The total flight duration from DFW to LHR is 10 hours.
This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds.
If you're planning a trip, remember to add more time for the plane to taxi between the gate and the airport runway. This measurement is only for the actual flying time. You should also factor in airport wait times and possible equipment or weather delays. If you're trying to figure out what time you'll arrive at the destination, you may want to see if there's a time difference between DFW and LHR.
The calculation of flight time is based on the straight line flight distance from DFW to LHR ("as the crow flies"), which is about 4,751 miles or 7 645 kilometers.
Your trip begins at Dallas/Fort Worth International Airport in Dallas, Texas.
It ends at London Heathrow Airport in London, United Kingdom.
Your flight direction from DFW to LHR is Northeast (42 degrees from North).
The flight time calculator measures the average flight duration between points. It uses the great circle formula to compute the travel mileage.
Travel Math provides an online flight time calculator for all types of travel routes. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a typical flight would take. Find your travel time to estimate the length of a flight between airports, or ask how long it takes to fly from one city to another.
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