Nonstop flight route between Decatur, Illinois, United States and Smithton, Tasmania, Australia:
Departure Airport:
(39°50'3"N by 88°51'56"W)
Arrival Airport:
(40°50'6"S by 145°4'59"E)
Distance from DEC to SIO:
9,640.77 miles (15,515.27 km)
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Jump to:
- About this route
- DEC Airport Information
- SIO Airport Information
- Facts about DEC
- Facts about SIO
- 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 SIO
- List of Nearest Airports to SIO
- Map of Furthest Airports from SIO
- List of Furthest Airports from SIO
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Smithton Airport (SIO), Smithton, Tasmania, Australia would travel a Great Circle distance of 9,641 miles (or 15,515 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 large distance between Decatur Airport and Smithton Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Decatur Airport and Smithton Airport. You'll see that it will travel the same route of the red line on this map!
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: | SIO / YSMI |
| Airport Name: | Smithton Airport |
| Location: | Smithton, Tasmania, Australia |
| GPS Coordinates: | 40°50'6"S by 145°4'59"E |
| Operator/Owner: | DIER |
| Airport Type: | Public |
| Elevation: | 31 feet (9 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SIO |
| More Information: | SIO Maps & Info |
Facts about Decatur Airport (DEC):
- Federal Aviation Administration records say the airport had 1,232 passenger boardings in calendar year 2008, 672 in 2009 and 2,456 in 2010.
- 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.
- 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.
- Decatur Airport (DEC) has 3 runways.
- The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
Facts about Smithton Airport (SIO):
- Because of Smithton Airport's relatively low elevation of 31 feet, planes can take off or land at Smithton 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 Smithton Airport (SIO) is Corvo Airport (CVU), which is nearly antipodal to Smithton Airport (meaning Smithton Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,221 miles (19,667 kilometers) away in Corvo Island, Azores, Portugal.
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
- Smithton Airport (SIO) has 2 runways.
| 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 | 35.67 miles (57.40 km) ESE | Burnie Airport (BWT) | Burnie, Tasmania, Australia | |
| 2 | 73.94 miles (119.00 km) ESE | Devonport Airport (DPO) | Devonport, Tasmania, Australia | |
| 3 | 91.66 miles (147.51 km) NW | King Island Airport (KNS) | Currie, Tasmania, Australia | |
| 4 | 93.21 miles (150.01 km) E | George Town Aerodrome (GEE) | George Town, Tasmania, Australia | |
| 5 | 121.20 miles (195.06 km) ESE | Launceston Airport (LST) | Launceston, Tasmania, Australia | |
| 6 | 161.33 miles (259.64 km) ENE | Flinders Island Airport (FLS) | Flinders Island, Tasmania, Australia | |
| 7 | 170.12 miles (273.78 km) ESE | St Helens Airport (HLS) | St. Helens, Tasmania, Australia | |
| 8 | 184.69 miles (297.23 km) NNW | Geelong Airport (GEX) | Grovedale, Victoria, Australia | |
| 9 | 186.35 miles (299.90 km) SE | Hobart International Airport (HBA) | Hobart, Tasmania, Australia | |
| 10 | 197.55 miles (317.93 km) N | Moorabbin Harry Hawker Airport (MBW) | Moorabbin, Victoria, Australia | |
| 11 | 199.26 miles (320.67 km) NNW | Avalon Airport (AVV) | Avalon, Victoria, Australia | |
| 12 | 214.89 miles (345.83 km) N | Essendon Airport (MEB) | Melbourne, Victoria, Australia | |
| 13 | 218.83 miles (352.17 km) N | Melbourne Airport (MEL) | Melbourne, Victoria, Australia | |
| 14 | 224.73 miles (361.67 km) NW | Warrnambool Airport (WMB) | Warrnambool, Victoria, Australia | |
| 15 | 243.06 miles (391.16 km) NE | Bairnsdale Aerodrome (BSJ) | Bairnsdale, Victoria, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,220.71 miles (19,667.28 km) WNW | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 2 | 12,215.46 miles (19,658.83 km) WNW | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 3 | 12,070.45 miles (19,425.46 km) WNW | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 4 | 12,058.33 miles (19,405.95 km) WNW | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 5 | 12,052.80 miles (19,397.06 km) WNW | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 6 | 11,997.56 miles (19,308.15 km) WNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 7 | 11,899.84 miles (19,150.89 km) WNW | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 8 | 11,849.28 miles (19,069.52 km) WNW | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 9 | 11,440.34 miles (18,411.40 km) NE | St. John's International Airport (YYT) | St. John's, Newfoundland and Labrador, Canada | |
| 10 | 11,328.58 miles (18,231.54 km) NE | Gander International Airport (YQX) | Gander, Newfoundland, Canada | |
| 11 | 11,304.72 miles (18,193.13 km) ENE | Saint-Pierre Airport (FSP) | Saint-Pierre, Saint Pierre and Miquelon, France | |
| 12 | 11,289.56 miles (18,168.75 km) ENE | Miquelon Airport (MQC) | Miquelon, Saint Pierre and Miquelon | |
| 13 | 11,289.28 miles (18,168.29 km) WNW | Madeira Airport (FNC) | Funchal, Madeira, Portugal | |
| 14 | 11,283.08 miles (18,158.32 km) WNW | Porto Santo Airport (PXO) | Porto Santo, Madeira, Portugal | |
| 15 | 11,202.50 miles (18,028.64 km) NE | Deer Lake Regional Airport (YDF) | Deer Lake, Newfoundland and Labrador, Canada | |