Nonstop flight route between Port Heiden, Alaska, United States and Dunhuang, Gansu, China:
Departure Airport:
(56°57'33"N by 158°37'59"W)
Arrival Airport:
(40°9'39"N by 94°48'33"E)
Distance from PTH to DNH:
4,494.23 miles (7,232.74 km)
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Jump to:
- About this route
- PTH Airport Information
- DNH Airport Information
- Facts about PTH
- Facts about DNH
- Map of Nearest Airports to PTH
- List of Nearest Airports to PTH
- Map of Furthest Airports from PTH
- List of Furthest Airports from PTH
- Map of Nearest Airports to DNH
- List of Nearest Airports to DNH
- Map of Furthest Airports from DNH
- List of Furthest Airports from DNH
About this route:
A direct, nonstop flight between Port Heiden Airport (PTH), Port Heiden, Alaska, United States and Dunhuang Airport (DNH), Dunhuang, Gansu, China would travel a Great Circle distance of 4,494 miles (or 7,233 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 Port Heiden Airport and Dunhuang 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 Port Heiden Airport and Dunhuang Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | PTH / PAPH |
| Airport Names: |
|
| Location: | Port Heiden, Alaska, United States |
| GPS Coordinates: | 56°57'33"N by 158°37'59"W |
| Area Served: | Port Heiden, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 95 feet (29 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from PTH |
| More Information: | PTH Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | DNH / ZLDH |
| Airport Names: |
|
| Location: | Dunhuang, Gansu, China |
| GPS Coordinates: | 40°9'39"N by 94°48'33"E |
| Airport Type: | Public |
| View all routes: | Routes from DNH |
| More Information: | DNH Maps & Info |
Facts about Port Heiden Airport (PTH):
- The Air Force remediated the radar site around 2000, removing all abandoned military structures and returning the site to a natural condition.
- Because of Port Heiden Airport's relatively low elevation of 95 feet, planes can take off or land at Port Heiden 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.
- In addition to being known as "Port Heiden Airport", other names for PTH include "Port Heiden Air Force Station" and "Fort Morrow Army Airfield".
- The closest airport to Port Heiden Airport (PTH) is Chignik Fisheries Airport (KCG), which is located 44 miles (71 kilometers) S of PTH.
- The furthest airport from Port Heiden Airport (PTH) is George Airport (GRJ), which is located 10,850 miles (17,462 kilometers) away in George, South Africa.
- Port Heiden Airport is a state owned, public use airport located six nautical miles northeast of the central business district of Port Heiden, in the Lake and Peninsula Borough of the U.S.
- Port Heiden Airport (PTH) has 2 runways.
Facts about Dunhuang Airport (DNH):
- The furthest airport from Dunhuang Airport (DNH) is Pupelde Airfield (ZUD), which is located 11,831 miles (19,041 kilometers) away in Ancud, Los Lagos Region, Chile.
- The closest airport to Dunhuang Airport (DNH) is Jiayuguan Airport (JGN), which is located 188 miles (303 kilometers) E of DNH.
- In addition to being known as "Dunhuang Airport", other names for DNH include "敦煌机场" and "Dūnhuáng Jīchǎng".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 44.35 miles (71.37 km) S | Chignik Fisheries Airport (KCG) | Chignik, Alaska, United States. |     |
| 2 | 44.93 miles (72.32 km) S | Chignik Lagoon Airport (KCL) | Chignik Lagoon, Alaska, United States | |
| 3 | 46.43 miles (74.72 km) NE | Ugashik Bay Airport (UGB) | Pilot Point, Alaska, United States | |
| 4 | 46.69 miles (75.14 km) S | Chignik Bay Seaplane Base (KBW) | Chignik, Alaska, United States. | |
| 5 | 48.95 miles (78.78 km) S | Chignik Lake Airport (KCQ) | Chignik Lake, Alaska, United States | |
| 6 | 58.43 miles (94.03 km) NE | Pilot Point Airport (PIP) | Pilot Point, Alaska, United States | |
| 7 | 60.49 miles (97.35 km) NE | Ugashik Airport (UGS) | Ugashik, Alaska, United States | |
| 8 | 75.46 miles (121.44 km) SSW | Perryville Airport (KPV) | Perryville, Alaska, United States | |
| 9 | 96.70 miles (155.62 km) NNE | Egegik Airport (EGX) | Egegik, Alaska, United States | |
| 10 | 98.71 miles (158.85 km) SW | Port Moller Airport (PML) | Cold Bay, Alaska, United States | |
| 11 | 116.68 miles (187.79 km) WSW | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 12 | 129.57 miles (208.52 km) N | Clarks Point Airport (CLP) | Clarks Point, Alaska, United States | |
