Plotline

Route

Return to start

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Initial course

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Final course

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Route vertex

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Rhumb penalty

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Airlines by leg

Display

Map overlays

Rhumb line Range rings Radius circle Graticule

Airport tiers

Rings from origin

Aircraft range

Aircraft / range

Max range

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Arbitrary radius

Airports inside Coverage Antipode Ring geometry

Ranked from origin

In range

#	Code	Airport	Dist	Crs	Range

Distances are spherical great circle (haversine) on the IUGG mean radius — within ~0.3 % of the WGS84 geodesic, or about 15 km on a transatlantic leg. Courses are true, not magnetic.
Airports from OurAirports (scheduled service only). Boundaries from Natural Earth 1:110m. Aircraft ranges are published maximums at typical payload — real dispatch range is lower.