Cheap flights from Newark Airport to London from $297

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Newark Airport, with most prices found around $528. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Newark Airport to London Heathrow Airport during January average around $541.

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $646. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $711.

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 Newark Airport to London Heathrow Airport in the morning for as low as $628. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $700.

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

You are more likely to see cheaper flights to London Heathrow Airport from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $635 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 Newark Airport for as low as $611 on momondo.

SWISS, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from Newark to London Heathrow

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London Heathrow Airport from Newark Airport according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 16 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 19% of flights between Newark and London have experienced a delay on any given week. The average delay length over the past 12 months has been 184 minutes.

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

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Montreal (YUL) offer the lowest average round-trip price of $478.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 9h 24m.

Charlotte (CLT) has the shortest average layover time for this route: 1h 02m.

The number of flights available between Newark Airport and London Heathrow Airport is 47 per day as of May 2026. The most frequent departure time is 7:00PM, with 61% of daily flights leaving in the evening.

As of May 2026, 335 flights take off from Newark Airport and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.