About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and St. Clair County International Airport (PHN), Port Huron, Michigan, United States would travel a Great Circle distance of 1,459 miles (or 2,347 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 St. Clair County International 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: PHN / KPHN
Airport Name: St. Clair County International Airport
Location: Port Huron, Michigan, United States
GPS Coordinates: 42°54'38"N by 82°31'44"W
Area Served: Port Huron, Michigan
Operator/Owner: St. Clair County
Airport Type: Public
Elevation: 650 feet (198 meters)
# of Runways: 2
View all routes: Routes from PHN
More Information: PHN Maps & Info

Facts about Helena Regional Airport (HLN):

  • Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
  • Helena Regional Airport (HLN) has 3 runways.
  • 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.
  • 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 St. Clair County International Airport (PHN):

  • Because of St. Clair County International Airport's relatively low elevation of 650 feet, planes can take off or land at St. Clair County International 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.
  • St. Clair County International Airport (PHN) has 2 runways.
  • The closest airport to St. Clair County International Airport (PHN) is Sarnia (Chris Hadfield) Airport (YZR), which is located only 13 miles (20 kilometers) ENE of PHN.
  • The furthest airport from St. Clair County International Airport (PHN) is Margaret River Airport (MGV), which is located 11,302 miles (18,189 kilometers) away in Margaret River, Western Australia, Australia.

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 St. Clair County International Airport:

List of Nearest Airports to St. Clair County International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112.68 miles (20.41 km) ENESarnia (Chris Hadfield) Airport (YZR)Sarnia, Ontario, CanadaView Sarnia (Chris Hadfield) Airport on a map Set YZR as destination Airport Set YZR as destination Airport Get more information about Sarnia (Chris Hadfield) Airport
226.05 miles (41.93 km) SWSelfridge Air National Guard Base (MTC)Mount Clemens, Michigan, United StatesView Selfridge Air National Guard Base on a map Set MTC as destination Airport Set MTC as destination Airport Get more information about Selfridge Air National Guard Base
342.41 miles (68.26 km) SWColeman A. Young International Airport (DET)Detroit, Michigan, United StatesView Coleman A. Young International Airport on a map Set DET as destination Airport Set DET as destination Airport Get more information about Coleman A. Young International Airport
447.57 miles (76.56 km) SSEChatham-Kent Airport (XCM)Chatham-Kent, Ontario, CanadaView Chatham-Kent Airport on a map Set XCM as destination Airport Set XCM as destination Airport Get more information about Chatham-Kent Airport
548.27 miles (77.68 km) WSWOakland County International Airport (PTK)Waterford, Michigan, United StatesView Oakland County International Airport on a map Set PTK as destination Airport Set PTK as destination Airport Get more information about Oakland County International Airport
648.92 miles (78.74 km) SSWWindsor International Airport (YQG)Windsor, Ontario, CanadaView Windsor International Airport on a map Set YQG as destination Airport Set YQG as destination Airport Get more information about Windsor International Airport
757.73 miles (92.90 km) ENECentralia/James T. Field Memorial Aerodrome (YCE)Centralia, Ontario, CanadaView Centralia/James T. Field Memorial Aerodrome on a map Set YCE as destination Airport Set YCE as destination Airport Get more information about Centralia/James T. Field Memorial Aerodrome
861.56 miles (99.07 km) WBishop International Airport (FNT)Flint, Michigan, United StatesView Bishop International Airport on a map Set FNT as destination Airport Set FNT as destination Airport Get more information about Bishop International Airport
963.94 miles (102.90 km) SWDetroit Metropolitan Wayne County Airport (DTW)Romulus (near Detroit), Michigan, United StatesView Detroit Metropolitan Wayne County Airport on a map Set DTW as destination Airport Set DTW as destination Airport Get more information about Detroit Metropolitan Wayne County Airport
1068.98 miles (111.01 km) SWWillow Run Airport (YIP) (YIP)Detroit, Michigan, United StatesView Willow Run Airport (YIP) on a map Set YIP as destination Airport Set YIP as destination Airport Get more information about Willow Run Airport (YIP)
1170.16 miles (112.92 km) ELondon international Airport (YXU)London, Ontario, CanadaView London international Airport on a map Set YXU as destination Airport Set YXU as destination Airport Get more information about London international Airport
1272.55 miles (116.76 km) ESt. Thomas Municipal Airport (YQS)St. Thomas, Ontario, CanadaView St. Thomas Municipal Airport on a map Set YQS as destination Airport Set YQS as destination Airport Get more information about St. Thomas Municipal Airport
1378.05 miles (125.60 km) SWAnn Arbor Municipal Airport (ARB)Ann Arbor, Michigan, United StatesView Ann Arbor Municipal Airport on a map Set ARB as destination Airport Set ARB as destination Airport Get more information about Ann Arbor Municipal Airport
1489.12 miles (143.43 km) WNWMBS International Airport (MBS)Midland/Bay City/Saginaw, Michigan, United StatesView MBS International Airport on a map Set MBS as destination Airport Set MBS as destination Airport Get more information about MBS International Airport
15100.44 miles (161.64 km) NNEKincardine Airport (YKD)Kincardine, Ontario, CanadaView Kincardine Airport on a map Set YKD as destination Airport Set YKD as destination Airport Get more information about Kincardine Airport

