Nonstop flight route between St. Mary's, Alaska, United States and Lost River, Alaska, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(65°23'45"N by 167°9'47"W)
Distance from KSM to LSR:
258.83 miles (416.54 km)
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Jump to:
- About this route
- KSM Airport Information
- LSR Airport Information
- Facts about KSM
- Facts about LSR
- 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 LSR
- List of Nearest Airports to LSR
- Map of Furthest Airports from LSR
- List of Furthest Airports from LSR
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Lost River 1 Airport (LSR), Lost River, Alaska, United States would travel a Great Circle distance of 259 miles (or 417 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 Lost River 1 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: | LSR / |
| Airport Name: | Lost River 1 Airport |
| Location: | Lost River, Alaska, United States |
| GPS Coordinates: | 65°23'45"N by 167°9'47"W |
| Area Served: | Lost River, Alaska |
| Operator/Owner: | Ron Sheardown |
| Airport Type: | Private |
| Elevation: | 80 feet (24 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LSR |
| More Information: | LSR Maps & Info |
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.
- 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.
- 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.
Facts about Lost River 1 Airport (LSR):
- Lost River 1 Airport (LSR) currently has only 1 runway.
- The closest airport to Lost River 1 Airport (LSR) is Port Clarence Coast Guard Station (KPC), which is located only 13 miles (21 kilometers) SE of LSR.
- Because of Lost River 1 Airport's relatively low elevation of 80 feet, planes can take off or land at Lost River 1 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 Lost River 1 Airport (LSR) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,354 miles (16,664 kilometers) away in Villa Las Estrellas, Antarctica.
| 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 | 13.19 miles (21.23 km) SE | Port Clarence Coast Guard Station (KPC) | Port Clarence, Alaska, United States | |
| 2 | 20.57 miles (33.11 km) ESE | Brevig Mission Airport (KTS) | Brevig Mission, Alaska, United States | |
| 3 | 24.62 miles (39.63 km) WNW | Tin City LRRS Airport (TNC) | Tin City, Alaska, United States | |
| 4 | 26.09 miles (41.98 km) ESE | Teller Airport (TLA) | Teller, Alaska, United States | |
| 5 | 30.94 miles (49.79 km) WNW | Wales Airport (WAA) | Wales, Alaska, United States | |
| 6 | 56.89 miles (91.56 km) WNW | Diomede Heliport (FAA: DM2) (DIO) | Diomede, Alaska, United States | |
| 7 | 66.32 miles (106.74 km) NNE | Shishmaref Airport (SHH) | Shishmaref, Alaska, United States | |
| 8 | 79.08 miles (127.26 km) SE | Nome Airport (OME) | Nome, Alaska, United States | |
| 9 | 106.19 miles (170.89 km) ESE | Council Airport (CIL) | Council, Alaska, United States | |
| 10 | 119.72 miles (192.68 km) ESE | White Mountain Airport (WMO) | White Mountain, Alaska, United States | |
| 11 | 133.20 miles (214.37 km) ENE | Deering Airport (DRG) | Deering, Alaska, United States | |
| 12 | 134.76 miles (216.87 km) ESE | Golovin Airport (GLV) | Golovin, Alaska, United States | |
| 13 | 152.64 miles (245.65 km) ESE | Elim Airport (ELI) | Elim, Alaska, United States | |
| 14 | 154.02 miles (247.86 km) SW | Savoonga Airport (SVA) | Savoonga, Alaska, United States | |
| 15 | 163.80 miles (263.61 km) NE | Ralph Wien Memorial Airport (OTZ) | Kotzebue, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,354.26 miles (16,663.53 km) ESE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 2 | 10,252.22 miles (16,499.31 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 3 | 10,231.96 miles (16,466.70 km) SSW | George Airport (GRJ) | George, South Africa | |
| 4 | 10,202.43 miles (16,419.18 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 5 | 10,160.12 miles (16,351.08 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,114.56 miles (16,277.76 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 7 | 10,003.93 miles (16,099.73 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 9,962.52 miles (16,033.09 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 9 | 9,937.30 miles (15,992.49 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 9,928.30 miles (15,978.02 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 11 | 9,928.30 miles (15,978.01 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 12 | 9,901.16 miles (15,934.33 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 13 | 9,894.99 miles (15,924.41 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 9,891.92 miles (15,919.47 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 15 | 9,887.57 miles (15,912.46 km) S | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |