Cheap flights from London to New York from $423

The cheapest month to fly to Newark Airport from London is in September. Flight prices, which tend to average around $512, are often lower during this time because this is during the off-season. If you don’t want to visit Newark Airport in September, then you should wait until October to fly from London, when ticket prices are also cheap, with an average price of $523.

The cheapest day to depart on your flight to Newark Airport is on a Wednesday when prices can be found for as low as $617. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to Newark Airport for around $734.

The cheapest time of day to fly to Newark Airport is in the morning when flights can be purchased for as low as $635. Flights in the evening are often more expensive with an average ticket price of $1,029.

Fly from London Heathrow to Newark for the best London - Newark flight prices

You are more likely to see cheaper flights to Newark Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Newark Airport for around $619 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Newark Airport from London for as low as $556 on momondo.

There are 4 cabin classes available to choose from on London to Newark 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 12% on your flight if you consider stops on a London to Newark Airport flight.

As of March 2026, prices for London to Newark Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

Icelandair, United Airlines, and Delta are the most popular carriers operating from London to Newark

United Airlines, Lufthansa and British Airways are the top three most popular airlines that fly to Newark Airport from London according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Newark Airport. Keep in mind that there are 9 different airlines that fly to Newark Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between London and Newark have experienced a delay on any given week. The average delay length over the past 12 months has been 213 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening 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. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $492.

Flights connecting via Oslo (OSL) have the shortest average one-way travel time: 11h 10m.

Reykjavik (KEF) has the shortest average layover time for this route: 1h 25m.

As of March 2026, there are 48 flights per day flying from London to Newark Airport. The most common time of day flights depart is 12:00PM, with 56% of flights taking off in the afternoon.

As of March 2026, 339 flights take off from London and land in Newark Airport each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.