Nonstop flight route between Adelaide, South Australia, Australia and Helena, Montana, United States:
Departure Airport:
(34°56'42"S by 138°31'50"E)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from ADL to HLN:
8,786.07 miles (14,139.78 km)
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Jump to:
- About this route
- ADL Airport Information
- HLN Airport Information
- Facts about ADL
- Facts about HLN
- Map of Nearest Airports to ADL
- List of Nearest Airports to ADL
- Map of Furthest Airports from ADL
- List of Furthest Airports from ADL
- Map of Nearest Airports to HLN
- List of Nearest Airports to HLN
- Map of Furthest Airports from HLN
- List of Furthest Airports from HLN
About this route:
A direct, nonstop flight between Adelaide Airport (ADL), Adelaide, South Australia, Australia and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,786 miles (or 14,140 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 Adelaide Airport and Helena Regional 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 Adelaide Airport and Helena Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ADL / YPAD |
| Airport Name: | Adelaide Airport |
| Location: | Adelaide, South Australia, Australia |
| GPS Coordinates: | 34°56'42"S by 138°31'50"E |
| Area Served: | Adelaide |
| Operator/Owner: | Adelaide Airport Limited |
| Airport Type: | Public |
| Elevation: | 20 feet (6 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ADL |
| More Information: | ADL Maps & Info |
Arrival 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 |
Facts about Adelaide Airport (ADL):
- The new control tower opened in early 2012.
- The new airport terminal is approximately 850 m end to end and is capable of handling 27 aircraft, including the Airbus A380, simultaneously and processing 3,000 passengers per hour.
- In October 2006, the new terminal was named the Capital City Airport of the Year at the Australian Aviation Industry Awards in Cairns.
- On 5 August 2008 Tiger Airways Australia confirmed that Adelaide Airport would become the airline's second hub which would base two of the airline's Airbus A320s by early 2009.
- Adelaide Airport (ADL) has 2 runways.
- Adelaide Airport handled 7,337,000 passengers last year.
- The furthest airport from Adelaide Airport (ADL) is Flores Airport (FLW), which is located 11,789 miles (18,972 kilometers) away in Flores Island, Azores, Portugal.
- The closest airport to Adelaide Airport (ADL) is Kingscote Airport (KGC), which is located 78 miles (125 kilometers) SW of ADL.
- Because of Adelaide Airport's relatively low elevation of 20 feet, planes can take off or land at Adelaide 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.
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.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
- Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 77.82 miles (125.24 km) SW | Kingscote Airport (KGC) | Kingscote, South Australia, Australia |     |
| 2 | 121.80 miles (196.01 km) NNW | Port Pirie Airport (PPI) | Port Pirie, South Australia, Australia | |
| 3 | 128.64 miles (207.03 km) NW | Cowell Airport (CCW) | Cowell, South Australia, Australia | |
| 4 | 132.42 miles (213.10 km) ENE | Renmark Airport (RMK) | Renmark, South Australia, Australia | |
| 5 | 143.66 miles (231.19 km) NW | Cleve Airport (CVC) | Cleve, South Australia, Australia | |
| 6 | 204.49 miles (329.10 km) E | Robinvale Airport (RBC) | Robinvale, Victoria, Australia | |
| 7 | 208.16 miles (335.01 km) ENE | Mildura Airport (MQL) | Mildura, Victoria, Australia | |
| 8 | 222.30 miles (357.76 km) ESE | Hopetoun Airport (HTU) | Hopetoun, Victoria, Australia | |
| 9 | 230.60 miles (371.12 km) SSE | Mount Gambier Airport (MGB) | Mount Gambier, Australia | |
| 10 | 233.96 miles (376.53 km) N | Wilpena Pound (HWK) | Hawker, South Australia, Australia | |
| 11 | 236.30 miles (380.29 km) ESE | Horsham Airport (HSM) | Horsham, Victoria, Australia | |
| 12 | 264.71 miles (426.01 km) NE | Broken Hill Airport (BHQ) | Broken Hill, New South Wales, Australia | |
| 13 | 271.30 miles (436.61 km) SE | Hamilton Airport (HLT) | Hamilton, Victoria, Australia | |
| 14 | 283.41 miles (456.10 km) WNW | Streaky Bay Airport (KBY) | Streaky Bay, South Australia, Australia | |
| 15 | 284.39 miles (457.67 km) SE | Portland Airport (PTJ) | Portland, Victoria, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,788.65 miles (18,971.94 km) WNW | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 2 | 11,781.26 miles (18,960.05 km) WNW | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 3 | 11,689.44 miles (18,812.29 km) WNW | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 4 | 11,674.48 miles (18,788.20 km) WNW | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 5 | 11,642.85 miles (18,737.30 km) WNW | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 6 | 11,600.34 miles (18,668.89 km) WNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 7 | 11,539.21 miles (18,570.51 km) WNW | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 8 | 11,515.75 miles (18,532.76 km) WNW | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 9 | 11,385.68 miles (18,323.43 km) NNE | St. John's International Airport (YYT) | St. John's, Newfoundland and Labrador, Canada | |
| 10 | 11,319.16 miles (18,216.38 km) NE | Saint-Pierre Airport (FSP) | Saint-Pierre, Saint Pierre and Miquelon, France | |
| 11 | 11,296.43 miles (18,179.79 km) NE | Miquelon Airport (MQC) | Miquelon, Saint Pierre and Miquelon | |
| 12 | 11,262.42 miles (18,125.06 km) NNE | Gander International Airport (YQX) | Gander, Newfoundland, Canada | |
| 13 | 11,196.40 miles (18,018.82 km) NE | Sydney/J.A. Douglas McCurdy Airport (YQY) | Sydney, Nova Scotia, Canada | |
| 14 | 11,162.25 miles (17,963.85 km) NE | Deer Lake Regional Airport (YDF) | Deer Lake, Newfoundland and Labrador, Canada | |
| 15 | 11,159.13 miles (17,958.83 km) NE | Port Hawkesbury Airport (YPS) | Port Hawkesbury, Nova Scotia, Canada | |
| 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 | |