Dash for legs, / to branch — LAX-HKG/SYD. Ranges take LAX+1500km. A bare code — LAX — just marks the airport. Paste whole lists into the boxes below the map.
Routes and airports
Draw airports with or without routes. One per line, or comma-separated.
Range rings
Draw range circles. One per line, or comma-separated.
Markers
Route path
Range rings
Labels
Applies to any label currently turned on above.
Colors
Borders
State/province borders cover US, Canada & Australia only, for now.
Routes
Distances stay true great-circle regardless of the drawing style — these are designed for the flat map and curve onto the globe view.