About this route:

A direct, nonstop flight between Tho Xuan Airport (THD), Thanh Hoa, Vietnam and Olga Bay Seaplane Base (KOY), Olga Bay, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 5,442 miles (or 8,758 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 Tho Xuan Airport and Olga 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 Tho Xuan Airport and Olga 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: THD /
Airport Names:
  1. Tho Xuan Airport
  2. THD[1]
  3. VV01[verification needed]
Location: Thanh Hoa, Vietnam
GPS Coordinates: 19°54'6"N by 105°28'4"E
Operator/Owner: Vietnam People's Air Force
Airport Type: Military, planned for civilian use in 2013
View all routes: Routes from THD
More Information: THD Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: KOY /
Airport Name: Olga Bay Seaplane Base
Location: Olga Bay, Kodiak Island Borough, Alaska, United States
GPS Coordinates: 57°9'41"N by 154°13'46"W
Area Served: Olga Bay, Alaska
Operator/Owner: Alaska Packers Association
Airport Type: Public
Elevation: 0 feet (0 meters)
# of Runways: 1
View all routes: Routes from KOY
More Information: KOY Maps & Info

Facts about Tho Xuan Airport (THD):

  • The furthest airport from Tho Xuan Airport (THD) is Ilo Airport (ILQ), which is nearly antipodal to Tho Xuan Airport (meaning Tho Xuan Airport is almost on the exact opposite side of the Earth from Ilo Airport), and is located 12,178 miles (19,599 kilometers) away in Ilo, Moquegua Region, Peru.
  • The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.
  • In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".

Facts about Olga Bay Seaplane Base (KOY):

  • The furthest airport from Olga Bay Seaplane Base (KOY) is Port Elizabeth International Airport (PLZ), which is located 10,835 miles (17,438 kilometers) away in Port Elizabeth, South Africa.
  • Olga Bay Seaplane Base has one seaplane landing area designated ALL/WAY with a water surface measuring 10,000 by 1,000 feet.
  • The closest airport to Olga Bay Seaplane Base (KOY) is Moser Bay Seaplane Base (KMY), which is located only 10 miles (16 kilometers) SSE of KOY.
  • Olga Bay Seaplane Base (KOY) currently has only 1 runway.
  • Because of Olga Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Olga 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 Tho Xuan Airport:

