Nonstop flight route between Odiham, United Kingdom and Helena, Montana, United States:
Departure Airport:
(51°14'3"N by 0°56'34"W)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from ODH to HLN:
4,536.69 miles (7,301.08 km)
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Jump to:
- About this route
- ODH Airport Information
- HLN Airport Information
- Facts about ODH
- Facts about HLN
- Map of Nearest Airports to ODH
- List of Nearest Airports to ODH
- Map of Furthest Airports from ODH
- List of Furthest Airports from ODH
- 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 RAF Odiham (ODH), Odiham, United Kingdom and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 4,537 miles (or 7,301 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 RAF Odiham 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 RAF Odiham 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: | ODH / EGVO |
| Airport Name: | RAF Odiham |
| Location: | Odiham, United Kingdom |
| GPS Coordinates: | 51°14'3"N by 0°56'34"W |
| Operator/Owner: | Ministry of Defence |
| View all routes: | Routes from ODH |
| More Information: | ODH 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 RAF Odiham (ODH):
- The closest airport to RAF Odiham (ODH) is Lasham Airfield (QLA), which is located only 5 miles (8 kilometers) SW of ODH.
- 618 Volunteer Gliding Squadron arrived in July 2000.
- The furthest airport from RAF Odiham (ODH) is Dunedin International Airport (DUD), which is located 11,891 miles (19,137 kilometers) away in Dunedin, Otago, New Zealand.
- In 1981 the Wessex helicopters of 72 Squadron moved to RAF Aldergrove, followed by 33 Squadron's Pumas in 1997 to RAF Benson.
- Aircraft operations began from the site in 1925 but it was not until October 1937 that it was opened as a permanent airfield, ironically by Erhard Milch, then the Chief of Staff for the Luftwaffe.
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".
- 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 | 5.10 miles (8.20 km) SW | Lasham Airfield (QLA) | Lasham, England, United Kingdom |     |
| 2 | 7.44 miles (11.98 km) NNE | Blackbushe Airport (BBS) | Yateley, Hampshire, England, United Kingdom | |
| 3 | 7.69 miles (12.38 km) ENE | Farnborough Airport (FAB) | Farnborough, United Kingdom | |
| 4 | 26.60 miles (42.80 km) SW | Southampton Airport (SOU) | Eastleigh (near Southampton), England, United Kingdom | |
| 5 | 26.72 miles (43.01 km) NE | London Heathrow Airport (LHR) | London, England, United Kingdom | |
| 6 | 27.09 miles (43.60 km) SSE | Chichester/Goodwood Airport (QUG) | Chichester, England, United Kingdom | |
| 7 | 27.22 miles (43.81 km) NNW | RAF Benson (BEX) | Benson, Oxfordshire, England, United Kingdom | |
| 8 | 31.49 miles (50.68 km) N | RAF High Wycombe (HYC) | High Wycombe, Buckinghamshire, England, United Kingdom | |
| 9 | 31.57 miles (50.81 km) NE | RAF Northolt (NHT) | Ruislip, England, United Kingdom | |
| 10 | 33.12 miles (53.31 km) E | Gatwick Airport (LGW) | London, England, United Kingdom | |
| 11 | 34.83 miles (56.05 km) E | Redhill Aerodrome (KRH) | Redhill, Surrey, England, United Kingdom | |
| 12 | 39.10 miles (62.93 km) S | Bembridge Airport (BBP) | Bembridge, Isle of Wight, United Kingdom | |
| 13 | 39.31 miles (63.26 km) SE | Shoreham Airport (ESH) | Lancing, West Sussex, United Kingdom | |
| 14 | 42.67 miles (68.68 km) E | London Biggin Hill Airport (BQH) | Biggin Hill / London, England, United Kingdom | |
| 15 | 44.69 miles (71.92 km) NNW | Oxford Airport (OXF) | Oxford, England, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,891.25 miles (19,137.06 km) SE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 2 | 11,883.05 miles (19,123.87 km) SSW | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 3 | 11,869.36 miles (19,101.83 km) SE | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 4 | 11,858.32 miles (19,084.08 km) ESE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 5 | 11,846.21 miles (19,064.57 km) ESE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 6 | 11,836.15 miles (19,048.39 km) SE | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 7 | 11,828.26 miles (19,035.70 km) SE | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 8 | 11,827.92 miles (19,035.15 km) SE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 9 | 11,821.25 miles (19,024.41 km) SSE | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 10 | 11,798.81 miles (18,988.29 km) SE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 11 | 11,797.02 miles (18,985.41 km) SE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 12 | 11,782.36 miles (18,961.82 km) SE | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 13 | 11,776.23 miles (18,951.96 km) SSE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 14 | 11,774.75 miles (18,949.58 km) SE | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 15 | 11,754.22 miles (18,916.54 km) SE | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 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 | |