Live data·~100ms avg response·Free · No signup·Updated Jun 2026
Flight Distance Calculator
Great-circle distance between any two airports. Estimates flight time, fuel, and CO₂.
— km
Select two airports to calculate
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How to use the flight distance calculator
Enter two airports or cities to get the great-circle distance and an estimated flight time. Handy for planning routes, comparing itineraries and estimating jet lag.
Good to know
- Great-circle distance is the shortest path over the globe — actual routes vary slightly.
- Flight time estimates assume typical cruising speeds; headwinds and routing add time.
- Long-haul (8+ hours) usually means crossing several time zones — plan for jet lag.
Flight Distance Calculator FAQ
How is flight distance calculated?
Using the great-circle distance — the shortest path between two points over the earth's surface.
How accurate are flight time estimates?
They're close, but real flight times vary with routing, winds and air-traffic conditions.
