Cheap flights from New York John F Kennedy Intl Airport to London from £139

In general, January is the cheapest month to fly from New York John F Kennedy Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £384. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from New York John F Kennedy Intl Airport averaging around £393.

On average, the least expensive day to fly to London Heathrow Airport from New York John F Kennedy Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as £406. However, this price may fluctuate depending on the airline, the season, and holidays. 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 Heathrow Airport on Saturday is £459.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from New York John F Kennedy Intl Airport to London Heathrow Airport in the morning for as low as £413. 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 afternoon when prices are £452 on average. Flights to London Heathrow Airport from New York John F Kennedy Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport 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 Heathrow Airport for around £441 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 New York John F Kennedy Intl Airport for as low as £426 on momondo.

There are 4 cabin classes available to choose from on New York John F Kennedy Intl to London Heathrow 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 New York John F Kennedy Intl Airport to London Heathrow Airport.

As of February 2026, prices for New York John F Kennedy Intl Airport to London Heathrow Airport flights are approximately 43% cheaper when compared to flights at the same time last year.

British Airways, LEVEL, and Delta are the most popular carriers operating from New York John F Kennedy Intl to London Heathrow

Virgin Atlantic, British Airways and KLM are the top three most popular airlines that fly to London Heathrow Airport from New York John F Kennedy Intl Airport 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 London Heathrow Airport. Keep in mind that there are 10 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 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 151 minutes.

Generally, flights departing in the morning 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. Thursday has historically seen more delays on average compared to the rest of the week.

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

The number of flights available between New York John F Kennedy Intl Airport and London Heathrow Airport is 95 per day as of February 2026. The most frequent departure time is 18:00, with 83% of daily flights leaving in the evening.

670 flights are operational weekly from New York John F Kennedy Intl Airport to London Heathrow Airport as of February 2026. The most popular departure day for this route is Wed, with 15% of flights per week taking off on this day.