Cheap flights from London to Dallas from $489

If you are unable to visit Dallas during the month of September, then departing from London during the month February is also very affordable. Most momondo users find prices during this month for around $963.

On average, the least expensive day to fly to Dallas from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,027. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,135.

Flying to Dallas from London at noon is the least expensive time of day to depart. momondo users have found prices as low as $988 when looking at flights departing at noon. In the afternoon is when there is more demand to fly to Dallas, so prices are often more expensive at around $1,141 per ticket.

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

You are more likely to see cheaper flights to Dallas from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas for around $1,087 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas from London for as low as $950 on momondo.

There are 4 cabin classes available to choose from on London to Dallas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet, British Airways, and KLM are the most popular carriers operating from London to Dallas

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to Dallas from London according to our data. British Airways is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Dallas. Keep in mind that there are 6 different airlines that fly to Dallas 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 151 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Monday 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, American Airlines have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

As of March 2026, 27 flights take off from London and land in Dallas each day. The most common flight departure time for this route is 8:00AM, with 59% of daily flights taking off at noon.

As of March 2026, there are 195 flights per week flying from London to Dallas. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.