Nonstop flight route between Dembidolo, Ethiopia and Helena, Montana, United States:
Departure Airport:
(8°33'0"N by 34°51'0"E)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from DEM to HLN:
8,113.56 miles (13,057.48 km)
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- About this route
- DEM Airport Information
- HLN Airport Information
- Facts about DEM
- Facts about HLN
- Map of Nearest Airports to DEM
- List of Nearest Airports to DEM
- Map of Furthest Airports from DEM
- List of Furthest Airports from DEM
- 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 Dembidolo Airport (DEM), Dembidolo, Ethiopia and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,114 miles (or 13,057 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 Dembidolo 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 Dembidolo 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: | DEM / HADD |
| Airport Name: | Dembidolo Airport |
| Location: | Dembidolo, Ethiopia |
| GPS Coordinates: | 8°33'0"N by 34°51'0"E |
| Elevation: | 0 feet (0 meters) |
| View all routes: | Routes from DEM |
| More Information: | DEM 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 Dembidolo Airport (DEM):
- Because of Dembidolo Airport's relatively low elevation of 0 feet, planes can take off or land at Dembidolo 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 Dembidolo Airport (DEM) is Manihi Airport (XMH), which is nearly antipodal to Dembidolo Airport (meaning Dembidolo Airport is almost on the exact opposite side of the Earth from Manihi Airport), and is located 12,025 miles (19,353 kilometers) away in Manihi, French Polynesia.
- The closest airport to Dembidolo Airport (DEM) is Gambela Airport (GMB), which is located 35 miles (56 kilometers) SW of DEM.
Facts about Helena Regional Airport (HLN):
- 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.
- 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 covers 1,224 acres at an elevation of 3,877 feet.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.11 miles (56.50 km) SW | Gambela Airport (GMB) | Gambela, Ethiopia |     |
| 2 | 55.01 miles (88.53 km) ESE | Gore Airport (GOR) | Gore, Ethiopia | |
| 3 | 62.40 miles (100.42 km) NNW | Beica Airport (BEI) | Beica, Ethiopia | |
| 4 | 103.04 miles (165.82 km) N | Asosa Airport (ASO) | Asosa, Ethiopia | |
| 5 | 118.95 miles (191.43 km) SSE | Mizan Teferi Airport (MTF) | Mizan Teferi, Ethiopia | |
| 6 | 147.73 miles (237.74 km) ESE | Aba Segud Airport (JIM) | Jimma, Ethiopia | |
| 7 | 224.33 miles (361.03 km) SSE | Baco Airport (Jinka Airport) (BCO) | Jinka, Ethiopia | |
| 8 | 229.05 miles (368.62 km) WNW | Malakal Airport (MAK) | Malakal, South Sudan | |
| 9 | 255.63 miles (411.39 km) SE | Arba Minch Airport (AMH) | Arba Minch, Ethiopia | |
| 10 | 270.04 miles (434.59 km) ESE | Awasa International Airport (AWA) | Awasa, Ethiopia | |
| 11 | 271.31 miles (436.62 km) E | Addis Ababa Bole International Airport (ADD) | Addis Ababa, Ethiopia | |
| 12 | 275.59 miles (443.52 km) N | Galegu Airport (DNX) | Dinder, Sudan | |
| 13 | 302.21 miles (486.35 km) S | Lokichogio Airport (LKG) | Lokichoggio, Kenya | |
| 14 | 304.67 miles (490.32 km) ENE | Mekane Selam Airport (MKS) | Mekane Selam, Ethiopia | |
| 15 | 314.99 miles (506.93 km) NE | Debre Tabor Airport (DBT) | Debre Tabor, Ethiopia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,025.27 miles (19,352.74 km) S | Manihi Airport (XMH) | Manihi, French Polynesia | |
| 2 | 12,023.81 miles (19,350.40 km) S | Ahe Airport (AHE) | Ahe, French Polynesia | |
| 3 | 12,009.81 miles (19,327.87 km) WSW | Atuona Airport (AUQ) | Atuona, Marquesas Islands, French Polynesia | |
| 4 | 11,963.58 miles (19,253.46 km) SSE | Arutua Airport (AXR) | Arutua, Tuamotus, French Polynesia | |
| 5 | 11,944.14 miles (19,222.17 km) S | Apataki Airport (APK) | Apataki, French Polynesia | |
| 6 | 11,938.14 miles (19,212.52 km) SSE | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 7 | 11,917.18 miles (19,178.80 km) S | Fakarava Airport (FAV) | Fakarava, Society Islands, French Polynesia | |
| 8 | 11,888.33 miles (19,132.36 km) SSW | Raroia Airport (RRR) | Raroia, French Polynesia | |
| 9 | 11,872.36 miles (19,106.67 km) S | Makemo Airport (MKP) | Makemo, French Polynesia | |
| 10 | 11,857.95 miles (19,083.48 km) SSW | Fangatau Airport (FGU) | Fangatau, French Polynesia | |
| 11 | 11,828.37 miles (19,035.86 km) S | Anaa Airport (AAA) | Anaa, Tuamotus, French Polynesia | |
| 12 | 11,749.40 miles (18,908.77 km) SE | Huahine – Fare Airport (HUH) | Huahine, Society Islands, French Polynesia | |
| 13 | 11,745.99 miles (18,903.30 km) SSE | Fa'a'ā International Airport (PPT) | Papeete, Tahiti, French Polynesia | |
| 14 | 11,745.66 miles (18,902.77 km) SSE | Moorea Airport (MOZ) | Moorea, Windward Islands, French Polynesia | |
| 15 | 11,732.92 miles (18,882.25 km) SE | Bora Bora Airport (BOB) | Bora Bora, French Polynesia | |
| 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 | |