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In general, September is the cheapest month to fly from London to North America. Due to it being the “off-season” during this time, you can expect flight prices to be around £356. The month of March is another great option to travel to North America, with average flight prices from London averaging around £363.
The cheapest day to depart from London to North America is on a Thursday when prices can be found for as low as £470. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £535. These prices are subject to change though, so be sure to set up a Price Alert for flights to North America.
Our data shows that the cheapest London to North America flights are usually those with departure times in the afternoon. Our users have found flights to North America in the afternoon for as low as £486. Flights in the evening are often more expensive, with an average ticket price of £564.
Fly from London Gatwick to Orlando for the best London – North America flight prices
You are more likely to see cheaper flights to North America from London when booking weeks ahead of your departure date. In general, you can expect to find flights to North America for around £443 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to North America from London for as low as £404 on momondo.
There are 4 cabin classes available to choose from on London to North America 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 2% on your flight if you consider stops on a London to North America flight.
As of February 2026, there are 171 flights per day flying from London to North America. The most common time of departure is 11:00, with 51% of flights taking off in the afternoon.
Norse Atlantic UK, Delta, and KLM are the most popular carriers operating from London to North America
Virgin Atlantic, British Airways and Lufthansa are the top three most popular airlines that fly to North America from London according to our data. Virgin Atlantic is the first choice among our users, with 51% of people opting to fly with this airline when travelling to North America. Keep in mind that there are 26 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.
1,198 flights are operational weekly from London to North America as of February 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.
On average, a flight from London to North America takes 8 hours 30 minutes. Flights from other popular cities in the UK may vary in length. Below are a few examples of popular routes and their flight times.
In terms of precipitation, rainfall in North America ranges from 71.0 – 114.0 mm per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit North America when rainfall is around 71.0 mm.
If weather is an important factor for your trip to North America, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).


















