Cheap flights from Dallas/Fort Worth Airport to London from £286

The cheapest month to fly to London from Dallas/Fort Worth Airport is in August. Flight prices, which tend to average around £97, 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 Dallas/Fort Worth Airport averaging around £140.

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £611. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Dallas/Fort Worth Airport to London for around £831.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £667. Flights in the afternoon are often more expensive, with an average ticket price of £688.

Fly from Dallas/Fort Worth to London Heathrow for the best Dallas/Fort Worth - London flight prices

You are more likely to see cheaper flights to London from Dallas/Fort Worth Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £723 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 Dallas/Fort Worth Airport for as low as £633 on momondo.

You could potentially save up to 19% on your flight if you consider stops on a Dallas/Fort Worth Airport to London flight.

As of May 2026, prices for Dallas/Fort Worth Airport to London flights are approximately 7% cheaper when compared to flights at the same time last year.

Delta, Virgin Atlantic, and British Airways are the most popular carriers operating from Dallas/Fort Worth to London

British Airways, Iberia and American Airlines are the top three most popular airlines that fly to London from Dallas/Fort Worth Airport according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when travelling to London. Keep in mind that there are 5 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Dallas and London have experienced a delay on any given week. The average delay length over the past 12 months has been 168 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.

Monday 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, American Airlines have had the fewest delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

Istanbul (IST) was the most common stop: 46% of momondo users choosing one-stop flights on this route connected there.

Flights via Houston (IAH) offer the lowest average return price of £356.

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 11h 14m.

Houston (IAH) has the shortest average stopover time for this route: 1h 27m.

28 flights are operational daily from Dallas/Fort Worth Airport to London as of May 2026. The most popular departure time for this route is 22:00, with 61% of flights per day taking off in the evening.

196 flights are operational weekly from Dallas/Fort Worth Airport to London as of May 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.