Nonstop flight route between Hyder, Alaska, United States and Ulanhot, China:
Departure Airport:
(55°54'11"N by 130°0'24"W)
Arrival Airport:
(46°11'43"N by 122°0'29"E)
Distance from WHD to HLH:
4,246.25 miles (6,833.66 km)
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Jump to:
- About this route
- WHD Airport Information
- HLH Airport Information
- Facts about WHD
- Facts about HLH
- Map of Nearest Airports to WHD
- List of Nearest Airports to WHD
- Map of Furthest Airports from WHD
- List of Furthest Airports from WHD
- Map of Nearest Airports to HLH
- List of Nearest Airports to HLH
- Map of Furthest Airports from HLH
- List of Furthest Airports from HLH
About this route:
A direct, nonstop flight between Hyder Seaplane Base (WHD), Hyder, Alaska, United States and Ulanhot Airport (HLH), Ulanhot, China would travel a Great Circle distance of 4,246 miles (or 6,834 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 Hyder Seaplane Base and Ulanhot 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 Hyder Seaplane Base and Ulanhot Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | WHD / |
| Airport Names: |
|
| Location: | Hyder, Alaska, United States |
| GPS Coordinates: | 55°54'11"N by 130°0'24"W |
| Area Served: | Hyder, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from WHD |
| More Information: | WHD Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HLH / ZBUL |
| Airport Name: | Ulanhot Airport |
| Location: | Ulanhot, China |
| GPS Coordinates: | 46°11'43"N by 122°0'29"E |
| Elevation: | 0 feet (0 meters) |
| View all routes: | Routes from HLH |
| More Information: | HLH Maps & Info |
Facts about Hyder Seaplane Base (WHD):
- The closest airport to Hyder Seaplane Base (WHD) is Stewart Aerodrome (ZST), which is located only 2 miles (4 kilometers) NNE of WHD.
- Hyder Seaplane Base (WHD) currently has only 1 runway.
- The furthest airport from Hyder Seaplane Base (WHD) is Port Alfred Airport (AFD), which is located 10,540 miles (16,962 kilometers) away in Port Alfred, South Africa.
- Because of Hyder Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hyder 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.
- In addition to being known as "Hyder Seaplane Base", another name for WHD is "4Z7".
Facts about Ulanhot Airport (HLH):
- The furthest airport from Ulanhot Airport (HLH) is Port Stanley Airport (PSY), which is nearly antipodal to Ulanhot Airport (meaning Ulanhot Airport is almost on the exact opposite side of the Earth from Port Stanley Airport), and is located 12,057 miles (19,404 kilometers) away in Stanley, Falkland Islands, United Kingdom.
- The closest airport to Ulanhot Airport (HLH) is Arxan Yi'ershi Airport (YIE), which is located 126 miles (202 kilometers) NW of HLH.
- Because of Ulanhot Airport's relatively low elevation of 0 feet, planes can take off or land at Ulanhot 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 | 2.25 miles (3.61 km) NNE | Stewart Aerodrome (ZST) | Stewart, British Columbia, Canada |     |
| 2 | 67.79 miles (109.09 km) NW | Bronson Creek Airport (YBM) | Bronson Creek, British Columbia, Canada | |
| 3 | 74.05 miles (119.18 km) N | Bob Quinn Lake Airport (YBO) | Bob Quinn Lake, British Columbia, Canada | |
| 4 | 75.28 miles (121.16 km) WSW | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 5 | 76.55 miles (123.19 km) WSW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 6 | 81.39 miles (130.99 km) SW | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 7 | 85.42 miles (137.46 km) SW | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 8 | 99.31 miles (159.83 km) WNW | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| 9 | 99.38 miles (159.94 km) W | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 10 | 105.81 miles (170.28 km) WSW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 11 | 109.05 miles (175.49 km) S | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 12 | 109.61 miles (176.40 km) W | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 13 | 113.09 miles (182.00 km) S | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 14 | 114.02 miles (183.49 km) SSE | Northwest Regional Airport Terrace-Kitimat (YXT) | Terrace, British Columbia and Kitimat, British Columbia, Canada | |
