Nonstop flight route between Johnstown, Pennsylvania, United States and St. Mary's, Alaska, United States:
Departure Airport:
(40°18'56"N by 78°50'4"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from JST to KSM:
3,641.01 miles (5,859.62 km)
Share this route:
Jump to:
- About this route
- JST Airport Information
- KSM Airport Information
- Facts about JST
- Facts about KSM
- Map of Nearest Airports to JST
- List of Nearest Airports to JST
- Map of Furthest Airports from JST
- List of Furthest Airports from JST
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between John Murtha Johnstown–Cambria County Airport (JST), Johnstown, Pennsylvania, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,641 miles (or 5,860 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 large distance between John Murtha Johnstown–Cambria County Airport and St. Mary's Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between John Murtha Johnstown–Cambria County Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | JST / KJST |
| Airport Name: | John Murtha Johnstown–Cambria County Airport |
| Location: | Johnstown, Pennsylvania, United States |
| GPS Coordinates: | 40°18'56"N by 78°50'4"W |
| Area Served: | Johnstown, Pennsylvania |
| Operator/Owner: | Johnstown–Cambria County Airport Authority |
| Airport Type: | Public |
| Elevation: | 2284 feet (696 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from JST |
| More Information: | JST Maps & Info |
Arrival 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 |
Facts about John Murtha Johnstown–Cambria County Airport (JST):
- Although the airport has only three commercial flights and little other activity, as of April 2009, the airport had received almost $200 million in federal subsidies.
- John Murtha Johnstown–Cambria County Airport (JST) has 2 runways.
- The furthest airport from John Murtha Johnstown–Cambria County Airport (JST) is Margaret River Airport (MGV), which is located 11,553 miles (18,593 kilometers) away in Margaret River, Western Australia, Australia.
- The airport opened in 1948 as Johnstown Municipal Airport,Allegheny Airlines was its airline until Allegheny Commuter took over in 1970.
- The closest airport to John Murtha Johnstown–Cambria County Airport (JST) is Indiana County-Jimmy Stewart Airport (IDI), which is located 26 miles (42 kilometers) NNW of JST.
Facts about St. Mary's Airport (KSM):
- 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 26.10 miles (42.01 km) NNW | Indiana County-Jimmy Stewart Airport (IDI) | Indiana, Pennsylvania, United States |     |
| 2 | 27.15 miles (43.70 km) E | Altoona–Blair County Airport (AOO) | Altoona, Pennsylvania, United States | |
| 3 | 30.27 miles (48.72 km) W | Arnold Palmer Regional Airport (LBE) | Latrobe (near Pittsburgh), Pennsylvania, United States | |
| 4 | 30.27 miles (48.72 km) W | Arnold Palmer Regional Airport (LTB) | Latrobe, Tasmania, Australia | |
| 5 | 48.52 miles (78.09 km) S | Greater Cumberland Regional Airport (CBE) | Cumberland, Maryland, United States | |
| 6 | 55.47 miles (89.27 km) NE | Mid-State Regional Airport (PSB) | Philipsburg, Pennsylvania, United States | |
| 7 | 57.76 miles (92.95 km) W | Allegheny County Airport (AGC) | Pittsburgh, Pennsylvania, United States | |
| 8 | 59.56 miles (95.86 km) W | Forbes Field (FOE) | Topeka, Kansas, United States | |
| 9 | 59.71 miles (96.09 km) N | DuBois Regional Airport (DUJ) | DuBois, Pennsylvania, United States | |
| 10 | 63.54 miles (102.25 km) NE | University Park Airport (SCE) | State College, Pennsylvania, United States | |
| 11 | 66.66 miles (107.27 km) WNW | Butler County Airport (BTP) | Butler, Pennsylvania, United States | |
| 12 | 68.21 miles (109.77 km) ENE | Mifflin County Airport (RED) | Reedsville, Pennsylvania, United States | |
| 13 | 72.10 miles (116.03 km) SE | Hagerstown Regional Airport (HGR) | Hagerstown, Maryland, United States | |
| 14 | 73.76 miles (118.70 km) SW | Morgantown Municipal Airport (MGW) | Morgantown, West Virginia, United States | |
| 15 | 74.22 miles (119.45 km) WSW | Greene County Airport (WAY) | Waynesburg, Pennsylvania, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,552.90 miles (18,592.55 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,529.22 miles (18,554.43 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,515.28 miles (18,532.00 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,503.95 miles (18,513.77 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,455.29 miles (18,435.46 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,452.71 miles (18,431.30 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,441.21 miles (18,412.80 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,430.46 miles (18,395.50 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,420.84 miles (18,380.02 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,394.23 miles (18,337.19 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,331.56 miles (18,236.33 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,299.20 miles (18,184.25 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,289.11 miles (18,168.02 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,282.62 miles (18,157.57 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,211.97 miles (18,043.87 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 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 | |