Cheap flights from New York John F Kennedy Intl Airport to London from C$ 397

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from New York John F Kennedy Intl Airport, with most prices found around C$ 733. If you aren’t able to travel to London Heathrow Airport during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 733.

According to our data, Monday is the cheapest day to fly to London Heathrow Airport from New York John F Kennedy Intl Airport. The lowest ticket price found for a Monday departure recently was C$ 966. 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 Tuesday, 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 Heathrow Airport for around C$ 1,046.

Our data shows that the cheapest New York John F Kennedy Intl Airport to London Heathrow Airport flights are usually those with departure times in the morning. Our users have found flights to London Heathrow Airport in the morning for as low as C$ 936. In the evening is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,002 per ticket.

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 C$ 892 when searching weeks out. 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 C$ 821 on momondo.

There are 4 cabin classes available to choose from on New York John F Kennedy Intl Airport to London Heathrow Airport 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 59% on your flight if you consider stops on a New York John F Kennedy Intl Airport to London Heathrow Airport flight.

As of June 2026, prices for New York John F Kennedy Intl Airport to London Heathrow Airport flights are approximately 3% 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 155 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. Thursday 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 10% of their flights experiencing any sort of delay.

As of June 2026, there are 101 flights per day flying from New York John F Kennedy Intl Airport to London Heathrow Airport. The most common time of day flights depart is 6:00p.m., with 84% of flights taking off in the evening.

The number of flights available between New York John F Kennedy Intl Airport and London Heathrow Airport is 712 per week as of June 2026. The most frequent departure day is Fri, with 15% of weekly flights leaving on this day.