Nonstop flight route between Portsmouth, Ohio, United States and Alma, Michigan, United States:
Departure Airport:
(38°50'26"N by 82°50'49"W)
Arrival Airport:
(43°19'19"N by 84°41'17"W)
Distance from PMH to AMN:
324.13 miles (521.64 km)
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Jump to:
- About this route
- PMH Airport Information
- AMN Airport Information
- Facts about PMH
- Facts about AMN
- Map of Nearest Airports to PMH
- List of Nearest Airports to PMH
- Map of Furthest Airports from PMH
- List of Furthest Airports from PMH
- 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 Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Gratiot Community Airport (AMN), Alma, Michigan, United States would travel a Great Circle distance of 324 miles (or 522 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 Greater Portsmouth Regional 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: | PMH / KPMH |
| Airport Name: | Greater Portsmouth Regional Airport |
| Location: | Portsmouth, Ohio, United States |
| GPS Coordinates: | 38°50'26"N by 82°50'49"W |
| Area Served: | Portsmouth, Ohio |
| Operator/Owner: | Scioto County Airport Authority |
| Airport Type: | Public |
| Elevation: | 663 feet (202 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PMH |
| More Information: | PMH 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 Greater Portsmouth Regional Airport (PMH):
- Because of Greater Portsmouth Regional Airport's relatively low elevation of 663 feet, planes can take off or land at Greater Portsmouth Regional 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 Greater Portsmouth Regional Airport (PMH) is Margaret River Airport (MGV), which is located 11,385 miles (18,322 kilometers) away in Margaret River, Western Australia, Australia.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- The closest airport to Greater Portsmouth Regional Airport (PMH) is Lawrence County Airpark (HTW), which is located 35 miles (56 kilometers) SSE of PMH.
- The airport was constructed in the 1957 to replace another airport located in West Portsmouth, Ohio which was situated near the Ohio River.
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.
- 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 is a public use airport located three nautical miles southwest of the central business district of Alma, a city in Gratiot County, Michigan, United States.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.79 miles (55.99 km) SSE | Lawrence County Airpark (HTW) | Chesapeake, Ohio / Huntington, West Virginia, United States |     |
| 2 | 36.25 miles (58.33 km) SSE | Tri-State Airport (HTS) | Huntington, West Virginia, United States | |
| 3 | 41.94 miles (67.50 km) NE | Ohio University Airport Gordon K. Bush Airport (ATO) | Athens/Albany, Ohio, United States | |
| 4 | 64.90 miles (104.45 km) NW | Wilmington Air Park (ILN) | Wilmington, Ohio, United States | |
| 5 | 67.39 miles (108.45 km) N | Rickenbacker International Airport (LCK) | Columbus, Ohio, United States | |
| 6 | 74.94 miles (120.61 km) ESE | Yeager Airport (CRW) | Charleston, West Virginia, United States | |
| 7 | 80.01 miles (128.77 km) N | Port Columbus International Airport (CMH) | Columbus, Ohio, United States | |
| 8 | 83.15 miles (133.81 km) ENE | Mid-Ohio Valley Regional Airport (PKB) | Parkersburg, West Virginia, United States | |
| 9 | 86.34 miles (138.95 km) WNW | Cincinnati Municipal Airport (LUK) | Cincinnati, Ohio, United States | |
| 10 | 86.46 miles (139.15 km) N | Ohio State University Airport (OSU) | Columbus, Ohio, United States | |
| 11 | 87.10 miles (140.18 km) NW | Springfield–Beckley Municipal Airport (SGH) | Springfield, Ohio, United States | |
| 12 | 90.07 miles (144.96 km) NW | Dayton–Wright Brothers Airport (MGY) | Dayton, Ohio, United States | |
| 13 | 91.75 miles (147.65 km) NNE | Zanesville Municipal Airport (ZZV) | Zanesville, Ohio, United States | |
| 14 | 93.47 miles (150.42 km) NW | Wright-Patterson Air Force Base (FFO) | Dayton, Ohio, United States | |
| 15 | 95.72 miles (154.05 km) WNW | Middletown Regional Airport (MWO) | Middletown, Ohio, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,384.56 miles (18,321.63 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,361.95 miles (18,285.24 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,338.90 miles (18,248.15 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,338.49 miles (18,247.48 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,301.73 miles (18,188.33 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,287.40 miles (18,165.26 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,277.69 miles (18,149.64 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,266.80 miles (18,132.11 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 11,262.96 miles (18,125.94 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 11,243.76 miles (18,095.02 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,216.76 miles (18,051.58 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,187.46 miles (18,004.43 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,171.36 miles (17,978.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,164.59 miles (17,967.62 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,129.72 miles (17,911.50 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 20.84 miles (33.54 km) N | Mount Pleasant Municipal Airport (MOP) | Mount Pleasant, Michigan, United States | |
| 2 | 33.82 miles (54.42 km) ENE | MBS International Airport (MBS) | Midland/Bay City/Saginaw, Michigan, United States | |
| 3 | 37.91 miles (61.01 km) S | Capital Region International Airport (LAN) | Lansing, Michigan, United States | |
| 4 | 46.05 miles (74.10 km) NNE | Gladwin Zettel Memorial Airport (GDW) | Gladwin, Michigan, United States | |
| 5 | 49.36 miles (79.44 km) NW | Roben-Hood Airport (WBR) | Big Rapids, Michigan, United States | |
| 6 | 51.99 miles (83.67 km) SW | Gerald R. Ford International Airport (GRR) | Grand Rapids, Michigan, United States | |
| 7 | 53.61 miles (86.28 km) ESE | Bishop International Airport (FNT) | Flint, Michigan, United States | |
| 8 | 57.55 miles (92.62 km) NW | Nartron Field (RCT) | Reed City, Michigan, United States | |
| 9 | 71.69 miles (115.37 km) N | Roscommon County - Blodgett Memorial Airport (HTL) | Houghton Lake, Michigan, United States | |
| 10 | 74.25 miles (119.50 km) S | Jackson County Airport (JXN) | Jackson, Michigan, United States | |
| 11 | 75.27 miles (121.13 km) NNW | Wexford County Airport (CAD) | Cadillac, Michigan, United States | |
| 12 | 75.75 miles (121.90 km) SSW | W. K. Kellogg Airport (BTL) | Battle Creek, Michigan, United States | |
| 13 | 78.51 miles (126.34 km) SE | Oakland County International Airport (PTK) | Waterford, Michigan, United States | |
| 14 | 78.61 miles (126.51 km) W | Muskegon County Airport (MKG) | Muskegon, Michigan, United States | |
| 15 | 82.82 miles (133.28 km) WSW | Park Township Airport (HLM) | Holland, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,191.77 miles (18,011.36 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,167.88 miles (17,972.92 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,157.54 miles (17,956.28 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,142.21 miles (17,931.60 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,105.01 miles (17,871.73 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,087.96 miles (17,844.30 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,076.96 miles (17,826.59 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,066.06 miles (17,809.05 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,064.19 miles (17,806.04 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,028.34 miles (17,748.35 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,966.86 miles (17,649.41 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,933.36 miles (17,595.50 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,926.60 miles (17,584.61 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,917.46 miles (17,569.90 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,865.24 miles (17,485.87 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |