Nonstop flight route between Lewistown, Montana, United States and Portsmouth, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from LWT to PSM:
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- About this route
- LWT Airport Information
- PSM Airport Information
- Facts about LWT
- Facts about PSM
- Map of Nearest Airports to LWT
- List of Nearest Airports to LWT
- Map of Furthest Airports from LWT
- List of Furthest Airports from LWT
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
About this route:
A direct, nonstop flight between Lewistown Municipal Airport (LWT), Lewistown, Montana, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 1,886 miles (or 3,035 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 Lewistown Municipal Airport and Portsmouth International Airport at Pease, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | LWT / KLWT |
Airport Names: |
|
Location: | Lewistown, Montana, United States |
GPS Coordinates: | 47°2'57"N by 109°28'0"W |
Area Served: | Lewistown, Montana |
Operator/Owner: | City of Lewistown & Fergus County |
Airport Type: | Public |
Elevation: | 4170 feet (1,271 meters) |
# of Runways: | 3 |
View all routes: | Routes from LWT |
More Information: | LWT Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Facts about Lewistown Municipal Airport (LWT):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Lewistown Municipal Airport (LWT) has 3 runways.
- The furthest airport from Lewistown Municipal Airport (LWT) is Sir Gaëtan Duval Airport (RRG), which is located 10,508 miles (16,911 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Lewistown Municipal Airport (LWT) is Roundup Airport (RPX), which is located 59 miles (95 kilometers) SE of LWT.
- The airfield was in operation during a 12-month period between 1942 and 1943 and thereafter deactivated.
- In addition to being known as "Lewistown Municipal Airport", another name for LWT is "Lewistown Army Airfield".
- Because of Lewistown Municipal Airport's high elevation of 4,170 feet, planes must typically fly at a faster airspeed in order to takeoff or land at LWT. Combined with a high temperature, this could make LWT a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about Portsmouth International Airport at Pease (PSM):
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.