What's inside
The real route
The great-circle arc, which is how an aircraft actually flies — not a straight line on a flat map.
The airspaces
How many it crosses and which ones. No other site shows this, because it takes the 1,102 control polygons to say it.
How much is over water
The share of the flight and the longest unbroken stretch of sea, with no airport near.
How to share it
The file is a vertical 1080×1920 MP4. It uploads as-is to Instagram, TikTok, Facebook, X or a WhatsApp status. No account, no email, and no watermark on top.