Flight distance calculator
Any two airports in the database. Nothing is sent to a server.
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Start typing a city or airport code
Distance—kilometres
Miles—statute miles
Nautical—nautical miles
Bearing—initial heading
How it works
The calculator loads the airport coordinate list once, then computes the haversine great-circle distance between your two choices and applies the flight-time model described on the method page: 0.42 hours of ground and climb allowance plus distance divided by 805 km/h.
Every calculation happens in your browser. Nothing you type is sent anywhere, and there is no request to any server after the page loads.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
