Plan a leg

Two idents. The distance, the track to steer as you leave, the cruise levels the semicircular rule offers, and roughly how long it takes in the sort of aircraft people fly here. No winds, because there is no wind model behind this and pretending otherwise would be worse than saying so. If you would rather be told where to go, say so below and it will pick something.

Find me a route

Answer as much or as little as you like. It will not offer you a leg the aeroplane cannot make, a runway it cannot get into, or a destination the airline has never flown to.

KBTMKSMN

Bert Mooney Airport to Lemhi County Airport

Great circle distance
77nm
142 km
Track on departure
230°
heading south west
Track on arrival
229°
the same heading the whole way
Cruise levels
FL300
Westbound, so even levels
The solid line is the route. The faint one is the straight line on this projection, which is longer to fly and is what people expect the route to be.

Roughly how long

Still air, plus half an hour for the climb, the descent and the taxi at both ends. A real day is longer or shorter by whatever the wind is doing.

  • Light single120 kt1h 08m
  • Turboprop280 kt46 min
  • Narrow body450 kt40 min
  • Wide body490 kt39 min

Both ends

  • Bert Mooney AirportKBTM · BTM · United StatesLongest runway 15/33, 9,000 ft · elevation 5,550 ft
  • Lemhi County AirportKSMN · SMN · United StatesLongest runway 17/35, 5,510 ft · elevation 4,043 ft

Halfway is 45.5°N 113.2°W, which on a long leg is further north than the map makes it look.

Plan the leg backEverything about KBTM