Cheap flights from Los Angeles to London from £273

In general, October is the cheapest month to fly from Los Angeles to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £487. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Los Angeles averaging around £490.

On average, the least expensive day to fly to London Heathrow Airport from Los Angeles is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £519. However, this price may fluctuate depending on the airline, the season, and holidays. 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 London Heathrow Airport on Sunday is £633.

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Los Angeles to London Heathrow Airport at midday for as low as £568. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £591 on average. Flights to London Heathrow Airport from Los Angeles in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £587 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 £533 on momondo.

There are 4 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 15% on your flight if you consider stops on a Los Angeles to London Heathrow Airport flight.

As of April 2026, prices for Los Angeles to London Heathrow Airport flights are approximately 59% more expensive when compared to flights at the same time last year.

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

Virgin Atlantic, British Airways and KLM are the top three most popular airlines that fly to London Heathrow Airport from Los Angeles according to our data. Virgin Atlantic is the first choice among our users, with 49% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 12 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% 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 173 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.

Thursday 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, 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.

As of April 2026, there are 51 flights per day flying from Los Angeles to London Heathrow Airport. The most common time of day flights depart is 20:00, with 58% of flights taking off in the evening.

362 flights are operational weekly from Los Angeles to London Heathrow Airport as of April 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.