| 13 | 134.54 miles (216.52 km) NNE | South Naknek Airport (WSN) | South Naknek, Alaska, United States | |
| 14 | 134.94 miles (217.16 km) SSW | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 15 | 136.14 miles (219.09 km) NNE | Naknek Airport (NNK) | Naknek, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,850.22 miles (17,461.69 km) S | George Airport (GRJ) | George, South Africa | |
| 2 | 10,843.02 miles (17,450.10 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 3 | 10,836.89 miles (17,440.25 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,798.85 miles (17,379.02 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,755.74 miles (17,309.64 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,646.44 miles (17,133.73 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,582.57 miles (17,030.95 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,540.87 miles (16,963.85 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 9 | 10,538.89 miles (16,960.65 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 10 | 10,535.13 miles (16,954.60 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 11 | 10,533.59 miles (16,952.13 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 12 | 10,526.97 miles (16,941.47 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,520.45 miles (16,930.98 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 14 | 10,520.45 miles (16,930.98 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 15 | 10,513.38 miles (16,919.60 km) SSW | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 188.10 miles (302.71 km) E | Jiayuguan Airport (JGN) | Jiayuguan, Gansu, China | |
| 2 | 194.42 miles (312.89 km) NNW | Hami Airport (HMI) | Hami City, Xinjiang, China | |
| 3 | 259.83 miles (418.15 km) S | Golmud Airport (GOQ) | Golmud, Qinghai, China | |
| 4 | 326.53 miles (525.50 km) ESE | Zhangye Ganzhou Airport (YZY) | Zhangye, Gansu, China | |
| 5 | 346.84 miles (558.18 km) ENE | Ejin Banner Taolai Airport (EJN) | Ejin Banner, Inner Mongolia, China | |
| 6 | 355.28 miles (571.76 km) NW | Turpan Jiaohe Airport (TLQ) | Turpan, Xinjiang, China | |
| 7 | 369.17 miles (594.12 km) E | Alxa Right Banner Badanjilin Airport (RHT) | Alxa Right Banner, Inner Mongolia, China | |
| 8 | 417.87 miles (672.49 km) ESE | Jinchang Jinchuan Airport (JIC) | Jinchang, Gansu, China | |
| 9 | 435.19 miles (700.38 km) N | Altai Airport (LTI) | Altai, Govi-Altai, Mongolia | |
| 10 | 456.54 miles (734.73 km) NW | Ürümqi Diwopu International Airport (URC) | Ürümqi, Xinjiang, China | |
| 11 | 463.47 miles (745.89 km) WNW | Korla Airport (KRL) | Korla, Xinjiang, China | |
| 12 | 465.25 miles (748.74 km) ESE | Xining Caojiabao Airport (XNN) | Xining, Qinghai, China | |
| 13 | 510.10 miles (820.92 km) NNE | Bayankhongor Airport (BYN) | Bayankhongor, Mongolia | |
| 14 | 515.79 miles (830.09 km) WSW | Qiemo Airport (IQM) | Qiemo, Xinjiang, China | |
| 15 | 520.78 miles (838.11 km) SSE | Yushu Batang Airport (YUS) | Yushu County, Qinghai, China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,831.34 miles (19,040.65 km) WSW | Pupelde Airfield (ZUD) | Ancud, Los Lagos Region, Chile | |
| 2 | 11,823.56 miles (19,028.14 km) WSW | Gamboa Airport (WCA) | Castro, Chile | |
| 3 | 11,822.52 miles (19,026.45 km) WSW | Mocopulli Airport (MHC) | Castro, Los Lagos, Chile | |
| 4 | 11,798.50 miles (18,987.80 km) WSW | El Tepual International Airport (PMC) | Puerto Montt, Chile | |
| 5 | 11,798.16 miles (18,987.24 km) W | Cañal Bajo Carlos Hott Siebert Airport (ZOS) | Osorno, Chile | |
| 6 | 11,798.09 miles (18,987.14 km) W | Frutillar Airport (FRT) | Frutillar, Chile | |
| 7 | 11,794.75 miles (18,981.77 km) W | Pichoy Airport (ZAL) | Valdivia, Chile | |
| 8 | 11,763.82 miles (18,931.99 km) WSW | Chaitén Airfield (WCH) | Chaitén, Los Lagos, Chile | |
| 9 | 11,760.86 miles (18,927.22 km) W | Maquehue Airport (ZCO) | Temuco, Araucanía, Chile | |
| 10 | 11,740.90 miles (18,895.10 km) WSW | Carriel Sur International Airport (CCP) | Concepción, Bío Bío Region, Chile | |
| 11 | 11,737.25 miles (18,889.23 km) W | Victoria Airport (ZIC) | Victoria, Araucanía, Chile | |
| 12 | 11,729.74 miles (18,877.13 km) W | Pucón Airport (ZPC) | Pucón, Chile | |
| 13 | 11,715.37 miles (18,854.01 km) WSW | El Bolsón Airport (EHL) | El Bolsón, Río Negro, Argentina | |
| 14 | 11,698.86 miles (18,827.44 km) W | San Carlos de Bariloche Airport (BRC) | San Carlos de Bariloche, Río Negro Province, Argentina | |
| 15 | 11,696.32 miles (18,823.36 km) WSW | El Maitén Airport (EMX) | El Maitén, Neuquén, Argentina | |