Cheap flights from London to Los Angeles from $646

The month of September is another great option to travel to Los Angeles, with average flight prices from London averaging around $833.

According to our data, Thursday is the cheapest day to fly to Los Angeles from London. The lowest ticket price found for a Thursday departure recently was $1,415. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,993. These prices are subject to change though, so be sure to set up a Price Alert for flights to Los Angeles.

Flying to Los Angeles from London at midday is the least expensive time of day to depart. momondo users have found prices as low as $937 when looking at flights departing at midday. Flights to Los Angeles are more costly in the afternoon, with an average ticket price of $1,907. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Los Angeles Los Angeles for the best London - Los Angeles 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 $947 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 $872 on momondo.

There are 3 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.

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

As of September 2026, prices for London to Los Angeles flights are approximately 37% more expensive when compared to flights at the same time last year.

Historically, on average around 12% 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 148 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.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday 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 September 2026, 50 flights take off from London and land in Los Angeles each day. The most common flight departure time for this route is 08:00, with 47% of daily flights taking off in the afternoon.

As of September 2026, 350 flights take off from London and land in Los Angeles each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.