Nonstop flight route between Fort Sill, Oklahoma, United States and Essington, Pennsylvania, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Philadelphia Seaplane BaseChandler Field (PSQ), Essington, Pennsylvania, United States would travel a Great Circle distance of 1,316 miles (or 2,118 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 Henry Post Army Airfield and Philadelphia Seaplane BaseChandler Field, the route shown on this map most likely still appears to be a straight line.

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.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Post Field served as a base for flight training for the Air Service.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• 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.

Facts about Philadelphia Seaplane BaseChandler Field (PSQ):

• The closest airport to Philadelphia Seaplane BaseChandler Field (PSQ) is Philadelphia International Airport (PHL), which is located only 3 miles (5 kilometers) ENE of PSQ.
• Because of Philadelphia Seaplane BaseChandler Field's relatively low elevation of 0 feet, planes can take off or land at Philadelphia Seaplane BaseChandler Field 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.
• In addition to being known as "Philadelphia Seaplane BaseChandler Field", another name for PSQ is "9N2".
• Philadelphia Seaplane BaseChandler Field (PSQ) currently has only 1 runway.
• The furthest airport from Philadelphia Seaplane BaseChandler Field (PSQ) is Margaret River Airport (MGV), which is located 11,732 miles (18,880 kilometers) away in Margaret River, Western Australia, Australia.