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):
- Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
- 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.
- The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
Facts about Grand Forks Air Force Base (RDR):
- 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.
- On 3 September 1974, the SAFSCOM Site Activation Team was relieved by the U.S.
- 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.
- On 3 November 1967, the Department of Defense revealed that GFAFB was one of 10 initial locations to host a Sentinel Anti-Ballistic Missile site.
- The 319th transitioned from B-52H to re-engined B-52G aircraft in 1983, and added the AGM-86 Air Launched Cruise Missile in 1984.
- On 26 May 1972, President Nixon and Soviet general secretary Leonid Brezhnev signed the ABM Treaty, which limited each nation to one site to protect strategic forces and one site to protect the "National Command Authority." With work about 85 percent complete at Grand Forks, the United States chose to finish construction at the North Dakota site.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
| 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 | |