Higher or Lower
Two airports, one number · how long can you keep it going?
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Four numbers every airport has. Field elevation is the height of the airfield above sea level; high airports need longer take-off runs because the air is thinner. The longest runway counts land runways only. Latitude asks which airport is further north. Great-circle distance is the shortest path over the Earth's surface, as the crow flies, whether or not anyone flies that route. Want the background? Start with Aviation 101 or test your codes in Airport Codes.
A new daily run starts at midnight on your device; ties count as right. Your scores are saved in this browser. Airport data from OurAirports (public domain); values come from that dataset and may differ slightly from official publications.