About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Unalaska Airport (DUT), Unalaska, Alaska, United States would travel a Great Circle distance of 2,400 miles (or 3,862 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 relatively short distance between Helena Regional Airport and Unalaska Airport, the route shown on this map most likely still appears to be a straight line.

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: DUT / PADU
Airport Names:
  1. Unalaska Airport
  2. Dutch Harbor Airport
  3. Tom Madsen Airport
Location: Unalaska, Alaska, United States
GPS Coordinates: 53°53'56"N by 166°32'41"W
Area Served: Unalaska, Alaska
Operator/Owner: State of Alaska DOT&PF - Central Region
Airport Type: Public
Elevation: 22 feet (7 meters)
# of Runways: 1
View all routes: Routes from DUT
More Information: DUT Maps & Info

Facts about Helena Regional Airport (HLN):

  • In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
  • 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.
  • The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
  • 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.

Facts about Unalaska Airport (DUT):

  • Unalaska Airport (DUT) currently has only 1 runway.
  • In addition to being known as "Unalaska Airport", other names for DUT include "Dutch Harbor Airport" and "Tom Madsen Airport".
  • The closest airport to Unalaska Airport (DUT) is Akutan Seaplane Base (KQA), which is located 35 miles (56 kilometers) ENE of DUT.
  • Unalaska Airport has one runway designated 12/30 with an asphalt surface measuring 4,100 by 100 feet.
  • Because of Unalaska Airport's relatively low elevation of 22 feet, planes can take off or land at Unalaska 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 furthest airport from Unalaska Airport (DUT) is Cape Town International Airport (CPT), which is located 11,037 miles (17,763 kilometers) away in Cape Town, South Africa.
  • Scheduled commercial airline service is provided by PenAir, a code share partner of Alaska Airlines.

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 Unalaska Airport:

List of Nearest Airports to Unalaska Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
135.10 miles (56.49 km) ENEAkutan Seaplane Base (KQA)Akutan, Alaska, United StatesView Akutan Seaplane Base on a map Set KQA as destination Airport Set KQA as destination Airport Get more information about Akutan Seaplane Base
2115.63 miles (186.09 km) SWNikolski Air Station (IKO)Nikolski, Alaska, United StatesView Nikolski Air Station on a map Set IKO as destination Airport Set IKO as destination Airport Get more information about Nikolski Air Station
3142.15 miles (228.78 km) ENEFalse Pass Airport (KFP)False Pass, Alaska, United StatesView False Pass Airport on a map Set KFP as destination Airport Set KFP as destination Airport Get more information about False Pass Airport
4160.46 miles (258.23 km) ENEPauloff Harbor Seaplane Base (KPH)Sanak Island, Alaska, United StatesView Pauloff Harbor Seaplane Base on a map Set KPH as destination Airport Set KPH as destination Airport Get more information about Pauloff Harbor Seaplane Base
5177.69 miles (285.96 km) ENECold Bay Airport (CDB)Cold Bay, Alaska, United StatesView Cold Bay Airport on a map Set CDB as destination Airport Set CDB as destination Airport Get more information about Cold Bay Airport
6191.11 miles (307.56 km) ENEKing Cove Airport (KVC)King Cove, Alaska, United StatesView King Cove Airport on a map Set KVC as destination Airport Set KVC as destination Airport Get more information about King Cove Airport
7222.07 miles (357.39 km) NNWSt. George Airport (STG)St. George, Alaska, United StatesView St. George Airport on a map Set STG as destination Airport Set STG as destination Airport Get more information about St. George Airport
8258.48 miles (415.98 km) NENelson Lagoon Airport (NLG)Nelson Lagoon, Alaska, United StatesView Nelson Lagoon Airport on a map Set NLG as destination Airport Set NLG as destination Airport Get more information about Nelson Lagoon Airport
9260.01 miles (418.45 km) ENESand Point Airport (SDP)Sand Point, Alaska, United StatesView Sand Point Airport on a map Set SDP as destination Airport Set SDP as destination Airport Get more information about Sand Point Airport
10267.59 miles (430.64 km) NNWSt. Paul Island Airport (SNP)St. Paul Island, Alaska, United StatesView St. Paul Island Airport on a map Set SNP as destination Airport Set SNP as destination Airport Get more information about St. Paul Island Airport
11278.38 miles (448.00 km) NEPort Moller Airport (PML)Cold Bay, Alaska, United StatesView Port Moller Airport on a map Set PML as destination Airport Set PML as destination Airport Get more information about Port Moller Airport
12324.27 miles (521.87 km) ENEPerryville Airport (KPV)Perryville, Alaska, United StatesView Perryville Airport on a map Set KPV as destination Airport Set KPV as destination Airport Get more information about Perryville Airport
13338.39 miles (544.58 km) WSWAtka Airport (AKB)Atka, Alaska, United StatesView Atka Airport on a map Set AKB as destination Airport Set AKB as destination Airport Get more information about Atka Airport
14347.50 miles (559.25 km) ENEChignik Lake Airport (KCQ)Chignik Lake, Alaska, United StatesView Chignik Lake Airport on a map Set KCQ as destination Airport Set KCQ as destination Airport Get more information about Chignik Lake Airport
15355.74 miles (572.51 km) ENEChignik Fisheries Airport (KCG)Chignik, Alaska, United States.View Chignik Fisheries Airport on a map Set KCG as destination Airport Set KCG as destination Airport Get more information about Chignik Fisheries Airport

Map of Furthest Airports from Unalaska Airport:

List of Furthest Airports from Unalaska Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,037.14 miles (17,762.52 km) SSWCape 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
210,995.13 miles (17,694.91 km) SSWGeorge 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
310,938.74 miles (17,604.15 km) SSWPort 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
410,885.53 miles (17,518.51 km) SSWPort 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
510,832.30 miles (17,432.85 km) SSWEast 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
610,753.73 miles (17,306.41 km) SKleinsee Airport (KLZ)Kleinzee, South AfricaView Kleinsee Airport on a map Set KLZ as destination Airport Set KLZ as destination Airport Get more information about Kleinsee Airport
710,718.30 miles (17,249.39 km) SSWMthatha 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
810,714.69 miles (17,243.58 km) SAggeneys Airport (AGZ)Aggeneys, South AfricaView Aggeneys Airport on a map Set AGZ as destination Airport Set AGZ as destination Airport Get more information about Aggeneys Airport
910,714.69 miles (17,243.58 km) SWild Coast Sun Airport (MZF)Mzamba, South AfricaView Wild Coast Sun Airport on a map Set MZF as destination Airport Set MZF as destination Airport Get more information about Wild Coast Sun Airport
1010,680.07 miles (17,187.86 km) SAlexander Bay Airport (ALJ)Alexander Bay, South AfricaView Alexander Bay Airport on a map Set ALJ as destination Airport Set ALJ as destination Airport Get more information about Alexander Bay Airport
1110,637.02 miles (17,118.58 km) SWMargate 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
1210,634.24 miles (17,114.11 km) SSWMafeteng 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
1310,631.42 miles (17,109.57 km) SSWUpington Airport (UTN)Upington, South AfricaView Upington Airport on a map Set UTN as destination Airport Set UTN as destination Airport Get more information about Upington Airport
1410,629.75 miles (17,106.88 km) SKarasburg Airport (KAS)Karasburg, NamibiaView Karasburg Airport on a map Set KAS as destination Airport Set KAS as destination Airport Get more information about Karasburg Airport
1510,620.66 miles (17,092.25 km) SSWSemonkong 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