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)
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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 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
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.
- 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.
- 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.
| 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 | |