Cheap flights from New York John F Kennedy Intl Airport to London from C$ 396

In general, February is the cheapest month to fly from New York John F Kennedy Intl Airport to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 749. If you aren’t able to travel to London during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 752.

According to our data, Saturday is the cheapest day to fly to London from New York John F Kennedy Intl Airport. The lowest ticket price found for a Saturday departure recently was C$ 1,067. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from New York John F Kennedy Intl Airport to London for around C$ 1,389.

Our most recent data shows that the best time of day to fly to London is in the afternoon. Flights from New York John F Kennedy Intl Airport to London during this time can be as low as C$ 1,112. In the morning is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,166 per ticket.

Fly from New York John F Kennedy Intl to London Heathrow 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 C$ 1,054 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 C$ 983 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 39% on your flight if you consider stops on a New York John F Kennedy Intl Airport to London flight.

As of October 2026, prices for New York John F Kennedy Intl Airport to London flights are approximately 6% more expensive when compared to flights at the same time last year.

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 early afternoon 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. Sunday has historically seen more delays on average compared to the rest of the week.

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

As of October 2026, there are 78 flights per day flying from New York John F Kennedy Intl Airport to London. The most common time of day flights depart is 6:00p.m., with 84% of flights taking off in the evening.

550 flights are operational weekly from New York John F Kennedy Intl Airport to London as of October 2026. The most popular departure day for this route is Sun, with 20% of flights per week taking off on this day.