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

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Lewistown Municipal Airport (LWT), Lewistown, Montana, 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 Portsmouth International Airport at Pease and Lewistown Municipal Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

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.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• 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.
• 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.
• 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.
• It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.

Facts about Lewistown Municipal Airport (LWT):

• Lewistown was a satellite field for Great Falls Army Air Base.
• In addition to being known as "Lewistown Municipal Airport", another name for LWT is "Lewistown Army Airfield".
• Lewistown Municipal Airport (LWT) has 3 runways.
• The closest airport to Lewistown Municipal Airport (LWT) is Roundup Airport (RPX), which is located 59 miles (95 kilometers) SE of LWT.
• 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.
• 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.
• Lewiston Army Airfield was built in 1942 as one of four training facilities for B-17 Flying Fortress crews and had a storage site for the top secret Norden Bombsight.