Nonstop flight route between Port Huron, Michigan, United States and College Park, Maryland, United States:

About this route:

A direct, nonstop flight between St. Clair County International Airport (PHN), Port Huron, Michigan, United States and College Park Airport (CGS), College Park, Maryland, United States would travel a Great Circle distance of 399 miles (or 642 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 St. Clair County International Airport and College Park Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about St. Clair County International Airport (PHN):

• St. Clair County International Airport (PHN) has 2 runways.
• The furthest airport from St. Clair County International Airport (PHN) is Margaret River Airport (MGV), which is located 11,302 miles (18,189 kilometers) away in Margaret River, Western Australia, Australia.
• Because of St. Clair County International Airport's relatively low elevation of 650 feet, planes can take off or land at St. Clair County International 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 St. Clair County International Airport (PHN) is Sarnia (Chris Hadfield) Airport (YZR), which is located only 13 miles (20 kilometers) ENE of PHN.

Facts about College Park Airport (CGS):

• In 1918, after a three-month trial with the War Department beginning May 15, the Post Office Department inaugurated the first Postal Airmail Service from College Park, serving Philadelphia and New York.
• Because of College Park Airport's relatively low elevation of 48 feet, planes can take off or land at College Park 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.
• In 1937, the Engineering & Research Corporation, based in nearby Riverdale, Maryland, used the airport to test fly the early model of the Ercoupe, an airplane designed to be spin-proof.
• College Park Airport (CGS) currently has only 1 runway.
• Since the 9/11 attacks, and owing to the airport's proximity to the national capital, the operations of the airport have been severely restricted by the Transportation Security Administration in the interest of national security, but civilian pilots are still free to use the airport after going through a one-time background check procedure.
• The furthest airport from College Park Airport (CGS) is Margaret River Airport (MGV), which is located 11,684 miles (18,803 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to College Park Airport (CGS) is Bolling Air Force Base (BOF), which is located only 11 miles (17 kilometers) SSW of CGS.
• The Christmas Aeroplane Company of Washington D.C.