Nonstop flight route between St. Mary's, Alaska, United States and Lewistown, Montana, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(47°2'57"N by 109°28'0"W)
Distance from KSM to LWT:
2,306.50 miles (3,711.94 km)
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- About this route
- KSM Airport Information
- LWT Airport Information
- Facts about KSM
- Facts about LWT
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to LWT
- List of Nearest Airports to LWT
- Map of Furthest Airports from LWT
- List of Furthest Airports from LWT
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Lewistown Municipal Airport (LWT), Lewistown, Montana, United States would travel a Great Circle distance of 2,306 miles (or 3,712 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 St. Mary's Airport and Lewistown Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Arrival 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 |
Facts about St. Mary's Airport (KSM):
- St. Mary's Airport (KSM) has 2 runways.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
Facts about Lewistown Municipal Airport (LWT):
- The airport covers 2,200 acres at an elevation of 4,170 feet.
- 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.
- Lewistown Municipal Airport (LWT) has 3 runways.
- 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.
- The closest airport to Lewistown Municipal Airport (LWT) is Roundup Airport (RPX), which is located 59 miles (95 kilometers) SE of LWT.
- In addition to being known as "Lewistown Municipal Airport", another name for LWT is "Lewistown Army Airfield".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 59.02 miles (94.99 km) SE | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 2 | 86.58 miles (139.33 km) WNW | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 3 | 94.16 miles (151.53 km) WNW | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 4 | 96.40 miles (155.14 km) SSE | Billings Logan International Airport (BIL) | Billings, Montana, United States | |
| 5 | 104.13 miles (167.57 km) N | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| 6 | 104.33 miles (167.91 km) SSW | Mission Field (LVM) | Livingston, Montana, United States | |
| 7 | 119.01 miles (191.53 km) SW | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 8 | 119.60 miles (192.48 km) E | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 9 | 122.80 miles (197.63 km) WSW | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 10 | 151.89 miles (244.44 km) NW | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 11 | 155.21 miles (249.78 km) ENE | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 12 | 162.76 miles (261.93 km) WSW | Bert Mooney Airport (BTM) | Butte, Montana, United States | |
| 13 | 172.66 miles (277.87 km) NW | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 14 | 174.87 miles (281.43 km) ESE | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 15 | 176.03 miles (283.29 km) S | Yellowstone Regional Airport (COD) | Cody, Wyoming, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,508.25 miles (16,911.35 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,468.58 miles (16,847.51 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,460.98 miles (16,835.27 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,443.02 miles (16,806.37 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,440.91 miles (16,802.98 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,341.54 miles (16,643.05 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,262.88 miles (16,516.46 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,236.83 miles (16,474.54 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,142.01 miles (16,321.94 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,139.80 miles (16,318.38 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,125.49 miles (16,295.36 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,105.42 miles (16,263.06 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,089.88 miles (16,238.05 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,070.25 miles (16,206.46 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,054.31 miles (16,180.80 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |