Nonstop flight route between Helena, Montana, United States and Grand Forks, North Dakota, United States:
Departure Airport:
(46°36'24"N by 111°58'58"W)
Arrival Airport:
(47°57'39"N by 97°24'3"W)
Distance from HLN to RDR:
688.77 miles (1,108.46 km)
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Jump to:
- About this route
- HLN Airport Information
- RDR Airport Information
- Facts about HLN
- Facts about RDR
- 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 RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
About this route:
A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 689 miles (or 1,108 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 Helena Regional Airport and Grand Forks Air Force Base, the route shown on this map most likely still appears to be a straight line.
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: | RDR / KRDR |
| Airport Names: |
|
| Location: | Grand Forks, North Dakota, United States |
| GPS Coordinates: | 47°57'39"N by 97°24'3"W |
| View all routes: | Routes from RDR |
| More Information: | RDR 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 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.
- 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 covers 1,224 acres at an elevation of 3,877 feet.
Facts about Grand Forks Air Force Base (RDR):
- Grand Forks Air Force Base was established on 1 December 1955, with construction beginning in the fall of that year.
- The 4133d SW was redesignated as the 319th Bombardment Wing on 1 February 1963 in a name-only redesigation and was assigned to SAC's Second Air Force, 810th Strategic Aerospace Division.
- The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
- In 1973, the 319th Bomb Wing acquired the AGM-69 Short Range Attack Missile, replacing the older AGM-28 Hound Dog air-to-ground missile aboard its B-52H aircraft.
- The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
- In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
| 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 | 10.44 miles (16.81 km) E | Grand Forks International Airport (GFK) | Grand Forks, North Dakota, United States | |
| 2 | 37.05 miles (59.62 km) ESE | Crookston Municipal Airport (CKN) | Crookston, Minnesota, United States | |
| 3 | 56.67 miles (91.20 km) E | Thief River Falls Regional Airport (TVF) | Thief River Falls, Minnesota, United States | |
| 4 | 68.20 miles (109.76 km) N | Pembina Municipal Airport (PMB) | Pembina, North Dakota, United States | |
| 5 | 70.43 miles (113.35 km) W | Devils Lake Regional Airport (DVL) | Devils Lake, North Dakota, United States | |
| 6 | 76.92 miles (123.79 km) SSE | Hector International Airport (FAR) | Fargo, North Dakota, United States | |
| 7 | 92.95 miles (149.59 km) SW | Jamestown Regional Airport (JMS) | Jamestown, North Dakota, United States | |
| 8 | 105.78 miles (170.23 km) SE | Detroit Lakes Airport (DTL) | Detroit Lakes, Minnesota, United States | |
| 9 | 115.91 miles (186.54 km) NE | Warroad International Memorial Airport (RRT) | Warroad, Minnesota, United States | |
| 10 | 118.75 miles (191.11 km) ESE | Bemidji Regional Airport (BJI) | Bemidji, Minnesota, United States | |
| 11 | 124.36 miles (200.14 km) SSE | Harry Stern Airport (WAH) | Wahpeton, North Dakota, United States | |
| 12 | 129.78 miles (208.86 km) SSE | Fergus Falls Municipal Airport (FFM) | Fergus Falls, Minnesota, United States | |
| 13 | 134.85 miles (217.03 km) N | Winnipeg James Armstrong Richardson International Airport (YWG) | Winnipeg, Manitoba, Canada | |
| 14 | 138.60 miles (223.05 km) ENE | Baudette International Airport (BDE) | Baudette, Minnesota, United States | |
| 15 | 139.90 miles (225.15 km) NNW | Portage la Prairie/Southport Airport (YPG) | Portage la Prairie, Manitoba, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,503.85 miles (16,904.27 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,479.86 miles (16,865.66 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,472.61 miles (16,853.99 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,453.90 miles (16,823.87 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,427.01 miles (16,780.60 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,397.22 miles (16,732.65 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,386.62 miles (16,715.61 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,380.61 miles (16,705.93 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 10,375.61 miles (16,697.88 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,336.89 miles (16,635.57 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,276.91 miles (16,539.04 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,242.01 miles (16,482.88 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,239.13 miles (16,478.24 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,226.99 miles (16,458.70 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,211.16 miles (16,433.23 km) SE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |