Nonstop flight route between St. Mary's, Alaska, United States and Ihu, Papua New Guinea:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(7°54'0"S by 145°24'0"E)
Distance from KSM to IHU:
5,547.14 miles (8,927.23 km)
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Jump to:
- About this route
- KSM Airport Information
- IHU Airport Information
- Facts about KSM
- Facts about IHU
- 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 IHU
- List of Nearest Airports to IHU
- Map of Furthest Airports from IHU
- List of Furthest Airports from IHU
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Ihu Airport (IHU), Ihu, Papua New Guinea would travel a Great Circle distance of 5,547 miles (or 8,927 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 Ihu 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 Ihu 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: | IHU / |
| Airport Names: |
|
| Location: | Ihu, Papua New Guinea |
| GPS Coordinates: | 7°54'0"S by 145°24'0"E |
| Elevation: | 40 feet (12 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IHU |
| More Information: | IHU Maps & Info |
Facts about St. Mary's Airport (KSM):
- 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.
- 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.
Facts about Ihu Airport (IHU):
- The closest airport to Ihu Airport (IHU) is Kerema Airport (KMA), which is located 26 miles (41 kilometers) E of IHU.
- In addition to being known as "Ihu Airport", another name for IHU is "AYIH".
- Ihu Airport (IHU) currently has only 1 runway.
- The furthest airport from Ihu Airport (IHU) is Governador Carlos Wilson Airport (FEN), which is located 11,611 miles (18,686 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.
- Because of Ihu Airport's relatively low elevation of 40 feet, planes can take off or land at Ihu 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.
| 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 | 25.78 miles (41.49 km) E | Kerema Airport (KMA) | Kerema, Papua New Guinea | |
| 2 | 48.46 miles (77.98 km) NW | Baimuru Airport (VMU) | Baimuru, Papua New Guinea | |
| 3 | 57.70 miles (92.86 km) NNE | Andakombe Airport (ADC) | Andakombe, Papua New Guinea | |
| 4 | 85.35 miles (137.36 km) WNW | Kikori Airport (KRI) | Kikori, Papua New Guinea | |
| 5 | 97.75 miles (157.32 km) ENE | Bulolo Airport (BUL) | Bulolo, Papua New Guinea | |
| 6 | 113.34 miles (182.40 km) NNE | Aiyura Airport (AYU) | Aiyura, Papua New Guinea | |
| 7 | 123.69 miles (199.06 km) ESE | Fane Airport (FNE) | Fane, Papua New Guinea | |
| 8 | 125.65 miles (202.21 km) N | Goroka Airport (GKA) | Goroka, Papua New Guinea | |
| 9 | 129.27 miles (208.03 km) NE | Lae Nadzab Airport (LAE) | Lae, Papua New Guinea, Papua New Guinea | |
| 10 | 132.93 miles (213.93 km) NNW | Chimbu Airport (CMU) | Kundiawa, Papua New Guinea | |
| 11 | 133.24 miles (214.44 km) NNE | Gusap Airport (GAP) | Gusap, Papua New Guinea | |
| 12 | 162.05 miles (260.79 km) NNW | Mount Hagen Airport (HGU) | Mount Hagen, Papua New Guinea | |
| 13 | 163.76 miles (263.55 km) SE | Jacksons International Airport (POM) | Port Moresby, Papua New Guinea | |
| 14 | 166.78 miles (268.40 km) SSW | Murray Island Airport (MYI) | Murray Island, Torres Strait Islands, Queensland, Australia | |
| 15 | 170.14 miles (273.81 km) NW | Mendi Airport (MDU) | Mendi, Papua New Guinea | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,610.94 miles (18,685.95 km) N | Governador Carlos Wilson Airport (FEN) | Fernando de Noronha, Pernambuco, Brazil | |
| 2 | 11,599.00 miles (18,666.74 km) NW | São Filipe Airport (SFL) | Fogo, Cape Verde | |
| 3 | 11,585.75 miles (18,645.41 km) NNE | Pinto Martins – Fortaleza International Airport (FOR) | Fortaleza, Ceará, Brazil | |
| 4 | 11,584.98 miles (18,644.17 km) NW | Mosteiros Airport (MTI) | Mosteiros, Cape Verde | |
| 5 | 11,545.32 miles (18,580.34 km) NW | Cesária Évora International Airport (VXE) | São Vicente, Cape Verde | |
| 6 | 11,543.70 miles (18,577.74 km) NNE | Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB) | Parnaiba, Piaui, Brazil | |
| 7 | 11,542.13 miles (18,575.21 km) NW | Praia International Airport (RAI) | Praia, Cape Verde | |
| 8 | 11,529.42 miles (18,554.76 km) NW | Agostinho Neto Airport (NTO) | Ponta do Sol, Santo Antão, Cape Verde | |
| 9 | 11,517.90 miles (18,536.22 km) NW | Preguiça Airport (SNE) | São Nicolau, Cape Verde | |
| 10 | 11,517.83 miles (18,536.11 km) NW | Maio Airport (MMO) | Maio, Cape Verde | |
| 11 | 11,512.15 miles (18,526.96 km) NNE | Gov. Dix-Sept Rosado Airport (MVF) | Mossoro, Rio Grande do Norte, Brazil | |
| 12 | 11,508.35 miles (18,520.84 km) NE | Barreirinhas Airport (BRB) | Barreirinhas, Maranhão, Brazil | |
| 13 | 11,481.67 miles (18,477.92 km) N | Augusto Severo International Airport (NAT) | Natal, Brazil | |
| 14 | 11,462.69 miles (18,447.37 km) NW | Aristides Pereira International Airport (BVC) | Boa Vista, Cape Verde | |
| 15 | 11,453.88 miles (18,433.19 km) NE | Marechal Cunha Machado International Airport (Tirirical) (SLZ) | São Luís, Brazil | |