Nonstop flight route between Fort Sill, Oklahoma, United States and Coimbra, Portugal:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Coimbra Airport (CBP), Coimbra, Portugal would travel a Great Circle distance of 4,729 miles (or 7,611 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 Coimbra Airport, 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 Coimbra Airport. 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.
• 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• Henry Post Army Airfield (FSI) currently has only 1 runway.

Facts about Coimbra Airport (CBP):

• Because of Coimbra Airport's relatively low elevation of 571 feet, planes can take off or land at Coimbra 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.
• Coimbra Airport (CBP) currently has only 1 runway.
• The closest airport to Coimbra Airport (CBP) is Covilhã Airport (COV), which is located 53 miles (85 kilometers) E of CBP.
• In addition to being known as "Coimbra Airport", another name for CBP is "Aeródromo Municipal Bissaya Barreto".
• The furthest airport from Coimbra Airport (CBP) is Takaka Aerodrome (KTF), which is nearly antipodal to Coimbra Airport (meaning Coimbra Airport is almost on the exact opposite side of the Earth from Takaka Aerodrome), and is located 12,352 miles (19,879 kilometers) away in Takaka, New Zealand.