About this route:

A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 111 miles (or 179 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 St. Louis Downtown Airport, 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: CPS / KCPS
Airport Name: St. Louis Downtown Airport
Location: Cahokia, Illinois (near St. Louis), United States
GPS Coordinates: 38°34'14"N by 90°9'21"W
Area Served: Greater St. Louis
Operator/Owner: Bi-State Development Agency
Airport Type: Public
Elevation: 413 feet (126 meters)
# of Runways: 3
View all routes: Routes from CPS
More Information: CPS Maps & Info

Facts about Decatur Airport (DEC):

  • Decatur Airport (DEC) has 3 runways.
  • 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 has a 24,000 square feet passenger terminal with airline counters, a restaurant, baggage claim area and car rental facility.
  • The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
  • The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
  • 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.

Facts about St. Louis Downtown Airport (CPS):

  • St. Louis Downtown Airport (CPS) has 3 runways.
  • The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
  • The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
  • Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
  • The airport opened in 1929 as Curtiss-Steinberg Airport.

Map of Nearest Airports to Decatur Airport:

List of Nearest Airports to Decatur Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
134.19 miles (55.02 km) ENEUniversity of Illinois Willard Airport (CMI)Champaign-Urbana, Illinois, United StatesView University of Illinois Willard Airport on a map Set CMI as origin Airport Set CMI as destination Airport Get more information about University of Illinois Willard Airport
239.74 miles (63.96 km) SEColes County Memorial Airport (MTO)Mattoon/Charleston, Illinois, United StatesView Coles County Memorial Airport on a map Set MTO as origin Airport Set MTO as destination Airport Get more information about Coles County Memorial Airport
343.11 miles (69.38 km) WAbraham Lincoln Capital Airport (SPI)Springfield, Illinois, United StatesView Abraham Lincoln Capital Airport on a map Set SPI as origin Airport Set SPI as destination Airport Get more information about Abraham Lincoln Capital Airport
444.49 miles (71.60 km) NCentral Illinois Regional Airport at Bloomington-Normal (BMI)Bloomington, Illinois, United StatesView Central Illinois Regional Airport at Bloomington-Normal on a map Set BMI as origin Airport Set BMI as destination Airport Get more information about Central Illinois Regional Airport at Bloomington-Normal
571.77 miles (115.50 km) ENEVermilion Regional Airport (DNV)Danville, Illinois, United StatesView Vermilion Regional Airport on a map Set DNV as origin Airport Set DNV as destination Airport Get more information about Vermilion Regional Airport
672.06 miles (115.96 km) NWGeneral Wayne A. Downing Peoria International Airport (PIA)Peoria, Illinois, United StatesView General Wayne A. Downing Peoria International Airport on a map Set PIA as origin Airport Set PIA as destination Airport Get more information about General Wayne A. Downing Peoria International Airport
774.24 miles (119.47 km) SSWGreenville Airport (GRE)Greenville, Illinois, United StatesView Greenville Airport on a map Set GRE as origin Airport Set GRE as destination Airport Get more information about Greenville Airport
882.50 miles (132.78 km) SSalem–Leckrone Airport (SLO)Salem, Illinois, United StatesView Salem–Leckrone Airport on a map Set SLO as origin Airport Set SLO as destination Airport Get more information about Salem–Leckrone Airport
987.02 miles (140.04 km) ESETerre Haute International Airport Hulman Field (HUF)Terre Haute, Indiana, United StatesView Terre Haute International Airport Hulman Field on a map Set HUF as origin Airport Set HUF as destination Airport Get more information about Terre Haute International Airport Hulman Field
1090.48 miles (145.61 km) ESESullivan County Airport (SIV)Sullivan, Indiana, United StatesView Sullivan County Airport on a map Set SIV as origin Airport Set SIV as destination Airport Get more information about Sullivan County Airport
1190.73 miles (146.02 km) SWSt. Louis Regional Airport (ALN)Alton, Illinois, United StatesView St. Louis Regional Airport on a map Set ALN as origin Airport Set ALN as destination Airport Get more information about St. Louis Regional Airport
1299.06 miles (159.42 km) NEKentland Municipal Airport (KKT)Kentland, Indiana, United StatesView Kentland Municipal Airport on a map Set KKT as origin Airport Set KKT as destination Airport Get more information about Kentland Municipal Airport
1399.70 miles (160.45 km) SEEd-Air Airport (OTN)Oaktown, Indiana, United StatesView Ed-Air Airport on a map Set OTN as origin Airport Set OTN as destination Airport Get more information about Ed-Air Airport
14100.03 miles (160.99 km) SELawrenceville–Vincennes International Airport (LWV)Lawrenceville, Illinois, United StatesView Lawrenceville–Vincennes International Airport on a map Set LWV as origin Airport Set LWV as destination Airport Get more information about Lawrenceville–Vincennes International Airport
15100.87 miles (162.34 km) NNEGreater Kankakee Airport (IKK)Kankakee, Illinois, United StatesView Greater Kankakee Airport on a map Set IKK as origin Airport Set IKK as destination Airport Get more information about Greater Kankakee Airport

