Nonstop flight route between Lewiston, Idaho, United States and Portsmouth, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from LWS to PSM:
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- About this route
- LWS Airport Information
- PSM Airport Information
- Facts about LWS
- Facts about PSM
- Map of Nearest Airports to LWS
- List of Nearest Airports to LWS
- Map of Furthest Airports from LWS
- List of Furthest Airports from LWS
- 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 Lewiston-Nez Perce County Airport (LWS), Lewiston, Idaho, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 2,247 miles (or 3,615 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 Lewiston-Nez Perce County 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: | LWS / KLWS |
Airport Name: | Lewiston-Nez Perce County Airport |
Location: | Lewiston, Idaho, United States |
GPS Coordinates: | 46°22'27"N by 117°0'55"W |
Area Served: | Lewiston, Idaho Clarkston, Washington |
Operator/Owner: | City of Lewiston & Nez Perce County |
Airport Type: | Public |
Elevation: | 1442 feet (440 meters) |
# of Runways: | 2 |
View all routes: | Routes from LWS |
More Information: | LWS 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 Lewiston-Nez Perce County Airport (LWS):
- The closest airport to Lewiston-Nez Perce County Airport (LWS) is Pullman-Moscow Regional Airport (PUW), which is located 26 miles (42 kilometers) N of LWS.
- Lewiston-Nez Perce County Airport (LWS) has 2 runways.
- The furthest airport from Lewiston-Nez Perce County Airport (LWS) is Tôlanaro Airport (FTU), which is located 10,717 miles (17,248 kilometers) away in Tôlanaro, Madagascar.
- The short-lived Gem State Airlines of Coeur d'Alene served Lewiston for 11 months, until November 1979.Mountain West Airlines of Boise served Lewiston for less than three months before folding in early March 1981.Big Sky Airlines of Billings briefly served Lewiston in 1979.
- The airport began as a Chamber of Commerce project in 1931, and the original runway was paved in 1942.
Facts about Portsmouth International Airport at Pease (PSM):
- 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.
- The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
- 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.
- 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.