Nonstop flight route between Tanacross, Alaska, United States and St. Mary's, Alaska, United States:
Departure Airport:
(63°22'27"N by 143°20'8"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from TSG to KSM:
636.16 miles (1,023.79 km)
Share this route:
Jump to:
- About this route
- TSG Airport Information
- KSM Airport Information
- Facts about TSG
- Facts about KSM
- Map of Nearest Airports to TSG
- List of Nearest Airports to TSG
- Map of Furthest Airports from TSG
- List of Furthest Airports from TSG
- 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 Tanacross Airport (TSG), Tanacross, Alaska, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 636 miles (or 1,024 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 Tanacross Airport and St. Mary's Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | TSG / |
| Airport Names: |
|
| Location: | Tanacross, Alaska, United States |
| GPS Coordinates: | 63°22'27"N by 143°20'8"W |
| Area Served: | Tanacross, Alaska |
| Operator/Owner: | Bureau of Land Management |
| Airport Type: | Public |
| Elevation: | 1549 feet (472 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from TSG |
| More Information: | TSG 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 Tanacross Airport (TSG):
- The closest airport to Tanacross Airport (TSG) is Tok Airport (TKJ), which is located only 11 miles (18 kilometers) ESE of TSG.
- Jurisdiction transferred to private ownership in 1947.
- Tanacross Airport (TSG) has 2 runways.
- In addition to being known as "Tanacross Airport", another name for TSG is "Tanacross Air Base".
- This general aviation airport is located 166 miles southeast of Fairbanks, Alaska.
- The furthest airport from Tanacross Airport (TSG) is Port Elizabeth International Airport (PLZ), which is located 10,351 miles (16,659 kilometers) away in Port Elizabeth, South Africa.
Facts about St. Mary's Airport (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 closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.47 miles (18.47 km) ESE | Tok Airport (TKJ) | Tok, Alaska, United States |     |
| 2 | 52.37 miles (84.28 km) ESE | Northway Airport (ORT) | Northway, Alaska, United States | |
| 3 | 59.75 miles (96.16 km) NW | Healy River Airport (HKB) | Healy Lake, Alaska, United States | |
| 4 | 64.10 miles (103.16 km) NE | Chicken Airport (CKX) | Chicken, Alaska, United States | |
| 5 | 84.69 miles (136.30 km) WNW | Allen Army Airfield (BIG) | Fort Greely, Delta Junction, Alaska, United States | |
| 6 | 86.56 miles (139.30 km) WNW | Delta Junction Airport (DJN) | Delta Junction, Alaska, United States | |
| 7 | 98.84 miles (159.07 km) SSE | Chisana Airport (CZN) | Chisana, Alaska, United States | |
| 8 | 102.30 miles (164.64 km) SE | Beaver Creek Airport (YXQ) | Beaver Creek, Yukon, Canada | |
| 9 | 107.64 miles (173.22 km) SW | Gulkana Airport (GKN) | Gulkana, Alaska, United States | |
| 10 | 116.91 miles (188.15 km) SSW | Copper Center Airport (CZC) | Copper Center, Alaska, United States | |
| 11 | 117.31 miles (188.79 km) NNE | Eagle Airport (EAA) | Eagle, Alaska, United States | |
| 12 | 134.58 miles (216.58 km) S | McCarthy Airport (MXY) | McCarthy, Alaska, United States | |
| 13 | 136.69 miles (219.98 km) ENE | Dawson City Airport (YDA) | Dawson City, Yukon, Canada | |
| 14 | 142.40 miles (229.17 km) S | May Creek Airport (MYK) | May Creek, Alaska, United States | |
| 15 | 144.70 miles (232.87 km) NW | Eielson Air Force Base (EIL) | Fairbanks, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,351.22 miles (16,658.64 km) SSE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,333.57 miles (16,630.23 km) SSE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 3 | 10,316.82 miles (16,603.27 km) SSE | George Airport (GRJ) | George, South Africa | |
| 4 | 10,305.80 miles (16,585.54 km) SSE | East London Airport (ELS) | East London, South Africa | |
| 5 | 10,261.91 miles (16,514.90 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 6 | 10,210.02 miles (16,431.40 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,173.06 miles (16,371.91 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,096.25 miles (16,248.30 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,091.36 miles (16,240.42 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 10 | 10,089.90 miles (16,238.07 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 11 | 10,088.51 miles (16,235.84 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 12 | 10,084.93 miles (16,230.08 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,079.80 miles (16,221.83 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 14 | 10,058.98 miles (16,188.32 km) SSE | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 15 | 10,057.13 miles (16,185.33 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 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 | |