Map of Furthest Airports from Decatur Airport:

List of Furthest Airports from Decatur Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,055.79 miles (17,792.53 km) WMargaret River Airport (MGV)Margaret River, Western Australia, AustraliaView Margaret River Airport on a map Set MGV as origin Airport Set MGV as destination Airport Get more information about Margaret River Airport
211,033.16 miles (17,756.11 km) WBusselton Regional Airport (BQB)Busselton, Western Australia, AustraliaView Busselton Regional Airport on a map Set BQB as origin Airport Set BQB as destination Airport Get more information about Busselton Regional Airport
311,010.48 miles (17,719.61 km) WManjimup Airport (MJP)Manjimup, Western Australia, AustraliaView Manjimup Airport on a map Set MJP as origin Airport Set MJP as destination Airport Get more information about Manjimup Airport
411,009.70 miles (17,718.36 km) WBunbury Airport (BUY)Bunbury, Western Australia, AustraliaView Bunbury Airport on a map Set BUY as origin Airport Set BUY as destination Airport Get more information about Bunbury Airport
510,973.92 miles (17,660.77 km) WSWRottnest Airport (RTS)Rottnest Island, Western Australia, AustraliaView Rottnest Airport on a map Set RTS as origin Airport Set RTS as destination Airport Get more information about Rottnest Airport
610,959.31 miles (17,637.25 km) WSWJandakot Airport (JAD)Jandakot, Western Australia, AustraliaView Jandakot Airport on a map Set JAD as origin Airport Set JAD as destination Airport Get more information about Jandakot Airport
710,949.73 miles (17,621.83 km) WSWPerth Airport (PER)Perth, Western Australia, AustraliaView Perth Airport on a map Set PER as origin Airport Set PER as destination Airport Get more information about Perth Airport
810,939.97 miles (17,606.14 km) WAlbany Airport (ALH)Albany, Western Australia, AustraliaView Albany Airport on a map Set ALH as origin Airport Set ALH as destination Airport Get more information about Albany Airport
910,938.75 miles (17,604.17 km) WSWJurien Bay Airport (JUR)Jurien Bay, Western Australia, AustraliaView Jurien Bay Airport on a map Set JUR as origin Airport Set JUR as destination Airport Get more information about Jurien Bay Airport
1010,915.31 miles (17,566.45 km) WKatanning Airport (KNI)Katanning, Western Australia, AustraliaView Katanning Airport on a map Set KNI as origin Airport Set KNI as destination Airport Get more information about Katanning Airport
1110,897.41 miles (17,537.64 km) WSWGeraldton Airport (GET)Geraldton, Western Australia, AustraliaView Geraldton Airport on a map Set GET as origin Airport Set GET as destination Airport Get more information about Geraldton Airport
1210,873.03 miles (17,498.40 km) WSWKalbarri Airport (KAX)Kalbarri, Western Australia, AustraliaView Kalbarri Airport on a map Set KAX as origin Airport Set KAX as destination Airport Get more information about Kalbarri Airport
1310,848.43 miles (17,458.81 km) WSWMorawa Airport (MWB)Morawa, Western Australia, AustraliaView Morawa Airport on a map Set MWB as origin Airport Set MWB as destination Airport Get more information about Morawa Airport
1410,844.55 miles (17,452.57 km) WSWMullewa Airport (MXU)Mullewa, Western Australia, AustraliaView Mullewa Airport on a map Set MXU as origin Airport Set MXU as destination Airport Get more information about Mullewa Airport
1510,824.71 miles (17,420.65 km) WSWShark Bay Airport (MJK)Monkey Mia, Western Australia, AustraliaView Shark Bay Airport on a map Set MJK as origin Airport Set MJK as destination Airport Get more information about Shark Bay Airport

Map of Nearest Airports to St. Louis Downtown Airport:

List of Nearest Airports to St. Louis Downtown Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
116.47 miles (26.50 km) NWLambert–St. Louis International Airport (STL)St. Louis, Missouri, United StatesView Lambert–St. Louis International Airport on a map Set STL as destination Airport Set STL as destination Airport Get more information about Lambert–St. Louis International Airport
217.42 miles (28.04 km) EMidAmerica St. Louis Airport (BLV)Belleville, Illinois, United StatesView MidAmerica St. Louis Airport on a map Set BLV as destination Airport Set BLV as destination Airport Get more information about MidAmerica St. Louis Airport
322.85 miles (36.78 km) NNESt. Louis Regional Airport (ALN)Alton, Illinois, United StatesView St. Louis Regional Airport on a map Set ALN as destination Airport Set ALN as destination Airport Get more information about St. Louis Regional Airport
427.50 miles (44.26 km) WNWSpirit of St. Louis Airport (SUS)Chesterfield, Missouri, United StatesView Spirit of St. Louis Airport on a map Set SUS as destination Airport Set SUS as destination Airport Get more information about Spirit of St. Louis Airport
545.73 miles (73.59 km) ENEGreenville Airport (GRE)Greenville, Illinois, United StatesView Greenville Airport on a map Set GRE as destination Airport Set GRE as destination Airport Get more information about Greenville Airport
664.55 miles (103.88 km) ESalem–Leckrone Airport (SLO)Salem, Illinois, United StatesView Salem–Leckrone Airport on a map Set SLO as destination Airport Set SLO as destination Airport Get more information about Salem–Leckrone Airport
772.26 miles (116.30 km) ESEMt. Vernon Airport (MVN)Mount Vernon, Illinois, United StatesView Mt. Vernon Airport on a map Set MVN as destination Airport Set MVN as destination Airport Get more information about Mt. Vernon Airport
873.57 miles (118.39 km) SESouthern Illinois Airport (MDH)Carbondale/Murphysboro, Illinois, United StatesView Southern Illinois Airport on a map Set MDH as destination Airport Set MDH as destination Airport Get more information about Southern Illinois Airport
983.94 miles (135.09 km) SEWilliamson County Regional Airport (MWA)Marion, Illinois, United StatesView Williamson County Regional Airport on a map Set MWA as destination Airport Set MWA as destination Airport Get more information about Williamson County Regional Airport
1091.63 miles (147.46 km) NNEAbraham Lincoln Capital Airport (SPI)Springfield, Illinois, United StatesView Abraham Lincoln Capital Airport on a map Set SPI as destination Airport Set SPI as destination Airport Get more information about Abraham Lincoln Capital Airport
1192.63 miles (149.07 km) WSWRolla National Airport (VIH)Rolla, Missouri, United StatesView Rolla National Airport on a map Set VIH as destination Airport Set VIH as destination Airport Get more information about Rolla National Airport
1298.29 miles (158.19 km) SSECape Girardeau Regional Airport (CGI)Cape Girardeau, Missouri, United StatesView Cape Girardeau Regional Airport on a map Set CGI as destination Airport Set CGI as destination Airport Get more information about Cape Girardeau Regional Airport
13108.03 miles (173.86 km) WJefferson City Memorial Airport (JEF)Jefferson City, Missouri, United StatesView Jefferson City Memorial Airport on a map Set JEF as destination Airport Set JEF as destination Airport Get more information about Jefferson City Memorial Airport
14109.88 miles (176.83 km) NNWQuincy Regional Airport (UIN)Quincy, Illinois, United StatesView Quincy Regional Airport on a map Set UIN as destination Airport Set UIN as destination Airport Get more information about Quincy Regional Airport
15111.34 miles (179.18 km) NEDecatur Airport (DEC)Decatur, Illinois, United StatesView Decatur Airport on a map Set DEC as destination Airport Set DEC as destination Airport Get more information about Decatur Airport

