About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Denis Island Airport (DEI), Denis Island, Seychelles would travel a Great Circle distance of 9,388 miles (or 15,108 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 Denis Island 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 Denis Island 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: DEI / FSSD
Airport Name: Denis Island Airport
Location: Denis Island, Seychelles
GPS Coordinates: 3°48'1"S by 55°39'52"E
Operator/Owner: Denis Island
Airport Type: Private
Elevation: 10 feet (3 meters)
# of Runways: 1
View all routes: Routes from DEI
More Information: DEI Maps & Info

Facts about Helena Regional Airport (HLN):

  • Helena Regional Airport (HLN) has 3 runways.
  • The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
  • In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
  • Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
  • 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.
  • The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.

Facts about Denis Island Airport (DEI):

  • Because of Denis Island Airport's relatively low elevation of 10 feet, planes can take off or land at Denis Island 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.
  • Denis Island Airport (DEI) currently has only 1 runway.
  • The closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of DEI.
  • The furthest airport from Denis Island Airport (DEI) is Atuona Airport (AUQ), which is located 11,058 miles (17,797 kilometers) away in Atuona, Marquesas Islands, French Polynesia.

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 Denis Island Airport:

List of Nearest Airports to Denis Island Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
131.89 miles (51.32 km) WBird Island Airport (BDI)Bird Island, SeychellesView Bird Island Airport on a map Set BDI as destination Airport Set BDI as destination Airport Get more information about Bird Island Airport
235.90 miles (57.78 km) SPraslin Island Airport (PRI)Praslin Island, SeychellesView Praslin Island Airport on a map Set PRI as destination Airport Set PRI as destination Airport Get more information about Praslin Island Airport
357.52 miles (92.56 km) SSEFrégate Island Airport (FRK)Frégate Island, SeychellesView Frégate Island Airport on a map Set FRK as destination Airport Set FRK as destination Airport Get more information about Frégate Island Airport
461.18 miles (98.46 km) SSeychelles International Airport (SEZ)Mahé, SeychellesView Seychelles International Airport on a map Set SEZ as destination Airport Set SEZ as destination Airport Get more information about Seychelles International Airport
5190.69 miles (306.89 km) SWDesroches Island Airport (DES)Desroches Island, SeychellesView Desroches Island Airport on a map Set DES as destination Airport Set DES as destination Airport Get more information about Desroches Island Airport
6733.87 miles (1,181.05 km) SWArrachart Airport (DIE)Antsiranana, MadagascarView Arrachart Airport on a map Set DIE as destination Airport Set DIE as destination Airport Get more information about Arrachart Airport
7792.72 miles (1,275.76 km) SWAmbilobe Airport (AMB)Ambilobe, MadagascarView Ambilobe Airport on a map Set AMB as destination Airport Set AMB as destination Airport Get more information about Ambilobe Airport
8801.60 miles (1,290.05 km) NWObbia Airport (CMO)Obbia, SomaliaView Obbia Airport on a map Set CMO as destination Airport Set CMO as destination Airport Get more information about Obbia Airport
9820.46 miles (1,320.40 km) WNWAden Adde International Airport (MGQ)Mogadishu, SomaliaView Aden Adde International Airport on a map Set MGQ as destination Airport Set MGQ as destination Airport Get more information about Aden Adde International Airport
10838.87 miles (1,350.02 km) SWAmbanja Airport (IVA)Ambanja, MadagascarView Ambanja Airport on a map Set IVA as destination Airport Set IVA as destination Airport Get more information about Ambanja Airport
11854.98 miles (1,375.95 km) SSWAntsirabato Airport (ANM)Antalaha, MadagascarView Antsirabato Airport on a map Set ANM as destination Airport Set ANM as destination Airport Get more information about Antsirabato Airport
12921.55 miles (1,483.09 km) SWAnalalava Airport (HVA)Analalava, MadagascarView Analalava Airport on a map Set HVA as destination Airport Set HVA as destination Airport Get more information about Analalava Airport
13924.73 miles (1,488.21 km) NWAbdullahi Yusuf International Airport (GLK)Galcaio, SomaliaView Abdullahi Yusuf International Airport on a map Set GLK as destination Airport Set GLK as destination Airport Get more information about Abdullahi Yusuf International Airport
14942.40 miles (1,516.64 km) WNWKismayo Airport (KMU)Kisimayu, SomaliaView Kismayo Airport on a map Set KMU as destination Airport Set KMU as destination Airport Get more information about Kismayo Airport
15943.34 miles (1,518.15 km) SWDzaoudzi Pamandzi International Airport (DZA)Dzaoudzi, MayotteView Dzaoudzi Pamandzi International Airport on a map Set DZA as destination Airport Set DZA as destination Airport Get more information about Dzaoudzi Pamandzi International Airport

