Cheap flights from London to Los Angeles from £340

The month of September is, on average, the cheapest month to fly to Los Angeles from London, with most prices found around £398. 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 £404.

The cheapest day to depart from London 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 £496. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £551. 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 to Los Angeles during this time can be as low as £497. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £552 on average. Flights to Los Angeles from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Los Angeles from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Los Angeles for around £485 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 for as low as £444 on momondo.

There are 4 cabin classes available to choose from on London 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 21% on your flight if you consider stops on a London to Los Angeles flight.

As of March 2026, prices for London to Los Angeles flights are approximately 20% more expensive when compared to flights at the same time last year.

SWISS, United Airlines, and British Airways are the most popular carriers operating from London to Los Angeles

Virgin Atlantic, British Airways and Lufthansa are the top three most popular airlines that fly to Los Angeles from London according to our data. Virgin Atlantic is the first choice among our users, with 48% of people opting to fly with this airline when travelling to Los Angeles. Keep in mind that there are 20 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 at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Monday 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: 30% of momondo users choosing one-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average return price of £358.

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 13h 37m.

Istanbul (IST) has the shortest average stopover time for this route: 1h 18m.

As of March 2026, there are 41 flights per day flying from London to Los Angeles. The most common time of day flights depart is 15:00, with 66% of flights taking off in the afternoon.

The number of flights available between London and Los Angeles is 292 per week as of March 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.