Nonstop flight route between Helena, Montana, United States and Plymouth, Indiana, United States:
Departure Airport:
(46°36'24"N by 111°58'58"W)
Arrival Airport:
(41°21'54"N by 86°18'1"W)
Distance from HLN to PLY:
1,320.50 miles (2,125.14 km)
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Jump to:
- About this route
- HLN Airport Information
- PLY Airport Information
- Facts about HLN
- Facts about PLY
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
- Map of Nearest Airports to PLY
- List of Nearest Airports to PLY
- Map of Furthest Airports from PLY
- List of Furthest Airports from PLY
About this route:
A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Plymouth Municipal Airport (PLY), Plymouth, Indiana, United States would travel a Great Circle distance of 1,321 miles (or 2,125 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 Plymouth Municipal 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: |
|
| 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: | PLY / |
| Airport Names: |
|
| Location: | Plymouth, Indiana, United States |
| GPS Coordinates: | 41°21'54"N by 86°18'1"W |
| Area Served: | Plymouth, Indiana |
| Operator/Owner: | Plymouth BOAC |
| Airport Type: | Public |
| Elevation: | 800 feet (244 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PLY |
| More Information: | PLY 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 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.
- Helena Regional Airport (HLN) has 3 runways.
- 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 Plymouth Municipal Airport (PLY):
- In addition to being known as "Plymouth Municipal Airport", another name for PLY is "C65".
- The furthest airport from Plymouth Municipal Airport (PLY) is Margaret River Airport (MGV), which is located 11,163 miles (17,965 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Plymouth Municipal Airport's relatively low elevation of 800 feet, planes can take off or land at Plymouth Municipal 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 closest airport to Plymouth Municipal Airport (PLY) is Fulton County Airport (RCR), which is located 22 miles (35 kilometers) SSE of PLY.
- Plymouth Municipal Airport (PLY) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 51.31 miles (82.58 km) SSW | Bert Mooney Airport (BTM) | Butte, Montana, United States |     |
| 2 | 67.05 miles (107.90 km) NNE | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 3 | 69.72 miles (112.21 km) SE | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 4 | 72.47 miles (116.63 km) NNE | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 5 | 96.56 miles (155.40 km) SE | Mission Field (LVM) | Livingston, Montana, United States | |
| 6 | 97.30 miles (156.59 km) SSW | Dillon Airport (DLN) | Dillon, Montana, United States | |
| 7 | 102.03 miles (164.20 km) WNW | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 8 | 122.80 miles (197.63 km) ENE | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 9 | 133.72 miles (215.20 km) N | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 10 | 137.25 miles (220.89 km) SW | Lemhi County Airport (SMN) | Salmon, Idaho, United States | |
| 11 | 138.97 miles (223.65 km) SSE | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 12 | 139.51 miles (224.52 km) N | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 13 | 158.54 miles (255.14 km) NW | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| 14 | 163.70 miles (263.45 km) E | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 15 | 169.14 miles (272.20 km) NE | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,563.08 miles (16,999.59 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,552.15 miles (16,981.99 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,548.64 miles (16,976.36 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,536.59 miles (16,956.96 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,525.82 miles (16,939.62 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,452.26 miles (16,821.24 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,363.52 miles (16,678.43 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,340.10 miles (16,640.74 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,252.07 miles (16,499.06 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,247.66 miles (16,491.97 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,235.05 miles (16,471.68 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,200.52 miles (16,416.11 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,189.58 miles (16,398.51 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,174.40 miles (16,374.07 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,162.80 miles (16,355.40 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 21.59 miles (34.74 km) SSE | Fulton County Airport (RCR) | Rochester, Indiana, United States | |
| 2 | 23.74 miles (38.20 km) N | South Bend International Airport (SBN) | South Bend, Indiana, United States | |
| 3 | 26.66 miles (42.91 km) WNW | La Porte Municipal Airport (LPO) | La Porte, Indiana, United States | |
| 4 | 26.66 miles (42.91 km) WNW | La Porte Municipal Airport (PPO) | La Porte, Indiana, United States | |
| 5 | 28.49 miles (45.84 km) ENE | Goshen Municipal Airport (GSH) | Goshen, Indiana, United States | |
| 6 | 28.91 miles (46.52 km) NNE | Elkhart Municipal Airport (EKI) | Elkhart, Indiana, United States | |
| 7 | 33.09 miles (53.26 km) N | Jerry Tyler Memorial Airport (NLE) | Niles, Michigan, United States | |
| 8 | 35.67 miles (57.40 km) NW | Michigan City Municipal Airport (MGC) | Michigan City, Indiana, United States | |
| 9 | 37.14 miles (59.78 km) W | Porter County Regional Airport (VPZ) | Valparaiso, Indiana, United States | |
| 10 | 50.13 miles (80.68 km) S | Grissom Air Reserve Base (GUS) | Peru, Indiana, United States | |
| 11 | 53.16 miles (85.55 km) N | Southwest Michigan Regional Airport (BEH) | Benton Harbor, Michigan, United States | |
| 12 | 54.20 miles (87.22 km) WSW | Jasper County Airport (RNZ) | Rensselaer, Indiana, United States | |
| 13 | 59.18 miles (95.25 km) SSE | Kokomo Municipal Airport (OKK) | Kokomo, Indiana, United States | |
| 14 | 60.14 miles (96.79 km) WNW | Gary/Chicago International Airport (GYY) | Gary, Indiana (near Chicago), United States | |
| 15 | 61.54 miles (99.04 km) ESE | Smith Field (SMD) | Fort Wayne, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,162.76 miles (17,964.67 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,139.41 miles (17,927.11 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,122.15 miles (17,899.32 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,114.80 miles (17,887.49 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,070.29 miles (17,815.85 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,059.19 miles (17,798.00 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 11,057.27 miles (17,794.90 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,047.02 miles (17,778.40 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,027.27 miles (17,746.62 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,023.32 miles (17,740.28 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,971.96 miles (17,657.62 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,939.58 miles (17,605.51 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,930.25 miles (17,590.48 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,920.50 miles (17,574.80 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,878.68 miles (17,507.50 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |