Flight Time Calculator
Estimate flight time from distance and speed.
Jets ~500 mph
Default 30 min
Results update as you type.
How it works
Wondering how long a flight will take, this calculator estimates it from the distance and the aircraft's speed. You enter the flight distance, the average ground speed, and an allowance for taxiing and climbing, and it returns the total flight time in hours and minutes. The core calculation divides distance by speed for the airborne time, then adds a buffer for the time spent taxiing, taking off, and descending, which the pure cruise speed does not capture. Commercial jets typically cruise around 500 miles per hour, though the effective ground speed varies with winds — a strong tailwind can shorten a flight noticeably, while a headwind lengthens it, which is why eastbound flights are often faster than westbound ones on the same route. Distance here should be the great-circle (shortest path) distance between airports, which is what flights approximately follow, not the straight-line map distance in a flat projection. This estimate is handy for planning connections, arrival times, and trips, but actual flight times depend on the specific aircraft, route, winds, air traffic, and routing, so airlines' scheduled times build in extra buffer. For a quick estimate, dividing the distance by 500 and adding about half an hour works well for jet flights. Enter the distance, speed, and taxi allowance to estimate the flight time.
Flight time = (distance ÷ average speed) + taxi allowance
The airborne time is the flight distance divided by the aircraft's average ground speed. Adding an allowance for taxiing, takeoff, and climb gives a realistic gate-to-gate estimate. Commercial jets cruise around 500 mph, so a rough estimate divides distance by that speed.
Source:Speed-distance-time
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter flight distance.
- 2
Adjust the options
Adjust average ground speed and taxi & climb allowance if they apply — sensible defaults are already set.
- 3
Read your result
Total flight time updates instantly as you type — no button to press.
Frequently asked questions
How do you estimate flight time?
Divide the flight distance by the aircraft's average ground speed to get airborne time, then add an allowance for taxiing, takeoff, and climb. For a 2500-mile flight at 500 mph plus 30 minutes, that is about 5.5 hours. Actual times vary with winds, routing, and air traffic, so airlines schedule extra buffer.
How fast do commercial jets fly?
Most commercial jets cruise around 500 to 575 miles per hour through the air. However, the ground speed that determines flight time depends on winds: a tailwind adds to it and a headwind subtracts. Using about 500 mph as an average ground speed gives a reasonable estimate for typical routes when you don't know the winds.
Why are eastbound flights often faster?
High-altitude jet streams generally blow from west to east. Flying eastbound, aircraft ride these tailwinds and gain ground speed, shortening the trip, while westbound flights fight the same winds as headwinds and take longer. This is why a round trip can have noticeably different flight times in each direction even over the identical route.
What distance should I use?
Use the great-circle distance, the shortest path over the curved surface of the Earth between the two airports, since flights approximately follow it. This differs from the straight-line distance on a flat map, especially for long routes. Many flight-distance tools give the great-circle distance; enter that value for the most accurate flight-time estimate.
Why is my airline's scheduled time longer?
Airlines pad scheduled times with buffer for taxiing at busy airports, air traffic delays, routing that isn't a perfect straight line, and average wind conditions. This padding improves on-time performance statistics. Your actual airborne time may be shorter than the schedule, but the calculator's estimate plus taxi allowance approximates realistic gate-to-gate duration for planning.