Cheap flights from Los Angeles to London from $499

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Los Angeles, with most prices found around $964. If you aren’t able to travel during the month of February, then book flights to London Heathrow Airport from Los Angeles during January instead. Flights to London Heathrow Airport in January, while not as cheap as those in February, still average around $1,140.

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,155. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Los Angeles to London Heathrow Airport for around $1,714.

In the evening is the cheapest time of day to fly from Los Angeles to London Heathrow Airport when you can find flight prices for as low as $1,327. Flying to London Heathrow Airport in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to London Heathrow Airport is in the afternoon when prices are around $1,676.

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

You are more likely to see cheaper flights to London Heathrow Airport from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,398 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Los Angeles for as low as $1,304 on momondo.

There are 3 cabin classes available to choose from on Los Angeles to London Heathrow Airport 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 12% on your flight if you consider stops on a Los Angeles to London Heathrow Airport flight.

As of September 2026, prices for Los Angeles to London Heathrow Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

Historically, on average around 9% of flights between Los Angeles and London have experienced a delay on any given week. The average delay length over the past 12 months has been 184 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night 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. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

45 flights are operational daily from Los Angeles to London Heathrow Airport as of September 2026. The most popular departure time for this route is 15:00, with 54% of flights per day taking off in the afternoon.

As of September 2026, 317 flights take off from Los Angeles and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.