Nonstop flight route between St. Mary's, Alaska, United States and Fort Simpson, Northwest Territories, Canada:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(61°45'37"N by 121°14'12"W)
Distance from KSM to YFS:
1,344.56 miles (2,163.85 km)
Share this route:
Jump to:
- About this route
- KSM Airport Information
- YFS Airport Information
- Facts about KSM
- Facts about YFS
- 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 YFS
- List of Nearest Airports to YFS
- Map of Furthest Airports from YFS
- List of Furthest Airports from YFS
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Fort Simpson Airport (YFS), Fort Simpson, Northwest Territories, Canada would travel a Great Circle distance of 1,345 miles (or 2,164 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 Fort Simpson 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: | YFS / CYFS |
| Airport Name: | Fort Simpson Airport |
| Location: | Fort Simpson, Northwest Territories, Canada |
| GPS Coordinates: | 61°45'37"N by 121°14'12"W |
| Operator/Owner: | Government of the Northwest Territories |
| Elevation: | 556 feet (169 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YFS |
| More Information: | YFS 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.
- 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.
Facts about Fort Simpson Airport (YFS):
- The closest airport to Fort Simpson Airport (YFS) is Wrigley Airport (YWY), which is located 122 miles (197 kilometers) NW of YFS.
- The furthest airport from Fort Simpson Airport (YFS) is Port Alfred Airport (AFD), which is located 10,037 miles (16,152 kilometers) away in Port Alfred, South Africa.
- Fort Simpson Airport (YFS) currently has only 1 runway.
- Because of Fort Simpson Airport's relatively low elevation of 556 feet, planes can take off or land at Fort Simpson 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 | 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 | 122.30 miles (196.82 km) NW | Wrigley Airport (YWY) | Wrigley, Northwest Territories, Canada | |
| 2 | 129.20 miles (207.92 km) SW | Fort Liard Airport (YJF) | Fort Liard, Northwest Territories, Canada | |
| 3 | 158.84 miles (255.63 km) NE | Whatì Airport (YLE) | Lac La Martre, Northwest Territories, Canada | |
| 4 | 191.74 miles (308.58 km) ESE | Hay River/Merlyn Carter Airport (YHY) | Hay River, Northwest Territories, Canada | |
| 5 | 204.21 miles (328.64 km) NE | Gamèti/Rae Lakes Airport (YRA) | Gamèti (formerly Rae Lakes), Northwest Territories, Canada | |
| 6 | 207.31 miles (333.63 km) SSW | Northern Rockies Regional Airport (YYE) | Fort Nelson, British Columbia, Canada | |
| 7 | 224.84 miles (361.84 km) ENE | Yellowknife Airport (YZF) | Yellowknife, Northwest Territories, Canada | |
| 8 | 234.44 miles (377.30 km) SSE | Rainbow Lake Airport (YOP) | Rainbow Lake, Alberta, Canada | |
| 9 | 247.86 miles (398.89 km) NNW | Déline Airport (YWJ) | Deline, Northwest Territories, Canada | |
| 10 | 252.10 miles (405.71 km) E | Fort Resolution Airport (YFR) | Fort Resolution, Northwest Territories, Canada | |
| 11 | 255.61 miles (411.36 km) NNW | Tulita Airport (ZFN) | Tulita, Northwest Territories, Canada | |
| 12 | 257.94 miles (415.11 km) SE | High Level Airport (YOJ) | High Level, Alberta, Canada | |
| 13 | 278.57 miles (448.31 km) WSW | Watson Lake Airport (YQH) | Watson Lake, Yukon, Canada | |
| 14 | 297.33 miles (478.51 km) NNW | Norman Wells Airport (YVQ) | Norman Wells, Northwest Territories, Canada | |
| 15 | 333.77 miles (537.14 km) ESE | Fort Smith Airport (YSM) | Fort Smith, Northwest Territories, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,036.59 miles (16,152.28 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,030.71 miles (16,142.82 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,027.74 miles (16,138.04 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 9,954.85 miles (16,020.73 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 9,950.03 miles (16,012.99 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 9,945.97 miles (16,006.44 km) ESE | George Airport (GRJ) | George, South Africa | |
| 7 | 9,887.52 miles (15,912.38 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 9,873.70 miles (15,890.14 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 9,852.23 miles (15,855.59 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 9,849.41 miles (15,851.04 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 9,840.08 miles (15,836.03 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 12 | 9,837.77 miles (15,832.31 km) ESE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 13 | 9,833.80 miles (15,825.93 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,832.06 miles (15,823.12 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 15 | 9,820.26 miles (15,804.14 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |