Cheap flights from London Heathrow Airport to Los Angeles from £340

The month of September is, on average, the cheapest month to fly to Los Angeles from London Heathrow Airport, with most prices found around £407. If you aren’t able to travel to Los Angeles during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £412.

The cheapest day to depart from London Heathrow Airport to Los Angeles is on a Wednesday. Travellers who choose to depart for Los Angeles on a Wednesday will often find tickets for as low as £499. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £553. These prices are subject to change though, so be sure to set up a Price Alert for flights to Los Angeles.

Our most recent data shows that the best time of day to fly to Los Angeles is in the morning. Flights from London Heathrow Airport to Los Angeles during this time can be as low as £493. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £553 on average. Flights to Los Angeles from London Heathrow Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from London Heathrow to Los Angeles for the best London Heathrow - Los Angeles flight prices

You are more likely to see cheaper flights to Los Angeles from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Los Angeles for around £483 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Los Angeles from London Heathrow Airport for as low as £441 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Los Angeles flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 28% on your flight if you consider stops on a London Heathrow Airport to Los Angeles flight.

As of March 2026, prices for London Heathrow Airport to Los Angeles flights are approximately 1% more expensive when compared to flights at the same time last year.

SWISS, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from London Heathrow to Los Angeles

Virgin Atlantic, British Airways and Lufthansa are the top three most popular airlines that fly to Los Angeles from London Heathrow Airport according to our data. Virgin Atlantic is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Los Angeles. Keep in mind that there are 19 different airlines that fly to Los Angeles on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between London and Los Angeles have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

Dublin (DUB) was the most common stop: 34% of momondo users choosing one-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average return price of £359.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 50m.

Denver (DEN) has the shortest average stopover time for this route: 1h 14m.

The number of flights available between London Heathrow Airport and Los Angeles is 20 per day as of March 2026. The most frequent departure time is 11:00, with 60% of daily flights leaving in the afternoon.

As of March 2026, 140 flights take off from London Heathrow Airport and land in Los Angeles each week. The most common flight departure day for this route is Fri, with 31% of weekly flights taking off on this day.