About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Lanyu Airport (KYD), Orchid Island, Taitung County, Taiwan would travel a Great Circle distance of 6,639 miles (or 10,685 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 Helena Regional Airport and Lanyu 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 Helena Regional Airport and Lanyu Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: HLN / KHLN
Airport Names:
  1. Helena Regional Airport
  2. Helena Army Airfield
Location: Helena, Montana, United States
GPS Coordinates: 46°36'24"N by 111°58'58"W
Area Served: Helena, Montana
Operator/Owner: Helena Regional Airport Authority
Airport Type: Public
Elevation: 3877 feet (1,182 meters)
# of Runways: 3
View all routes: Routes from HLN
More Information: HLN Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: KYD / RCLY
Airport Names:
  1. Lanyu Airport
  2. 蘭嶼航空站蘭嶼機場
  3. Lányǔ HángkōngzhànLányǔ Jīchǎng
Location: Orchid Island, Taitung County, Taiwan
GPS Coordinates: 22°1'45"N by 121°31'37"E
Area Served: Orchid Island
Operator/Owner: Civil Aeronautics Administration
Ministry of National Defense
Airport Type: Public
Elevation: 44 feet (13 meters)
# of Runways: 1
View all routes: Routes from KYD
More Information: KYD Maps & Info

Facts about Helena Regional Airport (HLN):

  • The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
  • In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
  • The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
  • Helena Regional Airport (HLN) has 3 runways.

Facts about Lanyu Airport (KYD):

  • Lanyu Airport (KYD) currently has only 1 runway.
  • In addition to being known as "Lanyu Airport", other names for KYD include "蘭嶼航空站蘭嶼機場" and "Lányǔ HángkōngzhànLányǔ Jīchǎng".
  • The closest airport to Lanyu Airport (KYD) is Lyudao Airport (Green Island Airport) (GNI), which is located 45 miles (72 kilometers) N of KYD.
  • The furthest airport from Lanyu Airport (KYD) is Dr. Luis María Argaña International Airport (ESG), which is nearly antipodal to Lanyu Airport (meaning Lanyu Airport is almost on the exact opposite side of the Earth from Dr. Luis María Argaña International Airport), and is located 12,299 miles (19,794 kilometers) away in Mariscal Estigarribia, Paraguay.
  • Because of Lanyu Airport's relatively low elevation of 44 feet, planes can take off or land at Lanyu 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.

Map of Nearest Airports to Helena Regional Airport:

