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

About this route:

A direct, nonstop flight between Allen Army Airfield (BIG), Fort Greely, Delta Junction, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, 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 Allen Army Airfield and Henry Post 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 Allen Army Airfield and Henry Post 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 Allen Army Airfield (BIG):

• In addition to being known as "Allen Army Airfield", another name for BIG is "(former Big Delta Army Airfield)".
• Two runways are lighted and can accommodate heavy cargo aircraft year-round, including the C-141.
• Allen Army Airfield (BIG) has 3 runways.
• 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.

Facts about Henry Post Army Airfield (FSI):

• 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.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• Post Field served as a base for flight training for the Air Service.
• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.