About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Blackwater Airport (BLT), Blackwater, Queensland, Australia would travel a Great Circle distance of 7,812 miles (or 12,572 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 Blackwater 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 Blackwater 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: BLT / YBTR
Airport Name: Blackwater Airport
Location: Blackwater, Queensland, Australia
GPS Coordinates: 23°36'11"S by 148°48'24"E
Operator/Owner: BHP Billiton Mitsubishi Alliance
Airport Type: Public
Elevation: 657 feet (200 meters)
# of Runways: 1
View all routes: Routes from BLT
More Information: BLT Maps & Info

Facts about Helena Regional Airport (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.
  • 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 closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.

Facts about Blackwater Airport (BLT):

  • The closest airport to Blackwater Airport (BLT) is Emerald Airport (EMD), which is located 40 miles (64 kilometers) W of BLT.
  • Blackwater Airport (BLT) currently has only 1 runway.
  • Because of Blackwater Airport's relatively low elevation of 657 feet, planes can take off or land at Blackwater 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 Blackwater Airport (BLT) is Agostinho Neto Airport (NTO), which is located 11,844 miles (19,061 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.

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 Blackwater Airport:

List of Nearest Airports to Blackwater Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
139.83 miles (64.10 km) WEmerald Airport (EMD)Emerald, Queensland, AustraliaView Emerald Airport on a map Set EMD as destination Airport Set EMD as destination Airport Get more information about Emerald Airport
255.63 miles (89.53 km) NMiddlemount Airport (MMM)Middlemount, Queensland, AustraliaView Middlemount Airport on a map Set MMM as destination Airport Set MMM as destination Airport Get more information about Middlemount Airport
373.39 miles (118.10 km) NNWDysart Airport (DYA)Dysart, Queensland, AustraliaView Dysart Airport on a map Set DYA as destination Airport Set DYA as destination Airport Get more information about Dysart Airport
494.71 miles (152.41 km) NWClermont Airport (CMQ)Clermont, Queensland, AustraliaView Clermont Airport on a map Set CMQ as destination Airport Set CMQ as destination Airport Get more information about Clermont Airport
5106.80 miles (171.88 km) ERockhampton Airport (ROK)Rockhampton, Queensland, AustraliaView Rockhampton Airport on a map Set ROK as destination Airport Set ROK as destination Airport Get more information about Rockhampton Airport
6116.43 miles (187.38 km) NNWMoranbah Airport (MOV)Moranbah, Queensland, AustraliaView Moranbah Airport on a map Set MOV as destination Airport Set MOV as destination Airport Get more information about Moranbah Airport
7140.79 miles (226.58 km) WAlpha Airport (ABH)Alpha, Queensland, AustraliaView Alpha Airport on a map Set ABH as destination Airport Set ABH as destination Airport Get more information about Alpha Airport
8153.90 miles (247.68 km) EGladstone Airport (GLT)Gladstone, Queensland, AustraliaView Gladstone Airport on a map Set GLT as destination Airport Set GLT as destination Airport Get more information about Gladstone Airport
9167.05 miles (268.83 km) SSETaroom Airport (XTO)Taroom, Queensland, AustraliaView Taroom Airport on a map Set XTO as destination Airport Set XTO as destination Airport Get more information about Taroom Airport
10169.67 miles (273.06 km) NMackay Airport (MKY)Mackay, Queensland, AustraliaView Mackay Airport on a map Set MKY as destination Airport Set MKY as destination Airport Get more information about Mackay Airport
11215.37 miles (346.60 km) NWhitsunday Coast Airport (PPP)Proserpine, Queensland, AustraliaView Whitsunday Coast Airport on a map Set PPP as destination Airport Set PPP as destination Airport Get more information about Whitsunday Coast Airport
12220.69 miles (355.16 km) WSWBlackall Airport (BKQ)Blackall, Queensland, AustraliaView Blackall Airport on a map Set BKQ as destination Airport Set BKQ as destination Airport Get more information about Blackall Airport
13221.65 miles (356.72 km) WBarcaldine Airport (BCI)Barcaldine, Queensland, AustraliaView Barcaldine Airport on a map Set BCI as destination Airport Set BCI as destination Airport Get more information about Barcaldine Airport
14224.40 miles (361.13 km) NGreat Barrier Reef Airport (HTI)Hamilton Island, Queensland, AustraliaView Great Barrier Reef Airport on a map Set HTI as destination Airport Set HTI as destination Airport Get more information about Great Barrier Reef Airport
15224.87 miles (361.90 km) SEGayndah Airport (GAH)Gayndah, Queensland, AustraliaView Gayndah Airport on a map Set GAH as destination Airport Set GAH as destination Airport Get more information about Gayndah Airport

Map of Furthest Airports from Blackwater Airport:

List of Furthest Airports from Blackwater Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,843.97 miles (19,060.97 km) NWAgostinho Neto Airport (NTO)Ponta do Sol, Santo Antão, Cape VerdeView Agostinho Neto Airport on a map Set NTO as destination Airport Set NTO as destination Airport Get more information about Agostinho Neto Airport
211,822.96 miles (19,027.16 km) NWCesária Évora International Airport (VXE)São Vicente, Cape VerdeView Cesária Évora International Airport on a map Set VXE as destination Airport Set VXE as destination Airport Get more information about Cesária Évora International Airport
311,776.84 miles (18,952.94 km) NWPreguiça Airport (SNE)São Nicolau, Cape VerdeView Preguiça Airport on a map Set SNE as destination Airport Set SNE as destination Airport Get more information about Preguiça Airport
411,722.59 miles (18,865.64 km) NWAmílcar Cabral International Airport (SID)Sal Island, Cape VerdeView Amílcar Cabral International Airport on a map Set SID as destination Airport Set SID as destination Airport Get more information about Amílcar Cabral International Airport
511,696.02 miles (18,822.88 km) NWMosteiros Airport (MTI)Mosteiros, Cape VerdeView Mosteiros Airport on a map Set MTI as destination Airport Set MTI as destination Airport Get more information about Mosteiros Airport
611,692.32 miles (18,816.92 km) NWSão Filipe Airport (SFL)Fogo, Cape VerdeView São Filipe Airport on a map Set SFL as destination Airport Set SFL as destination Airport Get more information about São Filipe Airport
711,690.76 miles (18,814.41 km) NWAristides Pereira International Airport (BVC)Boa Vista, Cape VerdeView Aristides Pereira International Airport on a map Set BVC as destination Airport Set BVC as destination Airport Get more information about Aristides Pereira International Airport
811,655.51 miles (18,757.67 km) NWMaio Airport (MMO)Maio, Cape VerdeView Maio Airport on a map Set MMO as destination Airport Set MMO as destination Airport Get more information about Maio Airport
911,655.09 miles (18,757.01 km) NWPraia International Airport (RAI)Praia, Cape VerdeView Praia International Airport on a map Set RAI as destination Airport Set RAI as destination Airport Get more information about Praia International Airport
1011,534.54 miles (18,563.00 km) WNWLa Palma Airport (SPC)La Palma, Canary Islands, SpainView La Palma Airport on a map Set SPC as destination Airport Set SPC as destination Airport Get more information about La Palma Airport
1111,515.89 miles (18,532.98 km) WNWLa Gomera Airport (GMZ)Alajeró / San Sebastián, Canary Islands, SpainView La Gomera Airport on a map Set GMZ as destination Airport Set GMZ as destination Airport Get more information about La Gomera Airport
1211,514.16 miles (18,530.20 km) WLa Güera Airport (ZLG)La Güera, Western SaharaView La Güera Airport on a map Set ZLG as destination Airport Set ZLG as destination Airport Get more information about La Güera Airport
1311,513.04 miles (18,528.39 km) WNouadhibou International Airport (NDB)Nouadhibou, MauritaniaView Nouadhibou International Airport on a map Set NDB as destination Airport Set NDB as destination Airport Get more information about Nouadhibou International Airport
1411,477.92 miles (18,471.88 km) WNWTenerife-South Airport (TFS)Tenerife, Canary Islands, SpainView Tenerife-South Airport on a map Set TFS as destination Airport Set TFS as destination Airport Get more information about Tenerife-South Airport
1511,471.42 miles (18,461.42 km) WDakhla Airport (VIL)Dakhla, Western SaharaView Dakhla Airport on a map Set VIL as destination Airport Set VIL as destination Airport Get more information about Dakhla Airport