About this route:

A direct, nonstop flight between Ulanhot Airport (HLH), Ulanhot, China and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 4,181 miles (or 6,729 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 Thorne Bay 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 Ulanhot Airport and Thorne Bay 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: 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: KTB /
Airport Name: Thorne Bay Seaplane Base
Location: Thorne Bay, Alaska, United States
GPS Coordinates: 55°41'17"N by 132°32'12"W
Area Served: Thorne Bay, Alaska
Operator/Owner: State of Alaska DOT&PF - Southeast Region
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from KTB
More Information: KTB 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.
  • 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.
  • The closest airport to Ulanhot Airport (HLH) is Arxan Yi'ershi Airport (YIE), which is located 126 miles (202 kilometers) NW of HLH.

Facts about Thorne Bay Seaplane Base (KTB):

  • The closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
  • Thorne Bay Seaplane Base has one seaplane landing area designated NW/SE with a water surface measuring 5,000 by 2,000 feet.
  • The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.
  • Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
  • Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay 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.

Map of Nearest Airports to Ulanhot Airport:

List of Nearest Airports to Ulanhot Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
1125.64 miles (202.19 km) NWArxan Yi'ershi Airport (YIE)Arxan, Inner Mongolia, ChinaView Arxan Yi'ershi Airport on a map Set YIE as origin Airport Set YIE as destination Airport Get more information about Arxan Yi'ershi Airport
2155.81 miles (250.75 km) EDaqing Sartu Airport (DQA)Daqing, Heilongjiang, ChinaView Daqing Sartu Airport on a map Set DQA as origin Airport Set DQA as destination Airport Get more information about Daqing Sartu Airport
3207.70 miles (334.26 km) EHarbin Taiping International Airport (HRB)Harbin, Heilongjiang, ChinaView Harbin Taiping International Airport on a map Set HRB as origin Airport Set HRB as destination Airport Get more information about Harbin Taiping International Airport
4231.38 miles (372.37 km) NNWHulunbuir Hailar Airport (HLD)Hailar, Inner Mongolia, ChinaView Hulunbuir Hailar Airport on a map Set HLD as origin Airport Set HLD as destination Airport Get more information about Hulunbuir Hailar Airport
5235.01 miles (378.22 km) SEChangchun Longjia International Airport (CGQ)Changchun, Jilin, ChinaView Changchun Longjia International Airport on a map Set CGQ as origin Airport Set CGQ as destination Airport Get more information about Changchun Longjia International Airport
6262.13 miles (421.86 km) ESEJilin Ertaizi Airport (JIL)Jilin City, Jilin, ChinaView Jilin Ertaizi Airport on a map Set JIL as origin Airport Set JIL as destination Airport Get more information about Jilin Ertaizi Airport
7313.69 miles (504.84 km) SSWChifeng Airport (CIF)Chifeng, Inner Mongolia, ChinaView Chifeng Airport on a map Set CIF as origin Airport Set CIF as destination Airport Get more information about Chifeng Airport
8323.18 miles (520.10 km) SSEShenyang Taoxian International Airport (SHE)Shenyang, ChinaView Shenyang Taoxian International Airport on a map Set SHE as origin Airport Set SHE as destination Airport Get more information about Shenyang Taoxian International Airport
9328.00 miles (527.87 km) SETonghua Sanyuanpu Airport (TNH)Tonghua, Jilin, ChinaView Tonghua Sanyuanpu Airport on a map Set TNH as origin Airport Set TNH as destination Airport Get more information about Tonghua Sanyuanpu Airport
10331.17 miles (532.97 km) SSWChaoyang Airport (CHG)Chaoyang, Liaoning, ChinaView Chaoyang Airport on a map Set CHG as origin Airport Set CHG as destination Airport Get more information about Chaoyang Airport
11334.27 miles (537.96 km) WSWXilinhot Airport (XIL)Xilinhot, Inner Mongolia, ChinaView Xilinhot Airport on a map Set XIL as origin Airport Set XIL as destination Airport Get more information about Xilinhot Airport
12354.26 miles (570.13 km) SAnshan Teng'ao Airport (AOG)Anshan, Liaoning, ChinaView Anshan Teng'ao Airport on a map Set AOG as origin Airport Set AOG as destination Airport Get more information about Anshan Teng'ao Airport
13355.12 miles (571.50 km) SJinzhou Xiaolingzi Airport (JNZ)Jinzhou, Liaoning, ChinaView Jinzhou Xiaolingzi Airport on a map Set JNZ as origin Airport Set JNZ as destination Airport Get more information about Jinzhou Xiaolingzi Airport
14367.40 miles (591.27 km) NEHeihe Airport (HEK)Heihe, Heilongjiang, ChinaView Heihe Airport on a map Set HEK as origin Airport Set HEK as destination Airport Get more information about Heihe Airport
15370.73 miles (596.63 km) WNWChoibalsan Airport (COQ)Choibalsan, MongoliaView Choibalsan Airport on a map Set COQ as origin Airport Set COQ as destination Airport Get more information about Choibalsan Airport

