Cheap flights from the United States to London from $255

In general, April is the cheapest month to fly from United States to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $56. If you are unable to visit London Gatwick Airport during the month of April, then departing from United States during the month January is also very affordable. Most momondo users find prices during this month for around $94.

The cheapest day to depart from United States to London Gatwick Airport is on a Wednesday when prices can be found for as low as $507. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Saturday is $608.

Flying to London Gatwick Airport from United States in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $517 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $568 per ticket.

Fly from Miami to London Gatwick for the best United States - London Gatwick flight prices

You are more likely to see cheaper flights to London Gatwick Airport from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around $555 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from United States for as low as $445 on momondo.

Icelandair, Norse Atlantic UK, and TAP AIR PORTUGAL are the most popular carriers operating from United States to London Gatwick

Norse Atlantic UK, British Airways and Icelandair are the top three most popular airlines that fly to London Gatwick Airport from United States according to our data. Norse Atlantic UK is the first choice among our users, with 54% of people opting to fly with this airline when traveling to London Gatwick Airport. Keep in mind that there are 14 different airlines that fly to London Gatwick Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% of flights between United States and London have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Norse Atlantic Airways have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

3 flights are operational weekly from United States to London Gatwick Airport as of May 2026. The most popular departure day for this route is Tue, with 33% of flights per week taking off on this day.

On average, it takes 6h 30m to fly from United States to London Gatwick Airport if you fly out of Boston (the most popular airport in United States) and into London Heathrow Airport (the most popular airport in London Gatwick Airport). If you’re flying out of New York and into London Heathrow Airport, then the flight time is around 6h 55m.