Nonstop flight route between College Park, Maryland, United States and Alma, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from CGS to AMN:
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- About this route
- CGS Airport Information
- AMN Airport Information
- Facts about CGS
- Facts about AMN
- Map of Nearest Airports to CGS
- List of Nearest Airports to CGS
- Map of Furthest Airports from CGS
- List of Furthest Airports from CGS
- Map of Nearest Airports to AMN
- List of Nearest Airports to AMN
- Map of Furthest Airports from AMN
- List of Furthest Airports from AMN
About this route:
A direct, nonstop flight between College Park Airport (CGS), College Park, Maryland, United States and Gratiot Community Airport (AMN), Alma, Michigan, United States would travel a Great Circle distance of 503 miles (or 809 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 College Park Airport and Gratiot Community Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | CGS / KCGS |
Airport Name: | College Park Airport |
Location: | College Park, Maryland, United States |
GPS Coordinates: | 38°58'50"N by 76°55'20"W |
Operator/Owner: | Maryland-National Capital Park & Planning Commission |
Airport Type: | Public |
Elevation: | 48 feet (15 meters) |
# of Runways: | 1 |
View all routes: | Routes from CGS |
More Information: | CGS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | AMN / KAMN |
Airport Name: | Gratiot Community Airport |
Location: | Alma, Michigan, United States |
GPS Coordinates: | 43°19'19"N by 84°41'17"W |
Area Served: | Alma, Michigan |
Operator/Owner: | City of Alma & County of Gratiot |
Airport Type: | Public |
Elevation: | 754 feet (230 meters) |
# of Runways: | 2 |
View all routes: | Routes from AMN |
More Information: | AMN Maps & Info |
Facts about College Park Airport (CGS):
- 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.
- College Park Airport is home to many "firsts" in aviation, and is particularly significant for the well-known aviators and aviation inventors who played a part in this field's long history.
- 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 museum offers changing exhibits, special events, lectures, workshops and programs for the public, schools and groups.
- From 1927 until 1933, the Bureau of Standards developed and tested the first radio navigational aids for use in "blind" or bad weather flying.
- 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 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.
- 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.
- College Park Airport (CGS) currently has only 1 runway.
Facts about Gratiot Community Airport (AMN):
- Because of Gratiot Community Airport's relatively low elevation of 754 feet, planes can take off or land at Gratiot Community 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.
- Gratiot Community Airport covers an area of 631 acres at an elevation of 754 feet above mean sea level.
- Gratiot Community Airport (AMN) has 2 runways.
- The furthest airport from Gratiot Community Airport (AMN) is Margaret River Airport (MGV), which is located 11,192 miles (18,011 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.