List of Nearest Airports to Helena Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
151.31 miles (82.58 km) SSWBert Mooney Airport (BTM)Butte, Montana, United StatesView Bert Mooney Airport on a map Set BTM as origin Airport Set BTM as destination Airport Get more information about Bert Mooney Airport
267.05 miles (107.90 km) NNEGreat Falls International Airport (GTF)Great Falls, Montana, United StatesView Great Falls International Airport on a map Set GTF as origin Airport Set GTF as destination Airport Get more information about Great Falls International Airport
369.72 miles (112.21 km) SEBozeman Yellowstone International Airport (BZN)Bozeman, Montana, United StatesView Bozeman Yellowstone International Airport on a map Set BZN as origin Airport Set BZN as destination Airport Get more information about Bozeman Yellowstone International Airport
472.47 miles (116.63 km) NNEMalmstrom Air Force Base (GFA)Great Falls, Montana, United StatesView Malmstrom Air Force Base on a map Set GFA as origin Airport Set GFA as destination Airport Get more information about Malmstrom Air Force Base
596.56 miles (155.40 km) SEMission Field (LVM)Livingston, Montana, United StatesView Mission Field on a map Set LVM as origin Airport Set LVM as destination Airport Get more information about Mission Field
697.30 miles (156.59 km) SSWDillon Airport (DLN)Dillon, Montana, United StatesView Dillon Airport on a map Set DLN as origin Airport Set DLN as destination Airport Get more information about Dillon Airport
7102.03 miles (164.20 km) WNWMissoula International Airport (MSO)Missoula, Montana, United StatesView Missoula International Airport on a map Set MSO as origin Airport Set MSO as destination Airport Get more information about Missoula International Airport
8122.80 miles (197.63 km) ENELewistown Municipal Airport (LWT)Lewistown, Montana, United StatesView Lewistown Municipal Airport on a map Set LWT as origin Airport Set LWT as destination Airport Get more information about Lewistown Municipal Airport
9133.72 miles (215.20 km) NShelby Airport (SBX)Shelby, Montana, United StatesView Shelby Airport on a map Set SBX as origin Airport Set SBX as destination Airport Get more information about Shelby Airport
10137.25 miles (220.89 km) SWLemhi County Airport (SMN)Salmon, Idaho, United StatesView Lemhi County Airport on a map Set SMN as origin Airport Set SMN as destination Airport Get more information about Lemhi County Airport
11138.97 miles (223.65 km) SSEYellowstone Airport (WYS)West Yellowstone, Montana, United StatesView Yellowstone Airport on a map Set WYS as origin Airport Set WYS as destination Airport Get more information about Yellowstone Airport
12139.51 miles (224.52 km) NCut Bank Municipal AirportCut Bank Army Air Field (CTB)Cut Bank, Montana, United StatesView Cut Bank Municipal AirportCut Bank Army Air Field on a map Set CTB as origin Airport Set CTB as destination Airport Get more information about Cut Bank Municipal AirportCut Bank Army Air Field
13158.54 miles (255.14 km) NWGlacier Park International Airport (FCA)Kalispell, Montana, United StatesView Glacier Park International Airport on a map Set FCA as origin Airport Set FCA as destination Airport Get more information about Glacier Park International Airport
14163.70 miles (263.45 km) ERoundup Airport (RPX)Roundup, Montana, United StatesView Roundup Airport on a map Set RPX as origin Airport Set RPX as destination Airport Get more information about Roundup Airport
15169.14 miles (272.20 km) NEHavre City-County Airport (HVR)Havre, Montana, United StatesView Havre City-County Airport on a map Set HVR as origin Airport Set HVR as destination Airport Get more information about Havre City-County Airport

Map of Furthest Airports from Helena Regional Airport:

List of Furthest Airports from Helena Regional Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,563.08 miles (16,999.59 km) SSir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as origin Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval Airport
210,552.15 miles (16,981.99 km) SSEPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as origin Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
310,548.64 miles (16,976.36 km) SETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as origin Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
410,536.59 miles (16,956.96 km) SSESir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as origin Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
510,525.82 miles (16,939.62 km) SSERoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as origin Airport Set RUN as destination Airport Get more information about Roland Garros Airport
610,452.26 miles (16,821.24 km) SEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as origin Airport Set AMP as destination Airport Get more information about Ampanihy Airport
710,363.52 miles (16,678.43 km) SEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as origin Airport Set MNJ as destination Airport Get more information about Mananjary Airport
810,340.10 miles (16,640.74 km) SEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as origin Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
910,252.07 miles (16,499.06 km) SEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as origin Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1010,247.66 miles (16,491.97 km) SEManja Airport (MJA)Manja, Menabe, MadagascarView Manja Airport on a map Set MJA as origin Airport Set MJA as destination Airport Get more information about Manja Airport
1110,235.05 miles (16,471.68 km) SEMorombe Airport (MXM)Morombe, MadagascarView Morombe Airport on a map Set MXM as origin Airport Set MXM as destination Airport Get more information about Morombe Airport
1210,200.52 miles (16,416.11 km) SEToamasino Airport (TMM)Toamasina, MadagascarView Toamasino Airport on a map Set TMM as origin Airport Set TMM as destination Airport Get more information about Toamasino Airport
1310,189.58 miles (16,398.51 km) SEIvato International Airport (TNR)Antananarivo, MadagascarView Ivato International Airport on a map Set TNR as origin Airport Set TNR as destination Airport Get more information about Ivato International Airport
1410,174.40 miles (16,374.07 km) SEMiandrivazo Airport (ZVA)Miandrivazo, MadagascarView Miandrivazo Airport on a map Set ZVA as origin Airport Set ZVA as destination Airport Get more information about Miandrivazo Airport
1510,162.80 miles (16,355.40 km) ESEMargate Airport (MGH)Margate, KwaZulu-Natal, South AfricaView Margate Airport on a map Set MGH as origin Airport Set MGH as destination Airport Get more information about Margate Airport

