Nonstop flight route between Port Alsworth, Alaska, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Port Alsworth Airport (PTA), Port Alsworth, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,022 miles (or 4,864 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 Port Alsworth Airport 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 Port Alsworth Airport 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 Port Alsworth Airport (PTA):

• The furthest airport from Port Alsworth Airport (PTA) is Port Elizabeth International Airport (PLZ), which is located 10,625 miles (17,100 kilometers) away in Port Elizabeth, South Africa.
• Because of Port Alsworth Airport's relatively low elevation of 280 feet, planes can take off or land at Port Alsworth 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.
• The closest airport to Port Alsworth Airport (PTA) is Nondalton Airport (NNL), which is located 24 miles (38 kilometers) SW of PTA.
• In addition to being known as "Port Alsworth Airport", other names for PTA include "TPO" and "Port Alsworth".
• Port Alsworth Airport (PTA) currently has only 1 runway.

Facts about Henry Post Army Airfield (FSI):

• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.