Nonstop flight route between Chicago, Illinois, United States and Alma, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from ORD to AMN:
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- About this route
- ORD Airport Information
- AMN Airport Information
- Facts about ORD
- Facts about AMN
- Map of Nearest Airports to ORD
- List of Nearest Airports to ORD
- Map of Furthest Airports from ORD
- List of Furthest Airports from ORD
- 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 Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Gratiot Community Airport (AMN), Alma, Michigan, United States would travel a Great Circle distance of 188 miles (or 303 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 Chicago O'Hare International 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: | ORD / KORD |
Airport Name: | Chicago O'Hare International Airport |
Location: | Chicago, Illinois, United States |
GPS Coordinates: | 41°58'42"N by 87°54'16"W |
Area Served: | Chicago, Illinois, United States |
Operator/Owner: | City of Chicago |
Airport Type: | Public |
Elevation: | 668 feet (204 meters) |
# of Runways: | 8 |
View all routes: | Routes from ORD |
More Information: | ORD 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 Chicago O'Hare International Airport (ORD):
- The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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 original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.
- Douglas Company's contract ended in 1945 and though plans were proposed to build commercial aircraft, the company ultimately chose to concentrate production on the west coast.
- United also runs a post-security shuttle service between Concourse C and Concourses E & F in Terminal 2.
- Commercial passenger flights started in 1955 and by the following year O'Hare was served by American, BOAC, Braniff, Capital, Delta, Eastern, North Central, Pan Am, TWA and United, along with freight airlines Riddle and Slick.
- Chicago O'Hare International Airport (ORD) has 8 runways.
- The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
- United and American both established nationwide hubs at the airport in the 1980s, which continue to operate today.
Facts about Gratiot Community Airport (AMN):
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.
- 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.
- Gratiot Community Airport (AMN) has 2 runways.
- For the 12-month period ending December 31, 2007, the airport had 9,500 general aviation aircraft operations, an average of 26 per day.
- 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.