Nonstop flight route between Patterson, Louisiana, United States and Alma, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from PTN to AMN:
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- About this route
- PTN Airport Information
- AMN Airport Information
- Facts about PTN
- Facts about AMN
- Map of Nearest Airports to PTN
- List of Nearest Airports to PTN
- Map of Furthest Airports from PTN
- List of Furthest Airports from PTN
- 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 Harry P. Williams Memorial Airport (PTN), Patterson, Louisiana, United States and Gratiot Community Airport (AMN), Alma, Michigan, United States would travel a Great Circle distance of 1,010 miles (or 1,625 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 Harry P. Williams Memorial 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: | PTN / KPTN |
Airport Name: | Harry P. Williams Memorial Airport |
Location: | Patterson, Louisiana, United States |
GPS Coordinates: | 29°42'33"N by 91°20'20"W |
Area Served: | Patterson, Louisiana |
Operator/Owner: | State of Louisiana |
Airport Type: | Public |
Elevation: | 9 feet (3 meters) |
# of Runways: | 2 |
View all routes: | Routes from PTN |
More Information: | PTN 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 Harry P. Williams Memorial Airport (PTN):
- Harry P. Williams Memorial Airport (PTN) has 2 runways.
- The closest airport to Harry P. Williams Memorial Airport (PTN) is Acadiana Regional Airport (ARA), which is located 40 miles (64 kilometers) NW of PTN.
- Because of Harry P. Williams Memorial Airport's relatively low elevation of 9 feet, planes can take off or land at Harry P. Williams Memorial 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 furthest airport from Harry P. Williams Memorial Airport (PTN) is Cocos (Keeling) Island Airport (CCK), which is located 11,118 miles (17,892 kilometers) away in Cocos Islands, Australia.
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.
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.
- 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.
- For the 12-month period ending December 31, 2007, the airport had 9,500 general aviation aircraft operations, an average of 26 per day.