Cheap flights from Newark Airport to London from $300

The cheapest month to fly to London from Newark Airport is in August. Flight prices, which tend to average around $541, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Newark Airport averaging around $557.

The cheapest day to depart from Newark Airport to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $655. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $726. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Newark Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $646 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $714. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to London from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $645 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Newark Airport for as low as $628 on momondo.

There are 4 cabin classes available to choose from on Newark 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 17% on your flight if you consider stops on a Newark Airport to London flight.

As of June 2026, prices for Newark Airport to London flights are approximately 10% cheaper when compared to flights at the same time last year.

Virgin Atlantic, Delta, and SWISS are the most popular carriers operating from Newark to London

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London from Newark Airport according to our data. United Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to London. Keep in mind that there are 16 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% 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 187 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 17% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 49% of momondo users choosing 1-stop flights on this route connected there.

Flights via Porto (OPO) offer the lowest average round-trip price of $440.

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.

48 flights are operational daily from Newark Airport to London as of June 2026. The most popular departure time for this route is 7:00PM, with 61% of flights per day taking off in the evening.

As of June 2026, 339 flights take off from Newark Airport and land in London each week. The most common flight departure day for this route is Tue, with 14% of weekly flights taking off on this day.