List of Nearest Airports to Tho Xuan Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
181.57 miles (131.28 km) SVinh Airport (VII)Vinh, Nghe An, VietnamView Vinh Airport on a map Set VII as origin Airport Set VII as destination Airport Get more information about Vinh Airport
293.77 miles (150.91 km) NNENội Bài International Airport (HAN)Hanoi, VietnamView Nội Bài International Airport on a map Set HAN as origin Airport Set HAN as destination Airport Get more information about Nội Bài International Airport
3103.19 miles (166.06 km) NECat Bi International Airport (HPH)Haiphong, VietnamView Cat Bi International Airport on a map Set HPH as origin Airport Set HPH as destination Airport Get more information about Cat Bi International Airport
4152.96 miles (246.16 km) WSWXieng Khouang Airport (XKH)Xieng Khouang, LaosView Xieng Khouang Airport on a map Set XKH as origin Airport Set XKH as destination Airport Get more information about Xieng Khouang Airport
5182.15 miles (293.14 km) SSWNakhon Phanom Airport (KOP)Nakhon Phanom, ThailandView Nakhon Phanom Airport on a map Set KOP as origin Airport Set KOP as destination Airport Get more information about Nakhon Phanom Airport
6189.66 miles (305.23 km) WNWDien Bien Phu Airport (DIN)Dien Bien Phu, VietnamView Dien Bien Phu Airport on a map Set DIN as origin Airport Set DIN as destination Airport Get more information about Dien Bien Phu Airport
7214.84 miles (345.75 km) WLuang Prabang International Airport (LPQ)Luang Prabang, LaosView Luang Prabang International Airport on a map Set LPQ as origin Airport Set LPQ as destination Airport Get more information about Luang Prabang International Airport
8231.30 miles (372.23 km) SWWattay International Airport (VTE)Vientiane, LaosView Wattay International Airport on a map Set VTE as origin Airport Set VTE as destination Airport Get more information about Wattay International Airport
9231.54 miles (372.62 km) WNWOudomsay Airport (ODY)Muang Xay, LaosView Oudomsay Airport on a map Set ODY as origin Airport Set ODY as destination Airport Get more information about Oudomsay Airport
10235.74 miles (379.39 km) SSWSavannakhet Airport (ZVK)Savannakhet, LaosView Savannakhet Airport on a map Set ZVK as origin Airport Set ZVK as destination Airport Get more information about Savannakhet Airport
11246.91 miles (397.37 km) SWUdon Thani International Airport ท่าอากาศยานอุดรธานี (UTH)Udon Thani, ThailandView Udon Thani International Airport ท่าอากาศยานอุดรธานี on a map Set UTH as origin Airport Set UTH as destination Airport Get more information about Udon Thani International Airport ท่าอากาศยานอุดรธานี
12247.49 miles (398.29 km) WSayaboury Airport (ZBY)Sayaboury, LaosView Sayaboury Airport on a map Set ZBY as origin Airport Set ZBY as destination Airport Get more information about Sayaboury Airport
13255.53 miles (411.23 km) NENanning Wuxu International Airport (NNG)Nanning, Guangxi, ChinaView Nanning Wuxu International Airport on a map Set NNG as origin Airport Set NNG as destination Airport Get more information about Nanning Wuxu International Airport
14263.27 miles (423.70 km) NNWWenshan Puzhehei Airport (WNH)Wenshan, Yunnan, ChinaView Wenshan Puzhehei Airport on a map Set WNH as origin Airport Set WNH as destination Airport Get more information about Wenshan Puzhehei Airport
15271.91 miles (437.59 km) ENEBeihai Fucheng Airport (BHY)Beihai, Guangxi, ChinaView Beihai Fucheng Airport on a map Set BHY as origin Airport Set BHY as destination Airport Get more information about Beihai Fucheng Airport

Map of Furthest Airports from Tho Xuan Airport:

