Nonstop flight route between Dunhuang, Gansu, China and Port Alexander, Alaska, United States:
Departure Airport:
(40°9'39"N by 94°48'33"E)
Arrival Airport:
(56°14'48"N by 134°38'53"W)
Distance from DNH to PTD:
5,176.26 miles (8,330.36 km)
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Jump to:
- About this route
- DNH Airport Information
- PTD Airport Information
- Facts about DNH
- Facts about PTD
- Map of Nearest Airports to DNH
- List of Nearest Airports to DNH
- Map of Furthest Airports from DNH
- List of Furthest Airports from DNH
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
About this route:
A direct, nonstop flight between Dunhuang Airport (DNH), Dunhuang, Gansu, China and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 5,176 miles (or 8,330 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 Dunhuang Airport and Port Alexander Seaplane Base, 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 Dunhuang Airport and Port Alexander Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | PTD / PAAP |
| Airport Names: |
|
| Location: | Port Alexander, Alaska, United States |
| GPS Coordinates: | 56°14'48"N by 134°38'53"W |
| Area Served: | Port Alexander, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PTD |
| More Information: | PTD Maps & Info |
Facts about Dunhuang Airport (DNH):
- 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".
- 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.
Facts about Port Alexander Seaplane Base (PTD):
- Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander Seaplane Base 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 Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
- The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 39.98 miles (64.34 km) E | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| 2 | 40.21 miles (64.71 km) E | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 3 | 55.24 miles (88.91 km) ESE | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 4 | 56.78 miles (91.38 km) NNE | Kake Airport (KAE) | Kake, Alaska, United States | |
| 5 | 59.38 miles (95.57 km) E | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 6 | 61.29 miles (98.64 km) ESE | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 7 | 61.58 miles (99.10 km) NNW | Sitka Rocky Gutierrez Airport (SIT) | Sitka, Alaska, United States | |
| 8 | 71.67 miles (115.35 km) ESE | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 9 | 75.33 miles (121.23 km) ENE | Petersburg James A. Johnson Airport (PSG) | Petersburg, Alaska, United States | |
| 10 | 76.38 miles (122.92 km) SE | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 11 | 78.74 miles (126.71 km) SE | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 12 | 85.40 miles (137.44 km) SE | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 13 | 86.86 miles (139.79 km) N | Angoon Seaplane Base (AGN) | Angoon, Alaska, United States | |
| 14 | 88.33 miles (142.16 km) N | Chatham Seaplane Base (CYM) | Chatham, Alaska, United States | |
| 15 | 88.72 miles (142.78 km) ENE | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,639.80 miles (17,123.05 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,636.65 miles (17,117.99 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,628.00 miles (17,104.07 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,554.56 miles (16,985.87 km) SE | George Airport (GRJ) | George, South Africa | |
| 5 | 10,550.30 miles (16,979.02 km) SSE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 6 | 10,537.99 miles (16,959.21 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,469.73 miles (16,849.35 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,459.21 miles (16,832.43 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,444.62 miles (16,808.94 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 10 | 10,442.29 miles (16,805.19 km) SSE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,427.82 miles (16,781.91 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,427.52 miles (16,781.43 km) SSE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 13 | 10,426.91 miles (16,780.44 km) SSE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 14 | 10,410.61 miles (16,754.20 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,407.54 miles (16,749.28 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |