About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Roman Tmetuchl International Airport (ROR), Koror, Palau would travel a Great Circle distance of 6,928 miles (or 11,149 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 Roman Tmetuchl International 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 Roman Tmetuchl International 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: ROR / PTRO
Airport Name: Roman Tmetuchl International Airport
Location: Koror, Palau
GPS Coordinates: 7°22'1"N by 134°32'39"E
Operator/Owner: Republic of Palau
Airport Type: Public
Elevation: 176 feet (54 meters)
# of Runways: 1
View all routes: Routes from ROR
More Information: ROR Maps & Info

Facts about Helena Regional Airport (HLN):

  • 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.
  • 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.
  • Helena Regional Airport (HLN) has 3 runways.

Facts about Roman Tmetuchl International Airport (ROR):

  • The furthest airport from Roman Tmetuchl International Airport (ROR) is Imperatriz-Prefeito Renato Moreira Airport (IMP), which is nearly antipodal to Roman Tmetuchl International Airport (meaning Roman Tmetuchl International Airport is almost on the exact opposite side of the Earth from Imperatriz-Prefeito Renato Moreira Airport), and is located 12,250 miles (19,714 kilometers) away in Imperatriz, Maranhão, Brazil.
  • Roman Tmetuchl International Airport (ROR) currently has only 1 runway.
  • The closest airport to Roman Tmetuchl International Airport (ROR) is Yap International Airport (YAP), which is located 283 miles (456 kilometers) ENE of ROR.
  • Because of Roman Tmetuchl International Airport's relatively low elevation of 176 feet, planes can take off or land at Roman Tmetuchl 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.

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 Roman Tmetuchl International Airport:

List of Nearest Airports to Roman Tmetuchl International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
1283.14 miles (455.67 km) ENEYap International Airport (YAP)Yap, Federated States of MicronesiaView Yap International Airport on a map Set YAP as destination Airport Set YAP as destination Airport Get more information about Yap International Airport
2402.42 miles (647.62 km) ENEFalalop Airfield (ULI)Falalop Island, Yap, Federated States of MicronesiaView Falalop Airfield on a map Set ULI as destination Airport Set ULI as destination Airport Get more information about Falalop Airfield
3565.60 miles (910.25 km) WBislig Airport (BPH)Bislig City, Surigao del Sur, PhilippinesView Bislig Airport on a map Set BPH as destination Airport Set BPH as destination Airport Get more information about Bislig Airport
4567.78 miles (913.76 km) WMati Airport (MXI)Mati, Davao Oriental, PhilippinesView Mati Airport on a map Set MXI as destination Airport Set MXI as destination Airport Get more information about Mati Airport
5571.65 miles (919.98 km) SRendani Airport (MKW)Manokwari, Irian Jaya, IndonesiaView Rendani Airport on a map Set MKW as destination Airport Set MKW as destination Airport Get more information about Rendani Airport
6574.17 miles (924.03 km) SKornasoren Airport (FOO)Noemfoor, Schouten Islands, IndonesiaView Kornasoren Airport on a map Set FOO as destination Airport Set FOO as destination Airport Get more information about Kornasoren Airport
7584.52 miles (940.69 km) WNWTandag Airport (TDG)Tandag, Surigao del Sur, PhilippinesView Tandag Airport on a map Set TDG as destination Airport Set TDG as destination Airport Get more information about Tandag Airport
8588.81 miles (947.59 km) WSWMelangguane Airport (MNA)Melangguane, North Sulawesi, IndonesiaView Melangguane Airport on a map Set MNA as destination Airport Set MNA as destination Airport Get more information about Melangguane Airport
9600.99 miles (967.19 km) SFrans Kaisiepo Airport (BIK)Biak, IndonesiaView Frans Kaisiepo Airport on a map Set BIK as destination Airport Set BIK as destination Airport Get more information about Frans Kaisiepo Airport
10606.38 miles (975.87 km) SAnggi Airport (AGD)Anggi, IndonesiaView Anggi Airport on a map Set AGD as destination Airport Set AGD as destination Airport Get more information about Anggi Airport
11607.58 miles (977.80 km) WNWSayak Airport (SOS)Del Carmen, Surigao del Norte, PhilippinesView Sayak Airport on a map Set SOS as destination Airport Set SOS as destination Airport Get more information about Sayak Airport
12608.48 miles (979.25 km) SSWAyawasi Airport (AYW)Ayawasi, IndonesiaView Ayawasi Airport on a map Set AYW as destination Airport Set AYW as destination Airport Get more information about Ayawasi Airport
13610.12 miles (981.90 km) WFrancisco Bangoy International Airport (DVO)Davao City, PhilippinesView Francisco Bangoy International Airport on a map Set DVO as destination Airport Set DVO as destination Airport Get more information about Francisco Bangoy International Airport
14629.62 miles (1,013.27 km) WButuan-Bancasi Airport (BXU)Butuan City, PhilippinesView Butuan-Bancasi Airport on a map Set BXU as destination Airport Set BXU as destination Airport Get more information about Butuan-Bancasi Airport
15640.91 miles (1,031.45 km) WNWSurigao Airport (SUG)Surigao City, Surigao del Norte, PhilippinesView Surigao Airport on a map Set SUG as destination Airport Set SUG as destination Airport Get more information about Surigao Airport

