Nonstop flight route between Portsmouth, Ohio, United States and Williston, North Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from PMH to ISN:
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- About this route
- PMH Airport Information
- ISN Airport Information
- Facts about PMH
- Facts about ISN
- 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 ISN
- List of Nearest Airports to ISN
- Map of Furthest Airports from ISN
- List of Furthest Airports from ISN
About this route:
A direct, nonstop flight between Greater Portsmouth Regional Airport (PMH), Portsmouth, Ohio, United States and Sloulin Field International Airport (ISN), Williston, North Dakota, United States would travel a Great Circle distance of 1,220 miles (or 1,963 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 Sloulin Field International 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: | ISN / KISN |
Airport Name: | Sloulin Field International Airport |
Location: | Williston, North Dakota, United States |
GPS Coordinates: | 48°10'41"N by 103°38'31"W |
Area Served: | Williston, North Dakota |
Operator/Owner: | City of Williston |
Airport Type: | Public |
Elevation: | 1982 feet (604 meters) |
# of Runways: | 2 |
View all routes: | Routes from ISN |
More Information: | ISN 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 covers an area of 246 acres at an elevation of 663 feet above mean sea level.
- 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 Sloulin Field International Airport (ISN):
- Sloulin Field International Airport (ISN) has 2 runways.
- ISN is mostly used for general aviation but is served by United Express, with three flights a day with service to Denver, and Delta Connection, with three flights a day with service to Minneapolis-St.
- Customs service is available for aircraft arriving from Canada and other countries.
- The furthest airport from Sloulin Field International Airport (ISN) is Sir Gaëtan Duval Airport (RRG), which is located 10,343 miles (16,646 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Sloulin Field International Airport (ISN) is Sidney-Richland Municipal Airport (SDY), which is located 41 miles (67 kilometers) SW of ISN.