Nonstop flight route between Fort Sill, Oklahoma, United States and Fort Greely, Delta Junction, Alaska, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Allen Army Airfield (BIG), Fort Greely, Delta Junction, Alaska, United States would travel a Great Circle distance of 2,828 miles (or 4,551 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 large distance between Henry Post Army Airfield and Allen Army Airfield, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Allen Army Airfield. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Henry Post Army Airfield (FSI):

• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• Post Field served as a base for flight training for the Air Service.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.

Facts about Allen Army Airfield (BIG):

• Allen Army Airfield is a public and military use airport serving Fort Greely and located three miles south of the central business district of Delta Junction, a city in the Southeast Fairbanks Census Area of the U.S.
• Two runways are lighted and can accommodate heavy cargo aircraft year-round, including the C-141.
• Allen Army Airfield (BIG) has 3 runways.
• Established in 1942 as Big Delta Army Airfield, it was named for river delta formed by the confluence of the Delta River and the Tanana River.
• The closest airport to Allen Army Airfield (BIG) is Delta Junction Airport (DJN), which is located only 4 miles (6 kilometers) N of BIG.
• The furthest airport from Allen Army Airfield (BIG) is Port Elizabeth International Airport (PLZ), which is located 10,331 miles (16,625 kilometers) away in Port Elizabeth, South Africa.
• In addition to being known as "Allen Army Airfield", another name for BIG is "(former Big Delta Army Airfield)".