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)
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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):
- In addition to being known as "Tanacross Airport", another name for TSG is "Tanacross Air Base".
- 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.
- The closest airport to Tanacross Airport (TSG) is Tok Airport (TKJ), which is located only 11 miles (18 kilometers) ESE of TSG.
- Tanacross Airport (TSG) has 2 runways.
- Jurisdiction transferred to private ownership in 1947.
- As per Federal Aviation Administration records, the airport had 80 passenger boardings in calendar year 2008, 32 enplanements in 2009, and 97 in 2010.
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.
| 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 | |