Cheap flights from London Heathrow Airport to Los Angeles from $505

The month of September is, on average, the cheapest month to fly to Los Angeles from London Heathrow Airport, with most prices found around $575. 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 $575.

Our data shows that Thursday is the least expensive day to fly to Los Angeles. Tickets to fly out on this day can be as low as $694. 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 $760.

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 $711. In the afternoon is when there is more demand to fly to Los Angeles, so prices are often more expensive at around $727 per ticket.

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 $672 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 $605 on momondo.

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

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Los Angeles.

As of August 2026, prices for London Heathrow Airport to Los Angeles flights are approximately 23% cheaper when compared to flights at the same time last year.

British Airways, Austrian Airlines, and Delta are the most popular carriers operating from London Heathrow to Los Angeles

British Airways, Virgin Atlantic and American Airlines 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 53% 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 11% 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 146 minutes.

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

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday 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: 25% 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 Seattle (SEA) have the shortest average one-way travel time: 14h 11m.

Seattle (SEA) has the shortest average layover time for this route: 1h 13m.

As of August 2026, 51 flights take off from London Heathrow Airport and land in Los Angeles each day. The most common flight departure time for this route is 4:00PM, with 49% of daily flights taking off at noon.

As of August 2026, 357 flights take off from London Heathrow Airport and land in Los Angeles each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.