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Los Angeles with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Los Angeles to London Heathrow Airport
How far ahead should I book a flight from Los Angeles to London Heathrow Airport?
The price you pay for your flight from Los Angeles to London Heathrow Airport 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 Los Angeles to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Los Angeles to London Heathrow Airport (average of $760). Flying from Los Angeles to London Heathrow Airport in June is currently the most expensive (average of $1,219). 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 LAX to LHR?
When flying from Los Angeles to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Los Angeles to London delayed?
About 14% of weekly flights between Los Angeles and London have experienced delays in the past year, with the average delay time being 155 minutes.
What is the most punctual flight time for Los Angeles to London flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday 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 Los Angeles to London flights?
Over the past year, Qantas Airways have had the lowest number of delays on this route, with no flights being classified as delayed.
Related info for your journey
Find useful and relevant information for your journey from Los Angeles to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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How does Cheapflights help users find flights from Los Angeles to Heathrow?
Cheapflights helps you search for flights from Los Angeles to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Los Angeles to Heathrow?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Los Angeles.
Can Cheapflights find flights from Los Angeles to Heathrow with no change fees?
Need flexible booking options for your flight to Heathrow from Los Angeles? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Los Angeles to Heathrow become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!