Nonstop flight route between Gustavus, Alaska, United States and St. Mary's, Alaska, United States:
Departure Airport:
(58°25'31"N by 135°42'27"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from GST to KSM:
970.81 miles (1,562.37 km)
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Jump to:
- About this route
- GST Airport Information
- KSM Airport Information
- Facts about GST
- Facts about KSM
- Map of Nearest Airports to GST
- List of Nearest Airports to GST
- Map of Furthest Airports from GST
- List of Furthest Airports from GST
- 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 Gustavus Airport (GST), Gustavus, Alaska, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 971 miles (or 1,562 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 Gustavus 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: | GST / PAGS |
| Airport Name: | Gustavus Airport |
| Location: | Gustavus, Alaska, United States |
| GPS Coordinates: | 58°25'31"N by 135°42'27"W |
| Area Served: | Gustavus, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Southeastern Region |
| Airport Type: | Public |
| Elevation: | 35 feet (11 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from GST |
| More Information: | GST 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 Gustavus Airport (GST):
- The closest airport to Gustavus Airport (GST) is Excursion Inlet Seaplane Base (EXI), which is located only 9 miles (15 kilometers) E of GST.
- Because of Gustavus Airport's relatively low elevation of 35 feet, planes can take off or land at Gustavus 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.
- Gustavus Airport covers an area of 1,821 acres at an elevation of 35 feet above mean sea level.
- Gustavus Airport (GST) has 2 runways.
- As per Federal Aviation Administration records, the airport had 11,828 passenger boardings in calendar year 2008, 8,822 enplanements in 2009, and 9,996 in 2010.
- The furthest airport from Gustavus Airport (GST) is Port Elizabeth International Airport (PLZ), which is located 10,541 miles (16,964 kilometers) away in Port Elizabeth, South Africa.
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.
- 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 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 9.35 miles (15.05 km) E | Excursion Inlet Seaplane Base (EXI) | Excursion Inlet, Alaska, United States |     |
| 2 | 25.19 miles (40.54 km) SSE | Hoonah Airport (HNH) | Hoonah, Alaska, United States | |
| 3 | 28.14 miles (45.29 km) SW | Elfin Cove Seaplane Base (ELV) | Elfin Cove, Alaska, United States | |
| 4 | 31.65 miles (50.93 km) ESE | Funter Bay Seaplane Base (FNR) | Funter Bay, Alaska, United States | |
| 5 | 41.25 miles (66.38 km) E | Juneau International Airport (JNU) | Juneau, Alaska, United States | |
| 6 | 56.94 miles (91.64 km) N | Haines Airport (HNS) | Haines, Alaska, United States | |
| 7 | 68.80 miles (110.73 km) SSE | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 8 | 72.84 miles (117.23 km) N | Skagway Airport (SGY) | Skagway, Alaska, United States | |
| 9 | 75.81 miles (122.01 km) SSE | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 10 | 96.06 miles (154.60 km) S | Sitka Rocky Gutierrez Airport (SIT) | Sitka, Alaska, United States | |
| 11 | 120.96 miles (194.67 km) SE | Kake Airport (KAE) | Kake, Alaska, United States | |
| 12 | 151.74 miles (244.20 km) SE | Petersburg James A. Johnson Airport (PSG) | Petersburg, Alaska, United States | |
| 13 | 155.60 miles (250.42 km) SSE | Port Alexander Seaplane Base (PTD) | Port Alexander, Alaska, United States | |
| 14 | 159.26 miles (256.30 km) WNW | Yakutat Airport (YAK) | Yakutat, Alaska, United States | |
| 15 | 159.40 miles (256.53 km) N | Erik Nielsen Whitehorse International Airport (YXY) | Whitehorse, Yukon, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,541.05 miles (16,964.14 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,538.86 miles (16,960.62 km) SSE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 3 | 10,522.92 miles (16,934.95 km) SSE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,470.76 miles (16,851.01 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,440.21 miles (16,801.85 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,421.72 miles (16,772.10 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,374.42 miles (16,695.97 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 8 | 10,349.88 miles (16,656.47 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,341.51 miles (16,643.01 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 10 | 10,330.23 miles (16,624.85 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,316.67 miles (16,603.02 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 12 | 10,316.24 miles (16,602.35 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,304.37 miles (16,583.24 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 14 | 10,299.86 miles (16,575.97 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,296.57 miles (16,570.68 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 | |