Nonstop flight route between Ulanhot, China and St. Mary's, Alaska, United States:
Departure Airport:
(46°11'43"N by 122°0'29"E)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from HLH to KSM:
3,017.92 miles (4,856.86 km)
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- About this route
- HLH Airport Information
- KSM Airport Information
- Facts about HLH
- Facts about KSM
- Map of Nearest Airports to HLH
- List of Nearest Airports to HLH
- Map of Furthest Airports from HLH
- List of Furthest Airports from HLH
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Ulanhot Airport (HLH), Ulanhot, China and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,018 miles (or 4,857 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 Ulanhot Airport and St. Mary's 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 Ulanhot Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival 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 |
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.
Facts about St. Mary's Airport (KSM):
- 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.
- 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.
| 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 | |
| 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 | |