Map of Furthest Airports from Ulanhot Airport:

List of Furthest Airports from Ulanhot Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,057.33 miles (19,404.34 km) SPort Stanley Airport (PSY)Stanley, Falkland Islands, United KingdomView Port Stanley Airport on a map Set PSY as origin Airport Set PSY as destination Airport Get more information about Port Stanley Airport
212,049.03 miles (19,390.98 km) ESEPuerto Deseado Airport (PUD)Puerto Deseado, Santa Cruz Province, ArgentinaView Puerto Deseado Airport on a map Set PUD as origin Airport Set PUD as destination Airport Get more information about Puerto Deseado Airport
312,047.43 miles (19,388.42 km) SRAF Mount Pleasant (MPN)Falkland IslandsView RAF Mount Pleasant on a map Set MPN as origin Airport Set MPN as destination Airport Get more information about RAF Mount Pleasant
412,023.77 miles (19,350.33 km) ESEAlmirante Marcos A. Zar Airport (REL)Trelew, Chubut, ArgentinaView Almirante Marcos A. Zar Airport on a map Set REL as origin Airport Set REL as destination Airport Get more information about Almirante Marcos A. Zar Airport
512,013.68 miles (19,334.10 km) ESEEl Tehuelche Airport (PMY)Puerto Madryn, ArgentinaView El Tehuelche Airport on a map Set PMY as origin Airport Set PMY as destination Airport Get more information about El Tehuelche Airport
611,991.63 miles (19,298.61 km) SEGobernador Edgardo Castello Airport (VDM)Viedma, ArgentinaView Gobernador Edgardo Castello Airport on a map Set VDM as origin Airport Set VDM as destination Airport Get more information about Gobernador Edgardo Castello Airport
711,981.40 miles (19,282.14 km) EGeneral Enrique Mosconi International Airport (CRD)Comodoro Rivadavia, Chubut, ArgentinaView General Enrique Mosconi International Airport on a map Set CRD as origin Airport Set CRD as destination Airport Get more information about General Enrique Mosconi International Airport
811,921.28 miles (19,185.39 km) SEAntoine de Saint Exupéry Airport (OES)San Antonio Oeste, ArgentinaView Antoine de Saint Exupéry Airport on a map Set OES as origin Airport Set OES as destination Airport Get more information about Antoine de Saint Exupéry Airport
911,902.28 miles (19,154.81 km) SNecochea Airport (NEC)Necochea, Buenos Aires, ArgentinaView Necochea Airport on a map Set NEC as origin Airport Set NEC as destination Airport Get more information about Necochea Airport
1011,886.12 miles (19,128.82 km) SMiramar Airport (MJR)Miramar, Buenos Aires, ArgentinaView Miramar Airport on a map Set MJR as origin Airport Set MJR as destination Airport Get more information about Miramar Airport
1111,884.29 miles (19,125.86 km) SSETres Arroyos Airport (OYO)Tres Arroyos, Buenos Aires Province, ArgentinaView Tres Arroyos Airport on a map Set OYO as origin Airport Set OYO as destination Airport Get more information about Tres Arroyos Airport
1211,878.64 miles (19,116.77 km) SSEComandante Espora Airport (BHI)Bahía Blanca, Buenos Aires Province, ArgentinaView Comandante Espora Airport on a map Set BHI as origin Airport Set BHI as destination Airport Get more information about Comandante Espora Airport
1311,865.61 miles (19,095.79 km) SAstor Piazzolla International Airport (MDQ)Mar del Plata, Buenos Aires Province, ArgentinaView Astor Piazzolla International Airport on a map Set MDQ as origin Airport Set MDQ as destination Airport Get more information about Astor Piazzolla International Airport
1411,842.46 miles (19,058.54 km) ESEGobernador Gregores Airport (GGS)Gobernador Gregores, Santa Cruz, ArgentinaView Gobernador Gregores Airport on a map Set GGS as origin Airport Set GGS as destination Airport Get more information about Gobernador Gregores Airport
1511,817.86 miles (19,018.96 km) EPerito Moreno Airport (PMQ)Perito Moreno, Santa Cruz, ArgentinaView Perito Moreno Airport on a map Set PMQ as origin Airport Set PMQ as destination Airport Get more information about Perito Moreno Airport

