Nonstop flight route between St. Mary's, Alaska, United States and Summit, Alaska, United States:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(63°19'53"N by 149°7'37"W)
Distance from KSM to UMM:
456.75 miles (735.06 km)
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Jump to:
- About this route
- KSM Airport Information
- UMM Airport Information
- Facts about KSM
- Facts about UMM
- 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 UMM
- List of Nearest Airports to UMM
- Map of Furthest Airports from UMM
- List of Furthest Airports from UMM
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Summit Airport (UMM), Summit, Alaska, United States would travel a Great Circle distance of 457 miles (or 735 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 Summit 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: | UMM / PAST |
| Airport Name: | Summit Airport |
| Location: | Summit, Alaska, United States |
| GPS Coordinates: | 63°19'53"N by 149°7'37"W |
| Area Served: | Summit, Alaska |
| Operator/Owner: | Alaska DOT&PF - Northern Region |
| Airport Type: | Public |
| Elevation: | 2409 feet (734 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UMM |
| More Information: | UMM Maps & Info |
Facts about St. Mary's Airport (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.
- 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.
Facts about Summit Airport (UMM):
- The furthest airport from Summit Airport (UMM) is Port Elizabeth International Airport (PLZ), which is located 10,397 miles (16,732 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Summit Airport (UMM) is McKinley National Park Airport (MCL), which is located 29 miles (46 kilometers) NNE of UMM.
- Summit Airport (UMM) currently has only 1 runway.
| 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 | 28.51 miles (45.88 km) NNE | McKinley National Park Airport (MCL) | McKinley Park, Alaska, United States | |
| 2 | 76.21 miles (122.64 km) SSW | Talkeetna Airport (TKA) | Talkeetna, Alaska, United States | |
| 3 | 84.02 miles (135.22 km) N | Nenana Municipal Airport (ENN) | Nenana, Alaska, United States | |
| 4 | 104.75 miles (168.58 km) WNW | Minchumina Airport (LMA) | Lake Minchumina, Alaska, United States | |
| 5 | 104.75 miles (168.58 km) WNW | Minchumina Airport (MHM) | Minchumina, Alaska, United States | |
| 6 | 109.46 miles (176.15 km) NNE | Fairbanks International Airport (FAI) | Fairbanks, Alaska, United States | |
| 7 | 110.73 miles (178.20 km) NNE | Eielson Air Force Base (EIL) | Fairbanks, Alaska, United States | |
| 8 | 112.88 miles (181.67 km) SSW | Willow Airport (WOW) | Willow, Alaska, United States | |
| 9 | 113.64 miles (182.88 km) NNE | Ladd Army Airfield (FBK) | Fairbanks / Fort Wainwright, Alaska, United States | |
| 10 | 114.05 miles (183.55 km) ENE | Allen Army Airfield (BIG) | Fort Greely, Delta Junction, Alaska, United States | |
| 11 | 114.89 miles (184.90 km) SW | Skwentna Airport (SKW) | Skwentna, Alaska, United States | |
| 12 | 115.62 miles (186.08 km) ENE | Delta Junction Airport (DJN) | Delta Junction, Alaska, United States | |
| 13 | 119.98 miles (193.09 km) S | Palmer Municipal Airport (PAQ) | Palmer, Alaska, United States | |
| 14 | 122.28 miles (196.79 km) S | Wasilla Airport (WWA) | Wasilla, Alaska, United States | |
| 15 | 123.84 miles (199.30 km) NNW | Manley Hot Springs Airport (MLY) | Manley Hot Springs, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,396.50 miles (16,731.51 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,377.92 miles (16,701.61 km) SSE | George Airport (GRJ) | George, South Africa | |
| 3 | 10,372.17 miles (16,692.34 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,340.40 miles (16,641.21 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 5 | 10,339.34 miles (16,639.51 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,238.55 miles (16,477.31 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,193.08 miles (16,404.13 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,124.19 miles (16,293.26 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,119.29 miles (16,285.38 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,114.47 miles (16,277.62 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,114.25 miles (16,277.26 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,109.31 miles (16,269.32 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,107.31 miles (16,266.11 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,092.01 miles (16,241.47 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 15 | 10,082.82 miles (16,226.69 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |