Cheap flights from New York John F Kennedy Intl Airport to London from $188

The cheapest month to fly to London from New York John F Kennedy Intl Airport is in January. Flight prices, which tend to average around $523, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from New York John F Kennedy Intl Airport averaging around $527.

The cheapest day to depart from New York John F Kennedy Intl Airport to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $733. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $778. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from New York John F Kennedy Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $723 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $782. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from New York John F Kennedy Intl to London Gatwick for the best New York John F Kennedy Intl - London flight prices

You are more likely to see cheaper flights to London from New York John F Kennedy Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $677 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from New York John F Kennedy Intl Airport for as low as $656 on momondo.

There are 4 cabin classes available to choose from on New York John F Kennedy Intl Airport to London 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 16% on your flight if you consider stops on a New York John F Kennedy Intl Airport to London flight.

As of August 2026, prices for New York John F Kennedy Intl Airport to London flights are approximately 11% cheaper when compared to flights at the same time last year.

Norse Atlantic UK, Icelandair, and Delta are the most popular carriers operating from New York John F Kennedy Intl to London

British Airways, Virgin Atlantic and Delta are the top three most popular airlines that fly to London from New York John F Kennedy Intl Airport according to our data. British Airways is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London. Keep in mind that there are 18 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between New York and London have experienced a delay on any given week. The average delay length over the past 12 months has been 165 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of $392.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 9h 05m.

Amsterdam (AMS) has the shortest average layover time for this route: 1h 13m.

As of August 2026, 94 flights take off from New York John F Kennedy Intl Airport and land in London each day. The most common flight departure time for this route is 6:00PM, with 83% of daily flights taking off in the evening.

662 flights are operational weekly from New York John F Kennedy Intl Airport to London as of August 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.