Nonstop flight route between Portsmouth, Ohio, United States and Baltimore, Maryland, United States:
Departure Airport:
(38°50'26"N by 82°50'49"W)
Arrival Airport:
(39°19'32"N by 76°24'50"W)
Distance from PMH to MTN:
346.58 miles (557.77 km)
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Jump to:
- About this route
- PMH Airport Information
- MTN Airport Information
- Facts about PMH
- Facts about MTN
- 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 MTN
- List of Nearest Airports to MTN
- Map of Furthest Airports from MTN
- List of Furthest Airports from MTN
About this route:
A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Martin State Airport (MTN), Baltimore, Maryland, United States would travel a Great Circle distance of 347 miles (or 558 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 Martin State 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: | MTN / KMTN |
| Airport Name: | Martin State Airport |
| Location: | Baltimore, Maryland, United States |
| GPS Coordinates: | 39°19'32"N by 76°24'50"W |
| Area Served: | Baltimore, Maryland |
| Operator/Owner: | Maryland Aviation Administration |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from MTN |
| More Information: | MTN 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.
- Greater Portsmouth Regional Airport (PMH) currently has only 1 runway.
- Greater Portsmouth Regional Airport is a public use airport located 10 nautical miles northeast of the central business district of Portsmouth, a city in Scioto County, Ohio, United States.
- 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 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.
Facts about Martin State Airport (MTN):
- Because of Martin State Airport's relatively low elevation of 21 feet, planes can take off or land at Martin State 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.
- Martin State Airport (MTN) currently has only 1 runway.
- The closest airport to Martin State Airport (MTN) is Phillips Army Airfield (APG), which is located only 16 miles (26 kilometers) NE of MTN.
- The furthest airport from Martin State Airport (MTN) is Margaret River Airport (MGV), which is located 11,698 miles (18,827 kilometers) away in Margaret River, Western Australia, Australia.
- The Maryland Air National Guard's 175th Wing is a tenant activity at MTN with locally based A-10C aircraft.
| 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 | 16.29 miles (26.22 km) NE | Phillips Army Airfield (APG) | Aberdeen Proving Ground, Maryland, United States | |
| 2 | 17.12 miles (27.55 km) SW | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| 3 | 24.86 miles (40.00 km) SW | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 4 | 27.71 miles (44.60 km) SSW | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 5 | 36.20 miles (58.25 km) SW | College Park Airport (CGS) | College Park, Maryland, United States | |
| 6 | 40.50 miles (65.18 km) SSE | Easton Airport (ESN) | Easton, Maryland, United States | |
| 7 | 41.68 miles (67.08 km) WSW | Montgomery County Airpark (GAI) | Gaithersburg, Maryland, United States | |
| 8 | 43.08 miles (69.32 km) SW | Andrews Field (ADW) | Camp Springs, Maryland, United States | |
| 9 | 46.43 miles (74.72 km) SW | Bolling Air Force Base (BOF) | Washington, D.C., United States | |
| 10 | 46.79 miles (75.30 km) SW | Ronald Reagan Washington National Airport (DCA) | Arlington County, Virginia (near Washington, D.C.), United States | |
| 11 | 47.61 miles (76.62 km) NNW | York Airport (THV) | York, Pennsylvania, United States | |
| 12 | 49.47 miles (79.61 km) ENE | Wilmington/Philadelphia Regional Airport (ILG) | Wilmington, Delaware, United States | |
| 13 | 51.70 miles (83.20 km) W | Frederick Municipal Airport (FDK) | Frederick, Maryland, United States | |
| 14 | 52.60 miles (84.65 km) ESE | Dover Air Force Base (DOV) | Dover, Delaware, United States | |
| 15 | 53.74 miles (86.49 km) NNE | Chester County G. O. Carlson Airport (CTH) | Coatesville, Pennsylvania, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,698.36 miles (18,826.64 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,674.70 miles (18,788.56 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,660.15 miles (18,765.15 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,649.46 miles (18,747.95 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,598.07 miles (18,665.23 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,597.85 miles (18,664.88 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,586.53 miles (18,646.67 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,575.73 miles (18,629.29 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,565.53 miles (18,612.87 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,537.22 miles (18,567.30 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,471.70 miles (18,461.87 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,441.91 miles (18,413.92 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,426.39 miles (18,388.95 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,423.61 miles (18,384.47 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,354.00 miles (18,272.45 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |