Last updated: March 2026
What Is the Flight Duration Calculator?
Wondering how long your flight will take? Enter your departure and arrival airports to instantly see the estimated flight duration, distance in miles and kilometers, time zone difference, and your arrival time in local time.
The calculator covers 500+ major airports worldwide and supports multi-leg trips with layover calculations. Distance is computed using the Haversine formula for Great Circle accuracy.
Frequently Asked Questions
How accurate are the flight duration estimates?
Estimates use the Great Circle (Haversine) distance and an average cruising speed of 550 mph, plus 30 minutes for taxi, takeoff, and landing. They're typically within 10-15% of actual flight times.
Does the arrival time account for time zones?
Yes. The arrival time shown is in the destination's local time, fully accounting for time zone differences including Daylight Saving Time.
Can I plan multi-stop trips?
Yes. Add up to 4 flight legs with layover durations between each. The calculator shows per-leg flight times plus total travel time.
What is the jet lag indicator?
The jet lag indicator is based on the time zone difference. 1-3 hours is mild (green), 4-6 hours is moderate (yellow), and 7+ hours is severe (red).