Cheap flights from London Heathrow Airport to Los Angeles from $456

The month of September is, on average, the cheapest month to fly to Los Angeles from London Heathrow Airport, with most prices found around $541. If you aren’t able to travel during the month of September, then book flights to Los Angeles from London Heathrow Airport during February instead. Flights to Los Angeles in February, while not as cheap as those in September, still average around $548.

Our data shows that Friday is the least expensive day to fly to Los Angeles. Tickets to fly out on this day can be as low as $651. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Los Angeles on Sunday is $737.

Our most recent data shows that the best time of day to fly to Los Angeles is at noon. Flights from London Heathrow Airport to Los Angeles during this time can be as low as $677. In the afternoon is when there is more demand to fly to Los Angeles, so prices are often more expensive at around $685 per ticket.

Fly from London Heathrow to Los Angeles Los Angeles for the best London Heathrow - Los Angeles 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 $643 when searching weeks out. 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 $587 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Los Angeles 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 2% 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.

Austrian Airlines, SWISS, and LEVEL are the most popular carriers operating from London Heathrow to Los Angeles Los Angeles

British Airways, American Airlines and Virgin Atlantic are the top three most popular airlines that fly to Los Angeles from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Los Angeles. Keep in mind that there are 12 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 149 minutes.

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

Thursday is statistically the day of the week which experiences the fewest number of 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 least number of 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: 30% of momondo users choosing 1-stop flights on this route connected there.

Flights via Dallas (DFW) offer the lowest average round-trip price of $630.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 15h 35m.

Dallas (DFW) has the shortest average layover time for this route: 1h 52m.

As of March 2026, 44 flights take off from London Heathrow Airport and land in Los Angeles each day. The most common flight departure time for this route is 11:00AM, with 60% of daily flights taking off in the afternoon.

As of March 2026, 312 flights take off from London Heathrow Airport and land in Los Angeles each week. The most common flight departure day for this route is Sat, with 15% of weekly flights taking off on this day.