Map of Furthest Airports from Roman Tmetuchl International Airport:

List of Furthest Airports from Roman Tmetuchl International Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
112,249.70 miles (19,713.94 km) SEImperatriz-Prefeito Renato Moreira Airport (IMP)Imperatriz, Maranhão, BrazilView Imperatriz-Prefeito Renato Moreira Airport on a map Set IMP as destination Airport Set IMP as destination Airport Get more information about Imperatriz-Prefeito Renato Moreira Airport
212,245.69 miles (19,707.48 km) EAraguaína Airport (AUX)Araguaína, Tocantins, BrazilView Araguaína Airport on a map Set AUX as destination Airport Set AUX as destination Airport Get more information about Araguaína Airport
312,195.83 miles (19,627.24 km) SWTeresina–Senador Petrônio Portella Airport (THE)Teresina, Piauí, BrazilView Teresina–Senador Petrônio Portella Airport on a map Set THE as destination Airport Set THE as destination Airport Get more information about Teresina–Senador Petrônio Portella Airport
412,164.89 miles (19,577.44 km) ESEConceição do Araguaia Airport (CDJ)Conceição do Araguaia, Pará, BrazilView Conceição do Araguaia Airport on a map Set CDJ as destination Airport Set CDJ as destination Airport Get more information about Conceição do Araguaia Airport
512,153.91 miles (19,559.77 km) SEPalmas–Brigadeiro Lysias Rodrigues Airport (PMW)Palmas, Tocantins, BrazilView Palmas–Brigadeiro Lysias Rodrigues Airport on a map Set PMW as destination Airport Set PMW as destination Airport Get more information about Palmas–Brigadeiro Lysias Rodrigues Airport
612,148.67 miles (19,551.34 km) ESEJoão Correa da Rocha Airport (MAB)Marabá, Pará, BrazilView João Correa da Rocha Airport on a map Set MAB as destination Airport Set MAB as destination Airport Get more information about João Correa da Rocha Airport
712,135.12 miles (19,529.53 km) SSWBarra Airport (BQQ)Barra, Bahia, BrazilView Barra Airport on a map Set BQQ as destination Airport Set BQQ as destination Airport Get more information about Barra Airport
812,126.45 miles (19,515.59 km) EXinguara Airport (XIG)Xinguara, Pará, BrazilView Xinguara Airport on a map Set XIG as destination Airport Set XIG as destination Airport Get more information about Xinguara Airport
912,113.14 miles (19,494.15 km) ESECarajás Airport (CKS)Carajás, Pará, BrazilView Carajás Airport on a map Set CKS as destination Airport Set CKS as destination Airport Get more information about Carajás Airport
1012,109.82 miles (19,488.82 km) SBarreiras Airport (BRA)Barreiras, Bahia, BrazilView Barreiras Airport on a map Set BRA as destination Airport Set BRA as destination Airport Get more information about Barreiras Airport
1112,096.02 miles (19,466.60 km) SSWMarechal Cunha Machado International Airport (Tirirical) (SLZ)São Luís, BrazilView Marechal Cunha Machado International Airport (Tirirical) on a map Set SLZ as destination Airport Set SLZ as destination Airport Get more information about Marechal Cunha Machado International Airport (Tirirical)
1212,077.07 miles (19,436.11 km) WSWPetrolina–Senador Nilo Coelho Airport (PNZ)Petrolina, Pernambuco, BrazilView Petrolina–Senador Nilo Coelho Airport on a map Set PNZ as destination Airport Set PNZ as destination Airport Get more information about Petrolina–Senador Nilo Coelho Airport
1312,069.73 miles (19,424.30 km) SSWBarreirinhas Airport (BRB)Barreirinhas, Maranhão, BrazilView Barreirinhas Airport on a map Set BRB as destination Airport Set BRB as destination Airport Get more information about Barreirinhas Airport
1412,044.38 miles (19,383.50 km) SEGurupi Airport (GRP)Gurupi, Goiás, BrazilView Gurupi Airport on a map Set GRP as destination Airport Set GRP as destination Airport Get more information about Gurupi Airport
1512,035.20 miles (19,368.73 km) SWParnaíba–Prefeito Dr. João Silva Filho International Airport (PHB)Parnaiba, Piaui, BrazilView Parnaíba–Prefeito Dr. João Silva Filho International Airport on a map Set PHB as destination Airport Set PHB as destination Airport Get more information about Parnaíba–Prefeito Dr. João Silva Filho International Airport