Nonstop flight route between Decatur, Illinois, United States and Jeju, South Korea:
Departure Airport:
(39°50'3"N by 88°51'56"W)
Arrival Airport:
(33°30'41"N by 126°29'35"E)
Distance from DEC to CJU:
6,888.63 miles (11,086.15 km)
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Jump to:
- About this route
- DEC Airport Information
- CJU Airport Information
- Facts about DEC
- Facts about CJU
- 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 CJU
- List of Nearest Airports to CJU
- Map of Furthest Airports from CJU
- List of Furthest Airports from CJU
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Jeju International Airport (CJU), Jeju, South Korea would travel a Great Circle distance of 6,889 miles (or 11,086 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 Jeju International 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 Jeju International 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: | CJU / RKPC |
| Airport Names: |
|
| Location: | Jeju, South Korea |
| GPS Coordinates: | 33°30'41"N by 126°29'35"E |
| Area Served: | Jeju Island |
| Operator/Owner: | Korea Airports Corporation |
| Airport Type: | Public |
| Elevation: | 118 feet (36 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from CJU |
| More Information: | CJU Maps & Info |
Facts about Decatur Airport (DEC):
- 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.
- 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.
Facts about Jeju International Airport (CJU):
- The furthest airport from Jeju International Airport (CJU) is Treinta y Tres Airport (TYT), which is nearly antipodal to Jeju International Airport (meaning Jeju International Airport is almost on the exact opposite side of the Earth from Treinta y Tres Airport), and is located 12,384 miles (19,929 kilometers) away in Treinta y Tres, Treinta y Tres, Uruguay.
- In addition to being known as "Jeju International Airport", other names for CJU include "제주국제공항 濟州國際空港", "Jeju Gukje Gonghang" and "Cheju Kukche Konghang".
- Because of Jeju International Airport's relatively low elevation of 118 feet, planes can take off or land at Jeju International 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.
- Jeju International Airport handled 20,055,238 passengers last year.
- The closest airport to Jeju International Airport (CJU) is Jeongseok / Jungseok Airport (JDG), which is located only 15 miles (24 kilometers) ESE of CJU.
- Jeju International Airport (CJU) 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 | 14.93 miles (24.03 km) ESE | Jeongseok / Jungseok Airport (JDG) | Jeju province, South Korea | |
| 2 | 86.44 miles (139.11 km) N | Mokpo Airport (MPK) | Mokpo, South Korea | |
| 3 | 113.03 miles (181.91 km) N | Gwangju Airport (KWJ) | Gwangju (Kwangju), South Korea | |
| 4 | 141.35 miles (227.47 km) NE | Sacheon Airport (HIN) | Sacheon, South Korea | |
| 5 | 147.48 miles (237.35 km) ESE | Fukue Airport (FUJ) | Gotō, Nagasaki, Japan | |
| 6 | 165.45 miles (266.27 km) N | Gunsan Airport (KUV) | Gunsan, South Korea | |
| 7 | 180.94 miles (291.19 km) NE | Gimhae International Airport (PUS) | Busan, South Korea | |
| 8 | 190.13 miles (305.99 km) E | Iki Airport (IKI) | Iki, Iki Island, Japan | |
| 9 | 201.94 miles (324.98 km) E | Nagasaki Airport (NGS) | Nagasaki, Japan | |
| 10 | 205.51 miles (330.73 km) NE | Daegu International Airport (TAE) | Daegu, South Korea | |
| 11 | 221.30 miles (356.15 km) E | Saga Airport (HSG) | Saga, Kyūshū, Japan | |
| 12 | 227.99 miles (366.92 km) E | Fukuoka Airport (FUK) | Fukuoka, Japan | |
| 13 | 228.62 miles (367.93 km) NNE | Cheongju International Airport (CJJ) | Cheong ju, South Korea | |
| 14 | 238.49 miles (383.82 km) NE | Pohang Airport (KPO) | Pohang, South Korea | |
| 15 | 239.93 miles (386.13 km) NNE | Yecheon Air Base (YEC) | Yecheon, South Korea | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,383.60 miles (19,929.43 km) ESE | Treinta y Tres Airport (TYT) | Treinta y Tres, Treinta y Tres, Uruguay | |
| 2 | 12,346.02 miles (19,868.95 km) SSE | Cerro Largo International Airport (MLZ) | Melo, Cerro Largo, Uruguay | |
| 3 | 12,310.91 miles (19,812.44 km) SW | Rio Grande Regional Airport (RIG) | Rio Grande, Brazil | |
| 4 | 12,307.00 miles (19,806.15 km) SE | Capitán de Corbeta Carlos A. Curbelo International Airport (PDP) | Maldonado/Punta del Este, Maldonado, Uruguay | |
| 5 | 12,299.14 miles (19,793.50 km) SSE | Cerro Largo International Airport (VCH) | Vichadero, Rivera, Uruguay | |
| 6 | 12,295.14 miles (19,787.05 km) SSW | Pelotas International Airport (PET) | Pelotas, Rio Grande do Sul, Brazil | |
| 7 | 12,286.13 miles (19,772.56 km) SSE | Comandante Gustavo Kraemer International Airport (BGX) | Bagé, Rio Grande do Sul, Brazil | |
| 8 | 12,265.87 miles (19,739.95 km) ESE | Carrasco/General Cesáreo L. Berisso International Airport (MVD) | Montevideo, Montevideo, Uruguay | |
| 9 | 12,263.95 miles (19,736.87 km) E | Santa Bernardina International Airport (DZO) | Durazno, Durazno, Uruguay | |
| 10 | 12,250.70 miles (19,715.55 km) SE | Tacuarembó Airport (TAW) | Tacuarembó, Tacuarembó, Uruguay | |
| 11 | 12,227.13 miles (19,677.60 km) SE | Pres. Gral. Óscar D. Gestido International Airport (RVY) | Rivera, Rivera, Uruguay | |
| 12 | 12,183.98 miles (19,608.16 km) ESE | Laguna de los Patos International Airport (CYR) | Colonia del Sacramento, Colonia, Uruguay | |
| 13 | 12,173.98 miles (19,592.07 km) S | Santa Maria Airport (RIA) | Santa Maria, Rio Grande do Sul, Brazil | |
| 14 | 12,166.65 miles (19,580.28 km) ESE | La Plata Airport (LPG) | La Plata, Buenos Aires, Argentina | |
| 15 | 12,161.02 miles (19,571.22 km) ESE | Tydeo Larre Borges International Airport (PDU) | Paysandú, Paysandú, Uruguay | |