Shortest flight route flown between West Yellowstone, Montana, United States (WYS) and Coeur d'Alene, Idaho, United States (COE):
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What airports are furthest away (most antipodal) from Yellowstone Airport and Coeur d'Alene Air Terminal?

Departure Airport:

Get airport maps and more information about Yellowstone Airport   Yellowstone Airport (WYS)
(44°41'17"N by 111°7'3"W)

Arrival Airport:

Get airport maps and more information about Coeur d'Alene Air Terminal   Coeur d'Alene Air Terminal (COE)
(47°46'27"N by 116°49'9"W)

Distance:

346 miles (557 kilometers)
 

About this route:

A direct flight between Yellowstone Airport (WYS), West Yellowstone, Montana, United States and Coeur d'Alene Air Terminal (COE), Coeur d'Alene, Idaho, United States would travel a Great Circle distance of 346 miles (or 557 kilometers). A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances.
 
The Great Circle route of your nonstop flight from West Yellowstone, Montana, United States to Coeur d'Alene, Idaho, United States most likely still appears like a straight line because of the relatively short distance between WYS and COE. The great circle route for longer distances would most likely appear more curved than the map that you see here.