Cheap flights from London Heathrow Airport to Dallas from £347

If you don’t want to visit Dallas/Fort Worth Airport in November, then you should wait until September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £705.

On average, the least expensive day to fly to Dallas/Fort Worth Airport from London Heathrow Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £747. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Dallas/Fort Worth Airport on Sunday is £815.

Our most recent data shows that the best time of day to fly to Dallas/Fort Worth Airport is at midday. Flights from London Heathrow Airport to Dallas/Fort Worth Airport during this time can be as low as £743. In contrast, the most expensive time of day to depart to Dallas/Fort Worth Airport is in the afternoon when prices are around £813.

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

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around £809 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from London Heathrow Airport for as low as £708 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Dallas/Fort Worth 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 18% on your flight if you consider stops on a London Heathrow Airport to Dallas/Fort Worth Airport flight.

As of March 2026, prices for London Heathrow Airport to Dallas/Fort Worth Airport flights are approximately 22% more expensive when compared to flights at the same time last year.

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

British Airways, Finnair and Iberia are the top three most popular airlines that fly to Dallas/Fort Worth Airport from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 70% of people opting to fly with this airline when travelling to Dallas/Fort Worth Airport. Keep in mind that there are 16 different airlines that fly to Dallas/Fort Worth 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 Dallas have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Friday 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 11% of their flights experiencing any sort of delay.

Boston (BOS) was the most common stop: 38% of momondo users choosing one-stop flights on this route connected there.

Flights via Istanbul (IST) offer the lowest average return price of £738.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 13h 37m.

Atlanta (ATL) has the shortest average stopover time for this route: 1h 35m.

As of March 2026, 26 flights take off from London Heathrow Airport and land in Dallas/Fort Worth Airport each day. The most common flight departure time for this route is 08:00, with 57% of daily flights taking off at midday.

As of March 2026, 187 flights take off from London Heathrow Airport and land in Dallas/Fort Worth Airport each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.