About Flight Time Calculator
Calculate accurate flight durations and non-stop nautical miles between 20+ major global airport hubs using the Great-Circle Haversine formula. Factors in cruising speed, taxiing, climb and descent phases, and eastbound jetstream tailwinds.
Key Capabilities & Features
- Accurate Great-Circle spherical trigonometry calculation between 20 major international airport hubs
- Accounts for realistic aviation phases: 40-minute airport taxi, ascent climb, and approach descent buffer
- Eastbound vs westbound jetstream high-altitude wind correction factor (±25 km/h)
- Outputs flight duration in hours and minutes, distance in kilometers, statute miles, and nautical miles
How to Use Flight Time Calculator
Select Departure Airport
Pick your origin airport hub (e.g., JFK, LHR, HND, DXB, SIN).
Select Arrival Airport
Choose your destination airport from the global hub registry.
Adjust Aircraft Speed
Optional: Adjust cruising speed (default 850 km/h / 460 knots).
View Estimated Airtime
Review estimated non-stop gate-to-gate flight duration and aviation nautical miles.
Privacy & In-Browser Execution Guarantee
100% client-side calculation. Your data never leaves your browser.
Frequently Asked Questions
Why does flying east take less time than flying west?
Commercial airliners flying eastbound at high altitudes ride high-speed jet streams (prevailing westerly winds), which can provide a 50 to 100 knot tailwind boost, shortening flight times.
What buffer is added for taxi and landing?
This calculator includes a standard 40-minute gate-to-runway taxi, climb-to-cruise, and descent-to-gate approach buffer.