Nonstop flight route between Decatur, Illinois, United States and Great Falls, Montana, United States:
Departure Airport:
(39°50'3"N by 88°51'56"W)
Arrival Airport:
(47°30'16"N by 111°11'13"W)
Distance from DEC to GFA:
1,229.19 miles (1,978.18 km)
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Jump to:
- About this route
- DEC Airport Information
- GFA Airport Information
- Facts about DEC
- Facts about GFA
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
- Map of Nearest Airports to GFA
- List of Nearest Airports to GFA
- Map of Furthest Airports from GFA
- List of Furthest Airports from GFA
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 1,229 miles (or 1,978 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 Decatur Airport and Malmstrom Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | DEC / KDEC |
| Airport Name: | Decatur Airport |
| Location: | Decatur, Illinois, United States |
| GPS Coordinates: | 39°50'3"N by 88°51'56"W |
| Area Served: | Decatur, Illinois |
| Operator/Owner: | Decatur Park District |
| Airport Type: | Public |
| Elevation: | 682 feet (208 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from DEC |
| More Information: | DEC Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | GFA / KGFA |
| Airport Names: |
|
| Location: | Great Falls, Montana, United States |
| GPS Coordinates: | 47°30'16"N by 111°11'13"W |
| View all routes: | Routes from GFA |
| More Information: | GFA Maps & Info |
Facts about Decatur Airport (DEC):
- The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- Because of Decatur Airport's relatively low elevation of 682 feet, planes can take off or land at Decatur Airport 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 Decatur Airport (DEC) is Margaret River Airport (MGV), which is located 11,056 miles (17,793 kilometers) away in Margaret River, Western Australia, Australia.
- Decatur Airport (DEC) has 3 runways.
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
Facts about Malmstrom Air Force Base (GFA):
- Z-147 was completely replaced by a new ARSR-4 JSS site on Bootlegger Ridge, about 14 miles northeast of Great Falls AFB.
- In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
- Great Falls AAB was assigned to II Bomber Command, Second Air Force.
- The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
- The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
- After World War II ended Great Falls AAB assumed a support mission for military personnel assigned to Alaskan military installations.
- The North American Aerospace Defense Command was created in 1957.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.19 miles (55.02 km) ENE | University of Illinois Willard Airport (CMI) | Champaign-Urbana, Illinois, United States |     |
| 2 | 39.74 miles (63.96 km) SE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 3 | 43.11 miles (69.38 km) W | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 4 | 44.49 miles (71.60 km) N | Central Illinois Regional Airport at Bloomington-Normal (BMI) | Bloomington, Illinois, United States | |
| 5 | 71.77 miles (115.50 km) ENE | Vermilion Regional Airport (DNV) | Danville, Illinois, United States | |
| 6 | 72.06 miles (115.96 km) NW | General Wayne A. Downing Peoria International Airport (PIA) | Peoria, Illinois, United States | |
| 7 | 74.24 miles (119.47 km) SSW | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 8 | 82.50 miles (132.78 km) S | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 9 | 87.02 miles (140.04 km) ESE | Terre Haute International Airport Hulman Field (HUF) | Terre Haute, Indiana, United States | |
| 10 | 90.48 miles (145.61 km) ESE | Sullivan County Airport (SIV) | Sullivan, Indiana, United States | |
| 11 | 90.73 miles (146.02 km) SW | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 12 | 99.06 miles (159.42 km) NE | Kentland Municipal Airport (KKT) | Kentland, Indiana, United States | |
| 13 | 99.70 miles (160.45 km) SE | Ed-Air Airport (OTN) | Oaktown, Indiana, United States | |
| 14 | 100.03 miles (160.99 km) SE | Lawrenceville–Vincennes International Airport (LWV) | Lawrenceville, Illinois, United States | |
| 15 | 100.87 miles (162.34 km) NNE | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,055.79 miles (17,792.53 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,033.16 miles (17,756.11 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,010.48 miles (17,719.61 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,009.70 miles (17,718.36 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,973.92 miles (17,660.77 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,959.31 miles (17,637.25 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,949.73 miles (17,621.83 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,939.97 miles (17,606.14 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 9 | 10,938.75 miles (17,604.17 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,915.31 miles (17,566.45 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 10,897.41 miles (17,537.64 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,873.03 miles (17,498.40 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,848.43 miles (17,458.81 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,844.55 miles (17,452.57 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,824.71 miles (17,420.65 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.69 miles (13.99 km) W | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 2 | 72.47 miles (116.63 km) SSW | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 3 | 78.24 miles (125.91 km) NNW | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 4 | 86.58 miles (139.33 km) ESE | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 5 | 93.96 miles (151.21 km) NW | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 6 | 97.38 miles (156.72 km) NE | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| 7 | 119.35 miles (192.08 km) S | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 8 | 123.77 miles (199.19 km) SSW | Bert Mooney Airport (BTM) | Butte, Montana, United States | |
| 9 | 129.57 miles (208.53 km) SSE | Mission Field (LVM) | Livingston, Montana, United States | |
| 10 | 142.19 miles (228.84 km) WSW | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 11 | 143.48 miles (230.90 km) ESE | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 12 | 152.64 miles (245.65 km) WNW | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| 13 | 164.32 miles (264.45 km) NNW | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 14 | 168.49 miles (271.16 km) SSW | Dillon Airport (DLN) | Dillon, Montana, United States | |
| 15 | 171.66 miles (276.26 km) SE | Billings Logan International Airport (BIL) | Billings, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,495.34 miles (16,890.57 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,479.89 miles (16,865.71 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,478.36 miles (16,863.24 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,465.08 miles (16,841.87 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,453.61 miles (16,823.41 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,383.05 miles (16,709.86 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,291.74 miles (16,562.90 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,268.76 miles (16,525.92 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,182.63 miles (16,387.32 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,177.46 miles (16,379.00 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,165.43 miles (16,359.64 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,128.20 miles (16,299.71 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,117.69 miles (16,282.80 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,110.27 miles (16,270.87 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 15 | 10,103.25 miles (16,259.57 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |