Nonstop flight route between Aberdeen Proving Ground, Maryland, United States and Helena, Montana, United States:
Departure Airport:
(39°27'57"N by 76°10'8"W)
Arrival Airport:
(46°36'24"N by 111°58'58"W)
Distance from APG to HLN:
1,857.16 miles (2,988.80 km)
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Jump to:
- About this route
- APG Airport Information
- HLN Airport Information
- Facts about APG
- Facts about HLN
- Map of Nearest Airports to APG
- List of Nearest Airports to APG
- Map of Furthest Airports from APG
- List of Furthest Airports from APG
- 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 Phillips Army Airfield (APG), Aberdeen Proving Ground, Maryland, United States and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 1,857 miles (or 2,989 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 Phillips Army Airfield 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: | APG / KAPG |
| Airport Name: | Phillips Army Airfield |
| Location: | Aberdeen Proving Ground, Maryland, United States |
| GPS Coordinates: | 39°27'57"N by 76°10'8"W |
| Operator/Owner: | United States Army |
| Airport Type: | Military |
| Elevation: | 57 feet (17 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from APG |
| More Information: | APG 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 Phillips Army Airfield (APG):
- The closest airport to Phillips Army Airfield (APG) is Martin State Airport (MTN), which is located only 16 miles (26 kilometers) SW of APG.
- Phillips Army Airfield (APG) has 3 runways.
- Because of Phillips Army Airfield's relatively low elevation of 57 feet, planes can take off or land at Phillips Army Airfield 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 Phillips Army Airfield (APG) is Margaret River Airport (MGV), which is located 11,706 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Helena Regional Airport (HLN):
- In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.29 miles (26.22 km) SW | Martin State Airport (MTN) | Baltimore, Maryland, United States |     |
| 2 | 33.35 miles (53.67 km) ENE | Wilmington/Philadelphia Regional Airport (ILG) | Wilmington, Delaware, United States | |
| 3 | 33.41 miles (53.77 km) SW | Baltimore/Washington International Thurgood Marshall Airport (BWI) | between Baltimore, Maryland and Washington, D.C., United States | |
| 4 | 38.92 miles (62.64 km) NNE | Chester County G. O. Carlson Airport (CTH) | Coatesville, Pennsylvania, United States | |
| 5 | 41.11 miles (66.16 km) SW | Tipton Airport (FME) | Odenton, Maryland, United States | |
| 6 | 42.01 miles (67.61 km) SSW | Lee Airport (ANP) | Annapolis, Maryland, United States | |
| 7 | 44.30 miles (71.29 km) ESE | Dover Air Force Base (DOV) | Dover, Delaware, United States | |
| 8 | 45.82 miles (73.74 km) N | Lancaster Airport (LNS) | Lancaster, Pennsylvania, United States | |
| 9 | 46.05 miles (74.11 km) S | Easton Airport (ESN) | Easton, Maryland, United States | |
| 10 | 47.78 miles (76.90 km) NE | Brandywine Airport (OQN) | West Chester, Pennsylvania, United States | |
| 11 | 48.70 miles (78.38 km) NW | York Airport (THV) | York, Pennsylvania, United States | |
| 12 | 52.46 miles (84.42 km) SW | College Park Airport (CGS) | College Park, Maryland, United States | |
| 13 | 53.65 miles (86.34 km) ENE | Philadelphia Seaplane BaseChandler Field (PSQ) | Essington, Pennsylvania, United States | |
| 14 | 56.75 miles (91.34 km) ENE | Philadelphia International Airport (PHL) | Philadelphia, Pennsylvania, United States | |
| 15 | 57.13 miles (91.95 km) WSW | Montgomery County Airpark (GAI) | Gaithersburg, Maryland, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,705.51 miles (18,838.15 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,681.77 miles (18,799.93 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,668.29 miles (18,778.25 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,656.37 miles (18,759.07 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,607.68 miles (18,680.71 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,603.27 miles (18,673.60 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,592.28 miles (18,655.91 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,581.39 miles (18,638.39 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,573.86 miles (18,626.27 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,540.74 miles (18,572.97 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,473.78 miles (18,465.21 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,445.29 miles (18,419.36 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,427.36 miles (18,390.51 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,426.09 miles (18,388.47 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,363.94 miles (18,288.44 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 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 | |