Nonstop flight route between Helena, Montana, United States and Detroit, Michigan, United States:

About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Willow Run Airport (YIP) (YIP), Detroit, Michigan, United States would travel a Great Circle distance of 1,428 miles (or 2,298 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 Helena Regional Airport and Willow Run Airport (YIP), the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Helena Regional Airport (HLN):

• Helena Regional Airport (HLN) has 3 runways.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.

Facts about Willow Run Airport (YIP) (YIP):

• Willow Run Airport (YIP) (YIP) has 4 runways.
• The furthest airport from Willow Run Airport (YIP) (YIP) is Margaret River Airport (MGV), which is located 11,276 miles (18,147 kilometers) away in Margaret River, Western Australia, Australia.
• By fall 1944 Willow Run had moved from the B-24L to the B-24M, the last Liberator to be built in significant numbers.
• The closest airport to Willow Run Airport (YIP) (YIP) is Detroit Metropolitan Wayne County Airport (DTW), which is located only 9 miles (15 kilometers) E of YIP.
• The coming of World War II to Europe and the Fall of France in 1940 alarmed many in the United States, and in spite of an official policy of American neutrality, a number of government officials began preparing for the possibility of United States involvement.
• Opened in 1942, "Willow Run" was synonymous with the American industrial effort that contributed so much to Allied victory in World War II.
• Because of Willow Run Airport (YIP)'s relatively low elevation of 716 feet, planes can take off or land at Willow Run Airport (YIP) 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.
• Willow Run Airport has four runways, a continuously staffed FAA control tower, and US Customs operations.
• The first Ford-built Liberators rolled off the Willow Run line in September 1942.
• Once production began, it became difficult to introduce changes dictated by field experience in the various overseas theaters onto the production line in a timely fashion.
• Willow Run's relative isolation encouraged new approaches to passenger transportation to and from airports.