Map of Furthest Airports from Denis Island Airport:

List of Furthest Airports from Denis Island Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,058.49 miles (17,796.87 km) SEAtuona Airport (AUQ)Atuona, Marquesas Islands, French PolynesiaView Atuona Airport on a map Set AUQ as destination Airport Set AUQ as destination Airport Get more information about Atuona Airport
210,781.23 miles (17,350.67 km) NWLos Cabos International Airport (SJD)Los Cabos, MexicoView Los Cabos International Airport on a map Set SJD as destination Airport Set SJD as destination Airport Get more information about Los Cabos International Airport
310,754.90 miles (17,308.29 km) NNWManuel Márquez de León International Airport (LAP)La Paz, Baja California Sur, MexicoView Manuel Márquez de León International Airport on a map Set LAP as destination Airport Set LAP as destination Airport Get more information about Manuel Márquez de León International Airport
410,742.47 miles (17,288.28 km) NNWCiudad Constitución Airport (CUA)Ciudad Constitución, Baja California Sur, MexicoView Ciudad Constitución Airport on a map Set CUA as destination Airport Set CUA as destination Airport Get more information about Ciudad Constitución Airport
510,732.53 miles (17,272.29 km) NWPlaya de Oro International Airport (ZLO)Manzanillo, Colima, MexicoView Playa de Oro International Airport on a map Set ZLO as destination Airport Set ZLO as destination Airport Get more information about Playa de Oro International Airport
610,703.08 miles (17,224.90 km) NWLic. Gustavo Díaz Ordaz International Airport (PVR)Puerto Vallarta, Jalisco, MexicoView Lic. Gustavo Díaz Ordaz International Airport on a map Set PVR as destination Airport Set PVR as destination Airport Get more information about Lic. Gustavo Díaz Ordaz International Airport
710,682.85 miles (17,192.33 km) SSEPukarua Airport (PUK)Pukarua, Tuamotus, French PolynesiaView Pukarua Airport on a map Set PUK as destination Airport Set PUK as destination Airport Get more information about Pukarua Airport
810,678.75 miles (17,185.74 km) NNWLoreto International Airport (LTO)Loreto, Baja California Sur, MexicoView Loreto International Airport on a map Set LTO as destination Airport Set LTO as destination Airport Get more information about Loreto International Airport
910,675.03 miles (17,179.75 km) NWLicenciado Miguel de la Madrid Airport (CLQ)Colima, Colima, MexicoView Licenciado Miguel de la Madrid Airport on a map Set CLQ as destination Airport Set CLQ as destination Airport Get more information about Licenciado Miguel de la Madrid Airport
1010,671.03 miles (17,173.31 km) SEFangatau Airport (FGU)Fangatau, French PolynesiaView Fangatau Airport on a map Set FGU as destination Airport Set FGU as destination Airport Get more information about Fangatau Airport
1110,649.92 miles (17,139.34 km) NWAmado Nervo International Airport (TPQ)Tepic, Nayarit, MexicoView Amado Nervo International Airport on a map Set TPQ as destination Airport Set TPQ as destination Airport Get more information about Amado Nervo International Airport
1210,647.88 miles (17,136.05 km) NWLázaro Cárdenas Airport (LZC)Lázaro Cárdenas, Michoacán, MexicoView Lázaro Cárdenas Airport on a map Set LZC as destination Airport Set LZC as destination Airport Get more information about Lázaro Cárdenas Airport
1310,635.05 miles (17,115.42 km) NWGeneral Rafael Buelna International Airport (MZT)Mazatlán, Sinaloa, MexicoView General Rafael Buelna International Airport on a map Set MZT as destination Airport Set MZT as destination Airport Get more information about General Rafael Buelna International Airport
1410,630.62 miles (17,108.28 km) NNWGuerrero Negro Airport (GUB)Guerrero Negro, Baja California Sur, MexicoView Guerrero Negro Airport on a map Set GUB as destination Airport Set GUB as destination Airport Get more information about Guerrero Negro Airport
1510,618.25 miles (17,088.37 km) WNWIxtapa-Zihuatanejo International Airport (ZIH)Zihuatanejo, Guerrero, MexicoView Ixtapa-Zihuatanejo International Airport on a map Set ZIH as destination Airport Set ZIH as destination Airport Get more information about Ixtapa-Zihuatanejo International Airport