Map of Furthest Airports from St. Clair County International Airport:

List of Furthest Airports from St. Clair County International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,302.10 miles (18,188.92 km) WSWMargaret River Airport (MGV)Margaret River, Western Australia, AustraliaView Margaret River Airport on a map Set MGV as destination Airport Set MGV as destination Airport Get more information about Margaret River Airport
211,278.17 miles (18,150.40 km) WSWBusselton Regional Airport (BQB)Busselton, Western Australia, AustraliaView Busselton Regional Airport on a map Set BQB as destination Airport Set BQB as destination Airport Get more information about Busselton Regional Airport
311,268.77 miles (18,135.29 km) WSWManjimup Airport (MJP)Manjimup, Western Australia, AustraliaView Manjimup Airport on a map Set MJP as destination Airport Set MJP as destination Airport Get more information about Manjimup Airport
411,252.36 miles (18,108.87 km) WSWBunbury Airport (BUY)Bunbury, Western Australia, AustraliaView Bunbury Airport on a map Set BUY as destination Airport Set BUY as destination Airport Get more information about Bunbury Airport
511,217.21 miles (18,052.31 km) WSWAlbany Airport (ALH)Albany, Western Australia, AustraliaView Albany Airport on a map Set ALH as destination Airport Set ALH as destination Airport Get more information about Albany Airport
611,196.46 miles (18,018.91 km) WSWRottnest Airport (RTS)Rottnest Island, Western Australia, AustraliaView Rottnest Airport on a map Set RTS as destination Airport Set RTS as destination Airport Get more information about Rottnest Airport
711,185.87 miles (18,001.87 km) WSWJandakot Airport (JAD)Jandakot, Western Australia, AustraliaView Jandakot Airport on a map Set JAD as destination Airport Set JAD as destination Airport Get more information about Jandakot Airport
811,175.67 miles (17,985.45 km) WSWKatanning Airport (KNI)Katanning, Western Australia, AustraliaView Katanning Airport on a map Set KNI as destination Airport Set KNI as destination Airport Get more information about Katanning Airport
911,174.86 miles (17,984.15 km) WSWPerth Airport (PER)Perth, Western Australia, AustraliaView Perth Airport on a map Set PER as destination Airport Set PER as destination Airport Get more information about Perth Airport
1011,134.08 miles (17,918.52 km) SWJurien Bay Airport (JUR)Jurien Bay, Western Australia, AustraliaView Jurien Bay Airport on a map Set JUR as destination Airport Set JUR as destination Airport Get more information about Jurien Bay Airport
1111,069.96 miles (17,815.33 km) SWGeraldton Airport (GET)Geraldton, Western Australia, AustraliaView Geraldton Airport on a map Set GET as destination Airport Set GET as destination Airport Get more information about Geraldton Airport
1211,038.81 miles (17,765.19 km) SWMorawa Airport (MWB)Morawa, Western Australia, AustraliaView Morawa Airport on a map Set MWB as destination Airport Set MWB as destination Airport Get more information about Morawa Airport
1311,027.34 miles (17,746.73 km) SWKalbarri Airport (KAX)Kalbarri, Western Australia, AustraliaView Kalbarri Airport on a map Set KAX as destination Airport Set KAX as destination Airport Get more information about Kalbarri Airport
1411,021.26 miles (17,736.96 km) SWMullewa Airport (MXU)Mullewa, Western Australia, AustraliaView Mullewa Airport on a map Set MXU as destination Airport Set MXU as destination Airport Get more information about Mullewa Airport
1510,977.70 miles (17,666.84 km) WSWEsperance Airport (EPR)Esperance, AustraliaView Esperance Airport on a map Set EPR as destination Airport Set EPR as destination Airport Get more information about Esperance Airport