| 15 | 120.32 miles (193.63 km) WSW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,539.92 miles (16,962.32 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,533.63 miles (16,952.20 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,530.26 miles (16,946.77 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,463.39 miles (16,839.16 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,460.53 miles (16,834.54 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,435.61 miles (16,794.45 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,398.55 miles (16,734.80 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,384.52 miles (16,712.22 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,363.16 miles (16,677.84 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,358.91 miles (16,671.02 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,343.07 miles (16,645.52 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,340.95 miles (16,642.10 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,330.40 miles (16,625.13 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,319.33 miles (16,607.31 km) SSE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 15 | 10,318.04 miles (16,605.23 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 125.64 miles (202.19 km) NW | Arxan Yi'ershi Airport (YIE) | Arxan, Inner Mongolia, China | |
| 2 | 155.81 miles (250.75 km) E | Daqing Sartu Airport (DQA) | Daqing, Heilongjiang, China | |
| 3 | 207.70 miles (334.26 km) E | Harbin Taiping International Airport (HRB) | Harbin, Heilongjiang, China | |
| 4 | 231.38 miles (372.37 km) NNW | Hulunbuir Hailar Airport (HLD) | Hailar, Inner Mongolia, China | |
| 5 | 235.01 miles (378.22 km) SE | Changchun Longjia International Airport (CGQ) | Changchun, Jilin, China | |
| 6 | 262.13 miles (421.86 km) ESE | Jilin Ertaizi Airport (JIL) | Jilin City, Jilin, China | |
| 7 | 313.69 miles (504.84 km) SSW | Chifeng Airport (CIF) | Chifeng, Inner Mongolia, China | |
| 8 | 323.18 miles (520.10 km) SSE | Shenyang Taoxian International Airport (SHE) | Shenyang, China | |
| 9 | 328.00 miles (527.87 km) SE | Tonghua Sanyuanpu Airport (TNH) | Tonghua, Jilin, China | |
| 10 | 331.17 miles (532.97 km) SSW | Chaoyang Airport (CHG) | Chaoyang, Liaoning, China | |
| 11 | 334.27 miles (537.96 km) WSW | Xilinhot Airport (XIL) | Xilinhot, Inner Mongolia, China | |
| 12 | 354.26 miles (570.13 km) S | Anshan Teng'ao Airport (AOG) | Anshan, Liaoning, China | |
| 13 | 355.12 miles (571.50 km) S | Jinzhou Xiaolingzi Airport (JNZ) | Jinzhou, Liaoning, China | |
| 14 | 367.40 miles (591.27 km) NE | Heihe Airport (HEK) | Heihe, Heilongjiang, China | |
| 15 | 370.73 miles (596.63 km) WNW | Choibalsan Airport (COQ) | Choibalsan, Mongolia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,057.33 miles (19,404.34 km) S | Port Stanley Airport (PSY) | Stanley, Falkland Islands, United Kingdom | |
| 2 | 12,049.03 miles (19,390.98 km) ESE | Puerto Deseado Airport (PUD) | Puerto Deseado, Santa Cruz Province, Argentina | |
| 3 | 12,047.43 miles (19,388.42 km) S | RAF Mount Pleasant (MPN) | Falkland Islands | |
| 4 | 12,023.77 miles (19,350.33 km) ESE | Almirante Marcos A. Zar Airport (REL) | Trelew, Chubut, Argentina | |
| 5 | 12,013.68 miles (19,334.10 km) ESE | El Tehuelche Airport (PMY) | Puerto Madryn, Argentina | |
| 6 | 11,991.63 miles (19,298.61 km) SE | Gobernador Edgardo Castello Airport (VDM) | Viedma, Argentina | |
| 7 | 11,981.40 miles (19,282.14 km) E | General Enrique Mosconi International Airport (CRD) | Comodoro Rivadavia, Chubut, Argentina | |
| 8 | 11,921.28 miles (19,185.39 km) SE | Antoine de Saint Exupéry Airport (OES) | San Antonio Oeste, Argentina | |
| 9 | 11,902.28 miles (19,154.81 km) S | Necochea Airport (NEC) | Necochea, Buenos Aires, Argentina | |
| 10 | 11,886.12 miles (19,128.82 km) S | Miramar Airport (MJR) | Miramar, Buenos Aires, Argentina | |
| 11 | 11,884.29 miles (19,125.86 km) SSE | Tres Arroyos Airport (OYO) | Tres Arroyos, Buenos Aires Province, Argentina | |
| 12 | 11,878.64 miles (19,116.77 km) SSE | Comandante Espora Airport (BHI) | Bahía Blanca, Buenos Aires Province, Argentina | |
| 13 | 11,865.61 miles (19,095.79 km) S | Astor Piazzolla International Airport (MDQ) | Mar del Plata, Buenos Aires Province, Argentina | |
| 14 | 11,842.46 miles (19,058.54 km) ESE | Gobernador Gregores Airport (GGS) | Gobernador Gregores, Santa Cruz, Argentina | |
| 15 | 11,817.86 miles (19,018.96 km) E | Perito Moreno Airport (PMQ) | Perito Moreno, Santa Cruz, Argentina | |