Cheap flights from London to Dallas from €637

In general, February is the cheapest month to fly from London to Dallas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €885. If you are unable to visit Dallas during the month of February, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around €910.

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 €1,043 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas from London for as low as €934 on momondo.

There is only 1 cabin class 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.

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 163 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening 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 10% of their flights experiencing any sort of delay.

27 flights are operational daily from London to Dallas as of August 2026. The most popular departure time for this route is 08:00, with 59% of flights per day taking off in the afternoon.

189 flights are operational weekly from London to Dallas as of August 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.