Cheap flights from Dallas/Fort Worth Airport to London from $329

The month of September is, on average, the cheapest month to fly to London Heathrow Airport from Dallas/Fort Worth Airport, with most prices found around $757. If you’re not able to fly to London Heathrow Airport in September, then October is your next best option. Flight prices from Dallas/Fort Worth Airport to London Heathrow Airport during October average around $784.

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 $1,014. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,230.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Dallas/Fort Worth Airport to London Heathrow Airport in the afternoon for as low as $1,083. 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 $1,149.

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

You are more likely to see cheaper flights to London Heathrow Airport from Dallas/Fort Worth Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $956 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 Dallas/Fort Worth Airport for as low as $794 on momondo.

There are 4 cabin classes available to choose from on Dallas/Fort Worth to London Heathrow 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 29% on your flight if you consider stops on a Dallas/Fort Worth Airport to London Heathrow Airport flight.

As of March 2026, prices for Dallas/Fort Worth Airport to London Heathrow Airport flights are approximately 12% more expensive when compared to flights at the same time last year.

Turkish Airlines and British Airways are the most popular carriers operating from Dallas/Fort Worth to London Heathrow

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Dallas/Fort Worth Airport according to our data. British Airways is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 13 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 25% 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 164 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.

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of 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: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Boston (BOS) offer the lowest average round-trip price of $882.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 12h 32m.

Dublin (DUB) has the shortest average layover time for this route: 2h 20m.

As of March 2026, 27 flights take off from Dallas/Fort Worth Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 9:00PM, with 81% of daily flights taking off in the evening.

As of March 2026, there are 190 flights per week flying from Dallas/Fort Worth Airport to London Heathrow Airport. The most common day of the week flights depart is Fri, with 15% of flights taking off on this day.