Map of Furthest Airports from St. Louis Downtown Airport:

List of Furthest Airports from St. Louis Downtown Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,998.38 miles (17,700.14 km) WMargaret River Airport (MGV)Margaret River, Western Australia, AustraliaView Margaret River Airport on a map Set MGV as destination Airport Set MGV as destination Airport Get more information about Margaret River Airport
210,976.37 miles (17,664.71 km) WBusselton Regional Airport (BQB)Busselton, Western Australia, AustraliaView Busselton Regional Airport on a map Set BQB as destination Airport Set BQB as destination Airport Get more information about Busselton Regional Airport
310,953.82 miles (17,628.43 km) WBunbury Airport (BUY)Bunbury, Western Australia, AustraliaView Bunbury Airport on a map Set BUY as destination Airport Set BUY as destination Airport Get more information about Bunbury Airport
410,950.15 miles (17,622.51 km) WManjimup Airport (MJP)Manjimup, Western Australia, AustraliaView Manjimup Airport on a map Set MJP as destination Airport Set MJP as destination Airport Get more information about Manjimup Airport
510,924.13 miles (17,580.63 km) WRottnest Airport (RTS)Rottnest Island, Western Australia, AustraliaView Rottnest Airport on a map Set RTS as destination Airport Set RTS as destination Airport Get more information about Rottnest Airport
610,908.52 miles (17,555.52 km) WJandakot Airport (JAD)Jandakot, Western Australia, AustraliaView Jandakot Airport on a map Set JAD as destination Airport Set JAD as destination Airport Get more information about Jandakot Airport
710,899.45 miles (17,540.92 km) WPerth Airport (PER)Perth, Western Australia, AustraliaView Perth Airport on a map Set PER as destination Airport Set PER as destination Airport Get more information about Perth Airport
810,897.05 miles (17,537.06 km) WSWJurien Bay Airport (JUR)Jurien Bay, Western Australia, AustraliaView Jurien Bay Airport on a map Set JUR as destination Airport Set JUR as destination Airport Get more information about Jurien Bay Airport
910,874.80 miles (17,501.25 km) WAlbany Airport (ALH)Albany, Western Australia, AustraliaView Albany Airport on a map Set ALH as destination Airport Set ALH as destination Airport Get more information about Albany Airport
1010,862.63 miles (17,481.67 km) WSWGeraldton Airport (GET)Geraldton, Western Australia, AustraliaView Geraldton Airport on a map Set GET as destination Airport Set GET as destination Airport Get more information about Geraldton Airport
1110,855.26 miles (17,469.80 km) WKatanning Airport (KNI)Katanning, Western Australia, AustraliaView Katanning Airport on a map Set KNI as destination Airport Set KNI as destination Airport Get more information about Katanning Airport
1210,843.70 miles (17,451.20 km) WSWKalbarri Airport (KAX)Kalbarri, Western Australia, AustraliaView Kalbarri Airport on a map Set KAX as destination Airport Set KAX as destination Airport Get more information about Kalbarri Airport
1310,809.16 miles (17,395.61 km) WSWMullewa Airport (MXU)Mullewa, Western Australia, AustraliaView Mullewa Airport on a map Set MXU as destination Airport Set MXU as destination Airport Get more information about Mullewa Airport
1410,809.10 miles (17,395.51 km) WSWMorawa Airport (MWB)Morawa, Western Australia, AustraliaView Morawa Airport on a map Set MWB as destination Airport Set MWB as destination Airport Get more information about Morawa Airport
1510,804.00 miles (17,387.31 km) WSWShark Bay Airport (MJK)Monkey Mia, Western Australia, AustraliaView Shark Bay Airport on a map Set MJK as destination Airport Set MJK as destination Airport Get more information about Shark Bay Airport