Map of Nearest Airports to Thorne Bay Seaplane Base:

List of Nearest Airports to Thorne Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
114.06 miles (22.63 km) SSWHollis Clark Bay Seaplane Base (HYL)Hollis, Alaska, United StatesView Hollis Clark Bay Seaplane Base on a map Set HYL as destination Airport Set HYL as destination Airport Get more information about Hollis Clark Bay Seaplane Base
222.34 miles (35.96 km) WSWKlawock Airport (KLW)Klawock, Alaska, United StatesView Klawock Airport on a map Set KLW as destination Airport Set KLW as destination Airport Get more information about Klawock Airport
325.34 miles (40.79 km) NNWCoffman Cove Seaplane Base (KCC)Coffman Cove, Alaska, United StatesView Coffman Cove Seaplane Base on a map Set KCC as destination Airport Set KCC as destination Airport Get more information about Coffman Cove Seaplane Base
427.90 miles (44.90 km) WSWCraig Seaplane Base (CGA)Craig, Alaska, United StatesView Craig Seaplane Base on a map Set CGA as destination Airport Set CGA as destination Airport Get more information about Craig Seaplane Base
529.09 miles (46.82 km) WNWNaukati Bay Seaplane Base (WNC)Tuxekan Island, Alaska, United StatesView Naukati Bay Seaplane Base on a map Set WNC as destination Airport Set WNC as destination Airport Get more information about Naukati Bay Seaplane Base
635.17 miles (56.60 km) WNWTokeen Seaplane Base (TKI)Tokeen, Alaska, United StatesView Tokeen Seaplane Base on a map Set TKI as destination Airport Set TKI as destination Airport Get more information about Tokeen Seaplane Base
735.19 miles (56.63 km) SSWHydaburg Seaplane Base (HYG)Hydaburg, Alaska, United StatesView Hydaburg Seaplane Base on a map Set HYG as destination Airport Set HYG as destination Airport Get more information about Hydaburg Seaplane Base
837.27 miles (59.99 km) NWNorth Whale Seaplane Base (WWP)North Whale Pass, Alaska, United StatesView North Whale Seaplane Base on a map Set WWP as destination Airport Set WWP as destination Airport Get more information about North Whale Seaplane Base
938.70 miles (62.28 km) SWWaterfall Seaplane Base (KWF)Waterfall, Alaska, United StatesView Waterfall Seaplane Base on a map Set KWF as destination Airport Set KWF as destination Airport Get more information about Waterfall Seaplane Base
1039.68 miles (63.87 km) SEKetchikan International Airport (KTN)Ketchikan, Alaska, United StatesView Ketchikan International Airport on a map Set KTN as destination Airport Set KTN as destination Airport Get more information about Ketchikan International Airport
1141.60 miles (66.95 km) SEKetchikan Harbor Seaplane Base (WFB)Ketchikan, Alaska, United StatesView Ketchikan Harbor Seaplane Base on a map Set WFB as destination Airport Set WFB as destination Airport Get more information about Ketchikan Harbor Seaplane Base
1253.80 miles (86.58 km) SEMetlakatla Seaplane Base (MTM)Metlakatla, Annette Island, Alaska, United StatesView Metlakatla Seaplane Base on a map Set MTM as destination Airport Set MTM as destination Airport Get more information about Metlakatla Seaplane Base
1355.40 miles (89.16 km) NWrangell Airport (WRG)Wrangell, Alaska, United StatesView Wrangell Airport on a map Set WRG as destination Airport Set WRG as destination Airport Get more information about Wrangell Airport
1458.51 miles (94.17 km) SEAnnette Island Airport (ANN)Annette Island, Alaska, United StatesView Annette Island Airport on a map Set ANN as destination Airport Set ANN as destination Airport Get more information about Annette Island Airport
1560.66 miles (97.62 km) NWPort Protection Seaplane Base (PPV)Port Protection, Alaska, United StatesView Port Protection Seaplane Base on a map Set PPV as destination Airport Set PPV as destination Airport Get more information about Port Protection Seaplane Base

