Nonstop flight route between West Yellowstone, Montana, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Yellowstone Airport (WYS), West Yellowstone, Montana, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,153 miles (or 1,856 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. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Yellowstone Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Yellowstone Airport (WYS):

• Two airlines actually operated mainline jet aircraft into the airport in the past, although all service was seasonal in nature and was not operated during the winter months.
• Yellowstone Airport (WYS) currently has only 1 runway.
• Delta/Skywest Airlines EMB120
• The closest airport to Yellowstone Airport (WYS) is Dubois Municipal Airport (DBS), which is located 65 miles (105 kilometers) WSW of WYS.
• Because of Yellowstone Airport's high elevation of 6,649 feet, planes must typically fly at a faster airspeed in order to takeoff or land at WYS. Combined with a high temperature, this could make WYS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Yellowstone Airport (WYS) is Sir Gaëtan Duval Airport (RRG), which is located 10,685 miles (17,196 kilometers) away in Rodrigues Island, Mauritius.

Facts about St. Louis Regional Airport (ALN):

• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• West Star Aviation is the largest fixed base operations company at the airport.
• The 2,250 acres airfield sits at 544 ft MSL.
• St. Louis Regional Airport (ALN) has 2 runways.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.