Map of Nearest Airports to Lanyu Airport:

List of Nearest Airports to Lanyu Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
144.68 miles (71.90 km) NLyudao Airport (Green Island Airport) (GNI)Lyudao (Green Island), TaiwanView Lyudao Airport (Green Island Airport) on a map Set GNI as destination Airport Set GNI as destination Airport Get more information about Lyudao Airport (Green Island Airport)
251.04 miles (82.15 km) WHengchun Airport (HCN)Hengchun, TaiwanView Hengchun Airport on a map Set HCN as destination Airport Set HCN as destination Airport Get more information about Hengchun Airport
357.01 miles (91.75 km) NNWTaitung Airport (TTT)Taitung, Taiwan, Republic of ChinaView Taitung Airport on a map Set TTT as destination Airport Set TTT as destination Airport Get more information about Taitung Airport
484.23 miles (135.55 km) WNWKaohsiung International Airport (Kaohsiung Siaogang Airport) (KHH)Kaohsiung, TaiwanView Kaohsiung International Airport (Kaohsiung Siaogang Airport) on a map Set KHH as destination Airport Set KHH as destination Airport Get more information about Kaohsiung International Airport (Kaohsiung Siaogang Airport)
5105.67 miles (170.06 km) NWTainan Airport (TNN)Tainan City, Taiwan, Republic of ChinaView Tainan Airport on a map Set TNN as destination Airport Set TNN as destination Airport Get more information about Tainan Airport
6112.86 miles (181.64 km) SSEBasco Airport (BSO)Basco, Batanes, PhilippinesView Basco Airport on a map Set BSO as destination Airport Set BSO as destination Airport Get more information about Basco Airport
7121.97 miles (196.29 km) NWChiayi Airport (Shueishang Airport) (CYI)Chiayi, TaiwanView Chiayi Airport (Shueishang Airport) on a map Set CYI as destination Airport Set CYI as destination Airport Get more information about Chiayi Airport (Shueishang Airport)
8137.87 miles (221.87 km) NHualien Airport (HUN)Hualien, Taiwan, Republic of ChinaView Hualien Airport on a map Set HUN as destination Airport Set HUN as destination Airport Get more information about Hualien Airport
9157.45 miles (253.39 km) WNWQimei Airport (CMJ)Cimei, TaiwanView Qimei Airport on a map Set CMJ as destination Airport Set CMJ as destination Airport Get more information about Qimei Airport
10158.85 miles (255.64 km) NWWang-an Airport (WOT)Wang-an, Penghu (Pescadores), Republic of ChinaView Wang-an Airport on a map Set WOT as destination Airport Set WOT as destination Airport Get more information about Wang-an Airport
11160.88 miles (258.91 km) NWMagong Airport (MZG)Magong, TaiwanView Magong Airport on a map Set MZG as destination Airport Set MZG as destination Airport Get more information about Magong Airport
12164.83 miles (265.27 km) NNWTaichung Airport(Taichung Ching Chuan Kang Airport) (RMQ)Taichung, Taiwan, TaiwanView Taichung Airport(Taichung Ching Chuan Kang Airport) on a map Set RMQ as destination Airport Set RMQ as destination Airport Get more information about Taichung Airport(Taichung Ching Chuan Kang Airport)
13164.83 miles (265.27 km) NNWTaichung Airport(Taichung Ching Chuan Kang Airport) (TXG)Taichung, Taiwan, Republic of ChinaView Taichung Airport(Taichung Ching Chuan Kang Airport) on a map Set TXG as destination Airport Set TXG as destination Airport Get more information about Taichung Airport(Taichung Ching Chuan Kang Airport)
14192.03 miles (309.05 km) NNEYonaguni Airport (OGN)Yonaguni, Okinawa, JapanView Yonaguni Airport on a map Set OGN as destination Airport Set OGN as destination Airport Get more information about Yonaguni Airport
15201.49 miles (324.27 km) NEHateruma Airport (HTR)Hateruma, Okinawa, JapanView Hateruma Airport on a map Set HTR as destination Airport Set HTR as destination Airport Get more information about Hateruma Airport

Map of Furthest Airports from Lanyu Airport:

List of Furthest Airports from Lanyu Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,299.17 miles (19,793.54 km) EDr. Luis María Argaña International Airport (ESG)Mariscal Estigarribia, ParaguayView Dr. Luis María Argaña International Airport on a map Set ESG as destination Airport Set ESG as destination Airport Get more information about Dr. Luis María Argaña International Airport
212,262.67 miles (19,734.81 km) WSWDr. Augusto Roberto Fuster International Airport (PJC)Pedro Juan Caballero, ParaguayView Dr. Augusto Roberto Fuster International Airport on a map Set PJC as destination Airport Set PJC as destination Airport Get more information about Dr. Augusto Roberto Fuster International Airport
312,256.08 miles (19,724.21 km) WSWPonta Porã International Airport (PMG)Ponta Porã, Mato Grosso do Sul, BrazilView Ponta Porã International Airport on a map Set PMG as destination Airport Set PMG as destination Airport Get more information about Ponta Porã International Airport
412,221.96 miles (19,669.29 km) SSWCorumbá International Airport (CMG)Corumbá, Mato Grosso do Sul, BrazilView Corumbá International Airport on a map Set CMG as destination Airport Set CMG as destination Airport Get more information about Corumbá International Airport
512,221.60 miles (19,668.71 km) SSWPuerto Suárez International Airport (PSZ)Puerto Suárez, BoliviaView Puerto Suárez International Airport on a map Set PSZ as destination Airport Set PSZ as destination Airport Get more information about Puerto Suárez International Airport
612,209.44 miles (19,649.14 km) WFrancisco de Matos Pereira Airport (DOU)Dourados, Minas Gerais, BrazilView Francisco de Matos Pereira Airport on a map Set DOU as destination Airport Set DOU as destination Airport Get more information about Francisco de Matos Pereira Airport
712,206.93 miles (19,645.09 km) SSWSilvio Pettirossi International Airport (ASU)Asunción, ParaguayView Silvio Pettirossi International Airport on a map Set ASU as destination Airport Set ASU as destination Airport Get more information about Silvio Pettirossi International Airport
812,205.73 miles (19,643.17 km) SSWClorinda Airport (CLX)Clorinda, Formosa, ArgentinaView Clorinda Airport on a map Set CLX as destination Airport Set CLX as destination Airport Get more information about Clorinda Airport
912,169.28 miles (19,584.50 km) WSWCampo Grande International Airport (CGR)Campo Grande, Mato Grosso do Sul, BrazilView Campo Grande International Airport on a map Set CGR as destination Airport Set CGR as destination Airport Get more information about Campo Grande International Airport
1012,147.35 miles (19,549.21 km) SFormosa International Airport (FMA)Formosa, ArgentinaView Formosa International Airport on a map Set FMA as destination Airport Set FMA as destination Airport Get more information about Formosa International Airport
1112,129.79 miles (19,520.96 km) WSWGuaíra Municipal Airport (QGA)Guaíra, Paraná, BrazilView Guaíra Municipal Airport on a map Set QGA as destination Airport Set QGA as destination Airport Get more information about Guaíra Municipal Airport
1212,107.11 miles (19,484.46 km) SWGuaraní International Airport (AGT)Ciudad del Este, ParaguayView Guaraní International Airport on a map Set AGT as destination Airport Set AGT as destination Airport Get more information about Guaraní International Airport
1312,105.00 miles (19,481.06 km) EYacuiba Airport (BYC)Yacuiba, BoliviaView Yacuiba Airport on a map Set BYC as destination Airport Set BYC as destination Airport Get more information about Yacuiba Airport
1412,101.42 miles (19,475.30 km) SCarlos Miguel Jiménez Airport (PIL)Pilar, ParaguayView Carlos Miguel Jiménez Airport on a map Set PIL as destination Airport Set PIL as destination Airport Get more information about Carlos Miguel Jiménez Airport
1512,094.32 miles (19,463.88 km) ETartagal "General Enrique Mosconi" Airport (TTG)Tartagal, Salta, ArgentinaView Tartagal General Enrique Mosconi Airport on a map Set TTG as destination Airport Set TTG as destination Airport Get more information about Tartagal General Enrique Mosconi Airport