Nonstop flight route between Diomede, Alaska, United States and Helena, Montana, United States:
Departure Airport:
(65°45'29"N by 168°57'6"W)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from DIO to HLN:
2,437.63 miles (3,922.98 km)
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Jump to:
- About this route
- DIO Airport Information
- HLN Airport Information
- Facts about DIO
- Facts about HLN
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
- 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 Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 2,438 miles (or 3,923 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 Diomede Heliport (FAA: DM2) and Helena Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | DIO / |
| Airport Name: | Diomede Heliport (FAA: DM2) |
| Location: | Diomede, Alaska, United States |
| GPS Coordinates: | 65°45'29"N by 168°57'6"W |
| Elevation: | 0 feet (0 meters) |
| View all routes: | Routes from DIO |
| More Information: | DIO 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 Diomede Heliport (FAA: DM2) (DIO):
- The furthest airport from Diomede Heliport (FAA: DM2) (DIO) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,411 miles (16,755 kilometers) away in Villa Las Estrellas, Antarctica.
- Little Diomede Island is located about 25 miles west from the mainland, in the middle of the Bering Strait.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The school year 1953–1954 in Little Diomede Island was adapted to better serve the local needs.
- Because of Diomede Heliport (FAA: DM2)'s relatively low elevation of 0 feet, planes can take off or land at Diomede Heliport (FAA: DM2) 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.
- There is no hospital on the island and emergency services are limited due to the remoteness of the island.
- The median income for a household in the city was $23,750, and the median income for a family was $24,583.
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.
- 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.
- 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 | 26.11 miles (42.02 km) ESE | Wales Airport (WAA) | Wales, Alaska, United States |     |
| 2 | 32.28 miles (51.96 km) ESE | Tin City LRRS Airport (TNC) | Tin City, Alaska, United States | |
| 3 | 56.89 miles (91.56 km) ESE | Lost River 1 Airport (LSR) | Lost River, Alaska, United States | |
| 4 | 69.36 miles (111.62 km) ESE | Port Clarence Coast Guard Station (KPC) | Port Clarence, Alaska, United States | |
| 5 | 76.97 miles (123.88 km) ESE | Brevig Mission Airport (KTS) | Brevig Mission, Alaska, United States | |
| 6 | 82.96 miles (133.51 km) ESE | Teller Airport (TLA) | Teller, Alaska, United States | |
| 7 | 87.28 miles (140.46 km) ENE | Shishmaref Airport (SHH) | Shishmaref, Alaska, United States | |
| 8 | 133.35 miles (214.60 km) SE | Nome Airport (OME) | Nome, Alaska, United States | |
| 9 | 150.19 miles (241.71 km) SSW | Savoonga Airport (SVA) | Savoonga, Alaska, United States | |
| 10 | 157.16 miles (252.92 km) SW | Provideniya Bay Airport (PVS) | Provideniya, Chukotka, Russia | |
| 11 | 160.12 miles (257.69 km) SSW | Gambell Airport (GAM) | Gambell, Alaska, United States | |
| 12 | 162.57 miles (261.62 km) ESE | Council Airport (CIL) | Council, Alaska, United States | |
| 13 | 175.66 miles (282.69 km) E | Deering Airport (DRG) | Deering, Alaska, United States | |
| 14 | 176.50 miles (284.04 km) ESE | White Mountain Airport (WMO) | White Mountain, Alaska, United States | |
| 15 | 181.58 miles (292.22 km) NE | Kivalina Airport (KVL) | Kivalina, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,411.15 miles (16,755.07 km) ESE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 2 | 10,218.32 miles (16,444.75 km) SSW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 3 | 10,193.55 miles (16,404.88 km) SSW | George Airport (GRJ) | George, South Africa | |
| 4 | 10,160.56 miles (16,351.80 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 5 | 10,117.08 miles (16,281.83 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,070.75 miles (16,207.26 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 7 | 9,959.68 miles (16,028.51 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 9,938.43 miles (15,994.32 km) ESE | Port Stanley Airport (PSY) | Stanley, Falkland Islands, United Kingdom | |
| 9 | 9,930.95 miles (15,982.28 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 10 | 9,927.05 miles (15,976.00 km) ESE | RAF Mount Pleasant (MPN) | Falkland Islands | |
| 11 | 9,894.72 miles (15,923.96 km) SSW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 12 | 9,894.72 miles (15,923.96 km) SSW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 13 | 9,891.75 miles (15,919.19 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 14 | 9,858.58 miles (15,865.81 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 9,856.76 miles (15,862.88 km) S | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 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 | |