Cheap flights from New York to London from $397

If you aren’t able to travel during the month of February, then book flights to London from New York during January instead. Flights to London in January, while not as cheap as those in February, still average around $790.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $904. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from New York to London for around $2,416.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as $1,211. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around $1,626.

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

You are more likely to see cheaper flights to London from New York when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,075 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from New York for as low as $991 on momondo.

There are 3 cabin classes available to choose from on New York 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 9% on your flight if you consider stops on a New York to London flight.

As of October 2026, prices for New York to London flights are approximately 22% cheaper 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 have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Dublin (DUB) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Flights via Copenhagen (CPH) offer the lowest average return price of $1,484.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 10h 10m.

Dublin (DUB) has the shortest average stopover time for this route: 1h 43m.

The number of flights available between New York and London is 146 per day as of October 2026. The most frequent departure time is 18:00, with 76% of daily flights leaving in the evening.

As of October 2026, 1,022 flights take off from New York and land in London each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.