Nonstop flight route between Helena, Montana, United States and Forrest, Western Australia, Australia:
Departure Airport:
(46°36'24"N by 111°58'58"W)
Arrival Airport:
(30°50'17"S by 128°6'54"E)
Distance from HLN to FOS:
9,106.65 miles (14,655.69 km)
Share this route:
Jump to:
- About this route
- HLN Airport Information
- FOS Airport Information
- Facts about HLN
- Facts about FOS
- 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 FOS
- List of Nearest Airports to FOS
- Map of Furthest Airports from FOS
- List of Furthest Airports from FOS
About this route:
A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Forrest Airport (FOS), Forrest, Western Australia, Australia would travel a Great Circle distance of 9,107 miles (or 14,656 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 Forrest 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 Forrest 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: |
|
| 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: | FOS / YFRT |
| Airport Name: | Forrest Airport |
| Location: | Forrest, Western Australia, Australia |
| GPS Coordinates: | 30°50'17"S by 128°6'54"E |
| Operator/Owner: | Fayburn Pty Ltd. |
| Airport Type: | Public |
| Elevation: | 511 feet (156 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from FOS |
| More Information: | FOS 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.
- 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.
- Helena Regional Airport (HLN) has 3 runways.
Facts about Forrest Airport (FOS):
- Because of Forrest Airport's relatively low elevation of 511 feet, planes can take off or land at Forrest 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 Forrest Airport (FOS) is L.F. Wade International Airport (BDA), which is located 11,677 miles (18,792 kilometers) away in Ferry Reach (near Hamilton), Bermuda.
- The closest airport to Forrest Airport (FOS) is Ceduna Airport (CED), which is located 341 miles (550 kilometers) ESE of FOS.
- Forrest Airport (FOS) has 2 runways.
| 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 | 341.48 miles (549.55 km) ESE | Ceduna Airport (CED) | Ceduna, South Australia, Australia | |
| 2 | 374.40 miles (602.54 km) WNW | Laverton Airport (LVO) | Laverton, Western Australia, Australia | |
| 3 | 386.60 miles (622.17 km) W | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 4 | 387.90 miles (624.26 km) ESE | Streaky Bay Airport (KBY) | Streaky Bay, South Australia, Australia | |
| 5 | 394.76 miles (635.31 km) W | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 6 | 401.26 miles (645.76 km) WNW | Murrin Murrin Airport (WUI) | Murrin Murrin Joint Venture, Western Australia, Australia | |
| 7 | 414.54 miles (667.13 km) ENE | Coober Pedy Airport (CPD) | Coober Pedy, South Australia, Australia | |
| 8 | 416.80 miles (670.78 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 9 | 427.68 miles (688.29 km) NNE | Ayers Rock Airport (AYQ) | Yulara, Northern Territory, Australia | |
| 10 | 429.26 miles (690.83 km) WNW | Leonora Airport (LNO) | Leonora, Western Australia, Australia | |
| 11 | 491.88 miles (791.60 km) WNW | Leinster Airport (LER) | Leinster, Western Australia, Australia | |
| 12 | 518.18 miles (833.92 km) WNW | Mount Keith Airport (WME) | Mount Keith, Western Australia, Australia | |
| 13 | 522.61 miles (841.06 km) W | Windarling Airport (WRN) | Windarling, Australia | |
| 14 | 528.55 miles (850.62 km) ESE | Cleve Airport (CVC) | Cleve, South Australia, Australia | |
| 15 | 536.89 miles (864.03 km) E | Andamooka Airport (ADO) | Andamooka, South Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,677.05 miles (18,792.34 km) ENE | L.F. Wade International Airport (BDA) | Ferry Reach (near Hamilton), Bermuda | |
| 2 | 11,331.59 miles (18,236.37 km) NE | Barbuda Codrington Airport (BBQ) | Codrington, Barbuda, Antigua and Barbuda | |
| 3 | 11,318.11 miles (18,214.69 km) NE | Clayton J. Lloyd International Airport (AXA) | The Valley, Anguilla | |
| 4 | 11,312.98 miles (18,206.44 km) N | Saint-Pierre Airport (FSP) | Saint-Pierre, Saint Pierre and Miquelon, France | |
| 5 | 11,312.57 miles (18,205.76 km) NE | L'Espérance Airport Grand Case Airport (CCE) | Saint Martin, Guadeloupe | |
| 6 | 11,309.51 miles (18,200.84 km) NE | Gustaf III Airport Saint Barthélemy Airport St. Jean Airport (SBH) | Gustavia, Saint Barthélemy, Saint Barthélemy | |
| 7 | 11,306.88 miles (18,196.62 km) NE | Princess Juliana International Airport (SXM) | Philipsburg, Sint Maarten, Kingdom of the Netherlands | |
| 8 | 11,303.54 miles (18,191.23 km) NE | V. C. Bird International Airport (ANU) | St. John's, Antigua, Antigua and Barbuda | |
| 9 | 11,294.02 miles (18,175.92 km) NNE | Shearwater Heliport (YAW) | Shearwater, Nova Scotia, Canada | |
| 10 | 11,292.88 miles (18,174.08 km) NNE | Port Hawkesbury Airport (YPS) | Port Hawkesbury, Nova Scotia, Canada | |
| 11 | 11,291.28 miles (18,171.50 km) NNE | Sydney/J.A. Douglas McCurdy Airport (YQY) | Sydney, Nova Scotia, Canada | |
| 12 | 11,288.31 miles (18,166.74 km) N | Miquelon Airport (MQC) | Miquelon, Saint Pierre and Miquelon | |
| 13 | 11,281.34 miles (18,155.51 km) NE | F.D. Roosevelt Airport (EUX) | Sint Eustatius, Caribbean Netherlands | |
| 14 | 11,280.57 miles (18,154.27 km) NE | Robert L. Bradshaw International Airport (SKB) | Basseterre, Saint Kitts and Nevis | |
| 15 | 11,280.52 miles (18,154.19 km) NE | Juancho E. Yrausquin Airport (SAB) | Saba, Caribbean Netherlands | |