About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 2,276 miles (or 3,663 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 Florida Keys Marathon 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: MTH / KMTH
Airport Name: Florida Keys Marathon Airport
Location: Marathon, Florida, United States
GPS Coordinates: 24°43'33"N by 81°3'5"W
Operator/Owner: Monroe County
Airport Type: Public
Elevation: 7 feet (2 meters)
# of Runways: 1
View all routes: Routes from MTH
More Information: MTH 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".
  • 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.
  • Helena Regional Airport (HLN) has 3 runways.

Facts about Florida Keys Marathon Airport (MTH):

  • The furthest airport from Florida Keys Marathon Airport (MTH) is Cocos (Keeling) Island Airport (CCK), which is located 11,560 miles (18,603 kilometers) away in Cocos Islands, Australia.
  • However on December 1, 2006, the TSA bowed to the effective lobbying efforts of local government, congressional and business officials when it announced that screeners would be provided at the airport no later than February 15, 2007, even if it meant using a contractor.
  • Marathon Airport was originally constructed by the United States Navy in the early 1940s as Outlying Field Marathon, an auxiliary airfield to Naval Air Station Key West.
  • The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
  • Florida Keys Marathon Airport (MTH) currently has only 1 runway.
  • Because of Florida Keys Marathon Airport's relatively low elevation of 7 feet, planes can take off or land at Florida Keys Marathon 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 Florida Keys Marathon Airport:

List of Nearest Airports to Florida Keys Marathon Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
141.36 miles (66.56 km) WSWNAS Key West (NQX)Boca Chica Key, Florida, United StatesView NAS Key West on a map Set NQX as destination Airport Set NQX as destination Airport Get more information about NAS Key West
245.99 miles (74.02 km) WSWKey West International Airport (EYW)Key West, Florida, United StatesView Key West International Airport on a map Set EYW as destination Airport Set EYW as destination Airport Get more information about Key West International Airport
363.47 miles (102.14 km) NEOcean Reef Club Airport (OCA)Key Largo, Florida, United StatesView Ocean Reef Club Airport on a map Set OCA as destination Airport Set OCA as destination Airport Get more information about Ocean Reef Club Airport
467.22 miles (108.19 km) NEHomestead Air Reserve Base (HST)Homestead, Florida, United StatesView Homestead Air Reserve Base on a map Set HST as destination Airport Set HST as destination Airport Get more information about Homestead Air Reserve Base
574.51 miles (119.91 km) NNEKendall-Tamiami Executive Airport (TMB)Miami, Florida, United StatesView Kendall-Tamiami Executive Airport on a map Set TMB as destination Airport Set TMB as destination Airport Get more information about Kendall-Tamiami Executive Airport
679.05 miles (127.22 km) NDade-Collier Training and Transition Airport (TNT)Miami, Florida, United StatesView Dade-Collier Training and Transition Airport on a map Set TNT as destination Airport Set TNT as destination Airport Get more information about Dade-Collier Training and Transition Airport
787.73 miles (141.19 km) NNEMiami International Airport (MIA)Miami, Florida, United StatesView Miami International Airport on a map Set MIA as destination Airport Set MIA as destination Airport Get more information about Miami International Airport
891.20 miles (146.77 km) NEMiami Seaplane Base (MPB)Watson Island, Miami-Dade County, Florida, United StatesView Miami Seaplane Base on a map Set MPB as destination Airport Set MPB as destination Airport Get more information about Miami Seaplane Base
994.84 miles (152.62 km) NNEOpa-locka Executive Airport (OPF)Miami, Florida, United StatesView Opa-locka Executive Airport on a map Set OPF as destination Airport Set OPF as destination Airport Get more information about Opa-locka Executive Airport
1095.86 miles (154.28 km) NNWMarco Island Airport (MRK)Marco Island, Florida, United StatesView Marco Island Airport on a map Set MRK as destination Airport Set MRK as destination Airport Get more information about Marco Island Airport
11101.59 miles (163.50 km) NNENorth Perry Airport (HWO)Hollywood, Florida, United StatesView North Perry Airport on a map Set HWO as destination Airport Set HWO as destination Airport Get more information about North Perry Airport
12108.42 miles (174.48 km) NNWNaples Municipal Airport (APF)Naples, Florida, United StatesView Naples Municipal Airport on a map Set APF as destination Airport Set APF as destination Airport Get more information about Naples Municipal Airport
13108.62 miles (174.81 km) NNEFort Lauderdale–Hollywood International Airport (FLL)Fort Lauderdale / Hollywood, Florida, United StatesView Fort Lauderdale–Hollywood International Airport on a map Set FLL as destination Airport Set FLL as destination Airport Get more information about Fort Lauderdale–Hollywood International Airport
14111.85 miles (180.00 km) SKawama Airport (VRO)Varadero, Matanzas Province, CubaView Kawama Airport on a map Set VRO as destination Airport Set VRO as destination Airport Get more information about Kawama Airport
15115.54 miles (185.94 km) NNEFort Lauderdale Executive Airport (FXE)Fort Lauderdale, Florida, United StatesView Fort Lauderdale Executive Airport on a map Set FXE as destination Airport Set FXE as destination Airport Get more information about Fort Lauderdale Executive Airport

Map of Furthest Airports from Florida Keys Marathon Airport:

List of Furthest Airports from Florida Keys Marathon Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,559.55 miles (18,603.24 km) SCocos (Keeling) Island Airport (CCK)Cocos Islands, AustraliaView Cocos (Keeling) Island Airport on a map Set CCK as destination Airport Set CCK as destination Airport Get more information about Cocos (Keeling) Island Airport
211,520.04 miles (18,539.67 km) WShark Bay Airport (MJK)Monkey Mia, Western Australia, AustraliaView Shark Bay Airport on a map Set MJK as destination Airport Set MJK as destination Airport Get more information about Shark Bay Airport
311,513.73 miles (18,529.50 km) WCarnarvon Airport (CVQ)Carnarvon, Western Australia, AustraliaView Carnarvon Airport on a map Set CVQ as destination Airport Set CVQ as destination Airport Get more information about Carnarvon Airport
411,466.50 miles (18,453.50 km) WSWKalbarri 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
511,462.60 miles (18,447.22 km) WRAAF Learmonth (LEA)Exmouth, Western Australia, AustraliaView RAAF Learmonth on a map Set LEA as destination Airport Set LEA as destination Airport Get more information about RAAF Learmonth
611,425.68 miles (18,387.81 km) WSWGeraldton 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
711,381.92 miles (18,317.38 km) WSWMullewa 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
811,378.58 miles (18,312.00 km) WSWJurien 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
911,356.02 miles (18,275.70 km) WBarrow Island Airport (BWB)Barrow Island, Western Australia, AustraliaView Barrow Island Airport on a map Set BWB as destination Airport Set BWB as destination Airport Get more information about Barrow Island Airport
1011,355.74 miles (18,275.25 km) SSWChristmas Island Airport (XCH)Christmas Island, AustraliaView Christmas Island Airport on a map Set XCH as destination Airport Set XCH as destination Airport Get more information about Christmas Island Airport
1111,342.09 miles (18,253.27 km) WSWMorawa 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
1211,311.49 miles (18,204.03 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
1311,290.61 miles (18,170.43 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
1411,289.97 miles (18,169.40 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
1511,276.84 miles (18,148.28 km) SWMargaret 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