Map of Furthest Airports from Thorne Bay Seaplane Base:

List of Furthest Airports from Thorne Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,618.12 miles (17,088.17 km) SEPort Alfred Airport (AFD)Port Alfred, South AfricaView Port Alfred Airport on a map Set AFD as destination Airport Set AFD as destination Airport Get more information about Port Alfred Airport
210,611.06 miles (17,076.80 km) SEPort Elizabeth International Airport (PLZ)Port Elizabeth, South AfricaView Port Elizabeth International Airport on a map Set PLZ as destination Airport Set PLZ as destination Airport Get more information about Port Elizabeth International Airport
310,609.57 miles (17,074.40 km) SEEast London Airport (ELS)East London, South AfricaView East London Airport on a map Set ELS as destination Airport Set ELS as destination Airport Get more information about East London Airport
410,536.12 miles (16,956.21 km) SEMthatha Airport (UTT)Mthatha, South AfricaView Mthatha Airport on a map Set UTT as destination Airport Set UTT as destination Airport Get more information about Mthatha Airport
510,529.16 miles (16,945.00 km) SSEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as destination Airport Set MGH as destination Airport Get more information about Margate Airport
610,521.15 miles (16,932.11 km) SEGeorge Airport (GRJ)George, South AfricaView George Airport on a map Set GRJ as destination Airport Set GRJ as destination Airport Get more information about George Airport
710,464.33 miles (16,840.66 km) SSEKing Shaka International (DUR)Durban, KwaZulu-Natal, South AfricaView King Shaka International on a map Set DUR as destination Airport Set DUR as destination Airport Get more information about King Shaka International
810,451.86 miles (16,820.59 km) SSEPietermaritzburg Airport (PZB)Pietermaritzburg, South AfricaView Pietermaritzburg Airport on a map Set PZB as destination Airport Set PZB as destination Airport Get more information about Pietermaritzburg Airport
910,430.04 miles (16,785.47 km) SELebakeng Airport (LEF)Lebakeng, LesothoView Lebakeng Airport on a map Set LEF as destination Airport Set LEF as destination Airport Get more information about Lebakeng Airport
1010,425.95 miles (16,778.90 km) SSERichards Bay Airport (RCB)Richards Bay, KwaZulu-Natal, South AfricaView Richards Bay Airport on a map Set RCB as destination Airport Set RCB as destination Airport Get more information about Richards Bay Airport
1110,414.65 miles (16,760.71 km) SELesobeng Airport (LES)Lesobeng, LesothoView Lesobeng Airport on a map Set LES as destination Airport Set LES as destination Airport Get more information about Lesobeng Airport
1210,413.17 miles (16,758.33 km) SESemonkong Airport (SOK)Semonkong, LesothoView Semonkong Airport on a map Set SOK as destination Airport Set SOK as destination Airport Get more information about Semonkong Airport
1310,403.14 miles (16,742.18 km) SECape Town International Airport (CPT)Cape Town, South AfricaView Cape Town International Airport on a map Set CPT as destination Airport Set CPT as destination Airport Get more information about Cape Town International Airport
1410,400.12 miles (16,737.33 km) SEMokhotlong Airport (MKH)Mokhotlong, LesothoView Mokhotlong Airport on a map Set MKH as destination Airport Set MKH as destination Airport Get more information about Mokhotlong Airport
1510,391.75 miles (16,723.87 km) SEMafeteng Airport (MFC)Mafeteng, LesothoView Mafeteng Airport on a map Set MFC as destination Airport Set MFC as destination Airport Get more information about Mafeteng Airport