Nonstop flight route between St. Mary's, Alaska, United States and Cape Palmas, Liberia:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(4°22'45"N by 7°41'48"W)
Distance from KSM to CPA:
7,667.80 miles (12,340.10 km)
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Jump to:
- About this route
- KSM Airport Information
- CPA Airport Information
- Facts about KSM
- Facts about CPA
- 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 CPA
- List of Nearest Airports to CPA
- Map of Furthest Airports from CPA
- List of Furthest Airports from CPA
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Cape Palmas Airport (CPA), Cape Palmas, Liberia would travel a Great Circle distance of 7,668 miles (or 12,340 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 large distance between St. Mary's Airport and Cape Palmas Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Mary's Airport and Cape Palmas Airport. You'll see that it will travel the same route of the red line on this map!
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: | CPA / GLCP |
| Airport Name: | Cape Palmas Airport |
| Location: | Cape Palmas, Liberia |
| GPS Coordinates: | 4°22'45"N by 7°41'48"W |
| Area Served: | Harper |
| Airport Type: | Public |
| Elevation: | 20 feet (6 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CPA |
| More Information: | CPA Maps & Info |
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.
- 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.
Facts about Cape Palmas Airport (CPA):
- Because of Cape Palmas Airport's relatively low elevation of 20 feet, planes can take off or land at Cape Palmas 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 Cape Palmas Airport (CPA) is Aranuka Airport (AAK), which is nearly antipodal to Cape Palmas Airport (meaning Cape Palmas Airport is almost on the exact opposite side of the Earth from Aranuka Airport), and is located 12,108 miles (19,486 kilometers) away in Aranuka, Kiribati.
- The closest airport to Cape Palmas Airport (CPA) is Sasstown Airport (SAZ), which is located 54 miles (88 kilometers) WNW of CPA.
- Cape Palmas Airport (CPA) 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 | 54.49 miles (87.69 km) WNW | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 2 | 104.64 miles (168.40 km) WNW | Greenville/Sinoe Airport (SNI) | Greenville, Liberia | |
| 3 | 114.17 miles (183.74 km) ENE | Sassandra Airport (ZSS) | Sassandra, Côte d'Ivoire | |
| 4 | 119.39 miles (192.13 km) NNW | Tchien Airport (THC) | Tchien, Liberia | |
| 5 | 149.31 miles (240.28 km) N | Guiglo Airport (GGO) | Guiglo, Côte d'Ivoire | |
| 6 | 167.42 miles (269.43 km) NE | Gagnoa Airport (GGN) | Gagnoa, Côte d'Ivoire | |
| 7 | 186.78 miles (300.59 km) NNE | Daloa Airport (DJO) | Daloa, Côte d'Ivoire (Ivory Coast) | |
| 8 | 188.48 miles (303.33 km) ENE | Divo Airport (DIV) | Divo, Côte d'Ivoire (Ivory Coast) | |
| 9 | 193.68 miles (311.70 km) WNW | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 10 | 200.03 miles (321.92 km) N | Man Airport (MJC) | Man, Côte d'Ivoire | |
| 11 | 223.52 miles (359.71 km) NNW | Nimba Airport (NIA) | Nimba, Liberia | |
| 12 | 223.71 miles (360.03 km) NW | Roberts International Airport Roberts Field (ROB) | Monrovia, Liberia | |
| 13 | 236.85 miles (381.17 km) NE | Yamoussoukro Airport (ASK) | Yamoussoukro, Côte d'Ivoire | |
| 14 | 247.13 miles (397.71 km) NNW | Nzérékoré Airport (NZE) | N'zerekore, Guinea | |
| 15 | 248.56 miles (400.02 km) WNW | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,108.27 miles (19,486.33 km) SSW | Aranuka Airport (AAK) | Aranuka, Kiribati | |
| 2 | 12,106.68 miles (19,483.76 km) SW | Beru Island Airport (BEZ) | Beru, Kiribati | |
| 3 | 12,103.50 miles (19,478.65 km) WSW | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 4 | 12,084.22 miles (19,447.63 km) SSW | Abemama Atoll Airport (AEA) | Abemama Atoll, Kiribati | |
| 5 | 12,034.52 miles (19,367.64 km) S | Bonriki International Airport (TRW) | Tarawa, Kiribati | |
| 6 | 12,007.09 miles (19,323.48 km) S | Abaiang Atoll Airport (ABF) | Abaiang, Kiribati | |
| 7 | 11,987.61 miles (19,292.15 km) S | Marakei Airport (MZK) | Marakei, Kiribati | |
| 8 | 11,980.53 miles (19,280.75 km) SE | Nauru International Airport (INU) | Yaren, Nauru | |
| 9 | 11,919.78 miles (19,182.97 km) S | Butaritari Atoll Airport (BBG) | Butaritari Atoll, Kiribati | |
| 10 | 11,883.71 miles (19,124.92 km) WSW | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 11 | 11,769.83 miles (18,941.65 km) NNE | Ebon Airport (EBO) | Ebon Atoll, Marshall Islands | |
| 12 | 11,722.88 miles (18,866.10 km) SSE | Mota Lava Airport (MTV) | Mota Lava, Vanuatu | |
| 13 | 11,716.55 miles (18,855.91 km) N | Enejit Airport (EJT) | Enejit, Marshall Islands | |
| 14 | 11,712.72 miles (18,849.75 km) N | Mili Airport (MIJ) | Mili Atoll, Marshall Islands | |
| 15 | 11,710.30 miles (18,845.85 km) NNE | Kili Airport (KIO) | Kili Island, Marshall Islands | |