List of Furthest Airports from Tho Xuan Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,178.48 miles (19,599.32 km) SWIlo Airport (ILQ)Ilo, Moquegua Region, PeruView Ilo Airport on a map Set ILQ as origin Airport Set ILQ as destination Airport Get more information about Ilo Airport
212,151.34 miles (19,555.64 km) WDiego Aracena International Airport (IQQ)Iquique, ChileView Diego Aracena International Airport on a map Set IQQ as origin Airport Set IQQ as destination Airport Get more information about Diego Aracena International Airport
312,142.77 miles (19,541.85 km) WSWChacalluta International Airport (ARI)Arica, ChileView Chacalluta International Airport on a map Set ARI as origin Airport Set ARI as destination Airport Get more information about Chacalluta International Airport
412,142.77 miles (19,541.85 km) WSWChacalluta International Airport (ACM)Arica, Amazonas, ColombiaView Chacalluta International Airport on a map Set ACM as origin Airport Set ACM as destination Airport Get more information about Chacalluta International Airport
512,123.73 miles (19,511.21 km) SWRodríguez Ballón International Airport (AQP)Arequipa, PeruView Rodríguez Ballón International Airport on a map Set AQP as origin Airport Set AQP as destination Airport Get more information about Rodríguez Ballón International Airport
612,101.58 miles (19,475.56 km) SWCarolina Airport (CLN)Carolina, Maranhão, BrazilView Carolina Airport on a map Set CLN as origin Airport Set CLN as destination Airport Get more information about Carolina Airport
712,086.91 miles (19,451.94 km) SMaria Reiche Neuman Airport (NZC)Nazca, Ica Region, PeruView Maria Reiche Neuman Airport on a map Set NZC as origin Airport Set NZC as destination Airport Get more information about Maria Reiche Neuman Airport
812,077.97 miles (19,437.57 km) SWAndrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) (ANF)Antofagasta, ChileView Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport) on a map Set ANF as origin Airport Set ANF as destination Airport Get more information about Andrés Sabella Gálvez International Airport (former Cerro Moreno International Airport)
912,032.57 miles (19,364.49 km) WSWEl Loa Airport (CJC)Calama, Antofagasta Region, ChileView El Loa Airport on a map Set CJC as origin Airport Set CJC as destination Airport Get more information about El Loa Airport
1012,016.39 miles (19,338.46 km) SWInca Manco Cápac International Airport (JUL)Juliaca, PeruView Inca Manco Cápac International Airport on a map Set JUL as origin Airport Set JUL as destination Airport Get more information about Inca Manco Cápac International Airport
1112,002.14 miles (19,315.52 km) SAndahuaylas Airport (ANS)Andahuaylas, PeruView Andahuaylas Airport on a map Set ANS as origin Airport Set ANS as destination Airport Get more information about Andahuaylas Airport
1211,997.02 miles (19,307.29 km) SSECapitán FAP Renán Elías Olivera International Airport (PIO)Pisco, PeruView Capitán FAP Renán Elías Olivera International Airport on a map Set PIO as origin Airport Set PIO as destination Airport Get more information about Capitán FAP Renán Elías Olivera International Airport
1311,970.12 miles (19,264.00 km) SCoronel FAP Alfredo Mendívil Duarte Airport (AYP)Ayacucho, PeruView Coronel FAP Alfredo Mendívil Duarte Airport on a map Set AYP as origin Airport Set AYP as destination Airport Get more information about Coronel FAP Alfredo Mendívil Duarte Airport
1411,970.12 miles (19,264.00 km) SCoronel FAP Alfredo Mendívil Duarte Airport (AYC)Ayacucho, PeruView Coronel FAP Alfredo Mendívil Duarte Airport on a map Set AYC as origin Airport Set AYC as destination Airport Get more information about Coronel FAP Alfredo Mendívil Duarte Airport
1511,964.81 miles (19,255.44 km) SSWAlejandro Velasco Astete International Airport (CUZ)Cusco, Cusco Region, PeruView Alejandro Velasco Astete International Airport on a map Set CUZ as origin Airport Set CUZ as destination Airport Get more information about Alejandro Velasco Astete International Airport

Map of Nearest Airports to Olga Bay Seaplane Base:

List of Nearest Airports to Olga Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
19.90 miles (15.93 km) SSEMoser Bay Seaplane Base (KMY)Moser Bay, Kodiak Island Borough, Alaska, United StatesView Moser Bay Seaplane Base on a map Set KMY as destination Airport Set KMY as destination Airport Get more information about Moser Bay Seaplane Base
215.49 miles (24.94 km) SAkhiok Airport (AKK)Akhiok, Alaska, United StatesView Akhiok Airport on a map Set AKK as destination Airport Set AKK as destination Airport Get more information about Akhiok Airport
318.11 miles (29.15 km) SAlitak Seaplane Base (ALZ)Lazy Bay, Alaska, United StatesView Alitak Seaplane Base on a map Set ALZ as destination Airport Set ALZ as destination Airport Get more information about Alitak Seaplane Base
426.42 miles (42.51 km) NEAmook Bay Seaplane Base (AOS)Amook Bay, Alaska, United StatesView Amook Bay Seaplane Base on a map Set AOS as destination Airport Set AOS as destination Airport Get more information about Amook Bay Seaplane Base
527.48 miles (44.23 km) NNELarsen Bay Airport (KLN)Larsen Bay, Alaska, United StatesView Larsen Bay Airport on a map Set KLN as destination Airport Set KLN as destination Airport Get more information about Larsen Bay Airport
629.18 miles (46.97 km) NNWKarluk Airport (KYK)Karluk, Alaska, United StatesView Karluk Airport on a map Set KYK as destination Airport Set KYK as destination Airport Get more information about Karluk Airport
732.54 miles (52.36 km) NNEZachar Bay Seaplane Base (KZB)Zachar Bay, Alaska, United StatesView Zachar Bay Seaplane Base on a map Set KZB as destination Airport Set KZB as destination Airport Get more information about Zachar Bay Seaplane Base
836.18 miles (58.22 km) EOld Harbor Airport (OLH)Old Harbor, Alaska, United StatesView Old Harbor Airport on a map Set OLH as destination Airport Set OLH as destination Airport Get more information about Old Harbor Airport
949.07 miles (78.98 km) NNEWest Point Village Seaplane Base (KWP)West Point, Kodiak Island Borough, Alaska, United StatesView West Point Village Seaplane Base on a map Set KWP as destination Airport Set KWP as destination Airport Get more information about West Point Village Seaplane Base
1051.84 miles (83.43 km) NESan Juan (Uganik) Seaplane Base (UGI)Uganik Island, United StatesView San Juan (Uganik) Seaplane Base on a map Set UGI as destination Airport Set UGI as destination Airport Get more information about San Juan (Uganik) Seaplane Base
1169.02 miles (111.08 km) NEPort Bailey Seaplane Base (KPY)Port Bailey, Kodiak Island Borough, Alaska, United StatesView Port Bailey Seaplane Base on a map Set KPY as destination Airport Set KPY as destination Airport Get more information about Port Bailey Seaplane Base
1271.67 miles (115.34 km) NEPort Lions Airport (ORI)Port Lions, Alaska, United StatesView Port Lions Airport on a map Set ORI as destination Airport Set ORI as destination Airport Get more information about Port Lions Airport
1376.25 miles (122.72 km) ENEKodiak Benny Benson State Airport (ADQ)Kodiak, Alaska, United StatesView Kodiak Benny Benson State Airport on a map Set ADQ as destination Airport Set ADQ as destination Airport Get more information about Kodiak Benny Benson State Airport
1482.05 miles (132.05 km) ENEKodiak Municipal Airport (KDK)Kodiak, Alaska, United StatesView Kodiak Municipal Airport on a map Set KDK as destination Airport Set KDK as destination Airport Get more information about Kodiak Municipal Airport
1584.79 miles (136.46 km) NEOuzinkie Airport (KOZ)Ouzinkie, Alaska, United StatesView Ouzinkie Airport on a map Set KOZ as destination Airport Set KOZ as destination Airport Get more information about Ouzinkie Airport

Map of Furthest Airports from Olga Bay Seaplane Base:

List of Furthest Airports from Olga Bay Seaplane Base:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,835.43 miles (17,437.89 km) SPort 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
210,829.06 miles (17,427.65 km) SGeorge 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
310,804.86 miles (17,388.69 km) SPort 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
410,799.37 miles (17,379.86 km) SSECape 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
510,767.01 miles (17,327.78 km) SEast 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
610,661.54 miles (17,158.05 km) SMthatha 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
710,606.32 miles (17,069.17 km) SMargate 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
810,547.44 miles (16,974.42 km) SLebakeng 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
910,545.72 miles (16,971.65 km) SSemonkong 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
1010,545.03 miles (16,970.53 km) SMafeteng 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
1110,539.12 miles (16,961.02 km) SLesobeng 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
1210,522.59 miles (16,934.42 km) SPietermaritzburg 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
1310,521.03 miles (16,931.91 km) SMoshoeshoe I International Airport (MSU)Maseru, LesothoView Moshoeshoe I International Airport on a map Set MSU as destination Airport Set MSU as destination Airport Get more information about Moshoeshoe I International Airport
1410,516.22 miles (16,924.17 km) SKing 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
1510,503.86 miles (16,904.28 km) SMokhotlong 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