Nonstop flight route between Decatur, Illinois, United States and Shannon (County Clare), Ireland:
Departure Airport:

Arrival Airport:

Distance from DEC to SNN:
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- About this route
- DEC Airport Information
- SNN Airport Information
- Facts about DEC
- Facts about SNN
- 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 SNN
- List of Nearest Airports to SNN
- Map of Furthest Airports from SNN
- List of Furthest Airports from SNN
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Shannon Airport (SNN), Shannon (County Clare), Ireland would travel a Great Circle distance of 3,716 miles (or 5,980 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 Shannon 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 Shannon 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: | SNN / EINN |
Airport Names: |
|
Location: | Shannon (County Clare), Ireland |
GPS Coordinates: | 52°42'6"N by 8°55'28"W |
Area Served: | Limerick City, Ireland |
Operator/Owner: | Government of Ireland |
Airport Type: | Commercial |
Elevation: | 46 feet (14 meters) |
# of Runways: | 1 |
View all routes: | Routes from SNN |
More Information: | SNN Maps & Info |
Facts about Decatur Airport (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 Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- Decatur Airport is a public airport five miles east of Decatur, in Macon County, Illinois.
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
- 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 covers 2,100 acres at an elevation of 682 feet.
- Decatur Airport (DEC) has 3 runways.
Facts about Shannon Airport (SNN):
- Because of Shannon Airport's relatively low elevation of 46 feet, planes can take off or land at Shannon 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.
- In November 2013, Aer Lingus announced a new twice-weekly service from Shannon to Malaga.
- The closest airport to Shannon Airport (SNN) is Inisheer Aerodrome (INQ), which is located 35 miles (56 kilometers) NW of SNN.
- Shannon Airport (SNN) currently has only 1 runway.
- Shannon Airport handled 1,400,032 passengers last year.
- Shannon began to rebound in the late 1990s with the success of the Irish economy, the improving situation in Northern Ireland, and an influx of American tourists.
- In addition to being known as "Shannon Airport", another name for SNN is "Aerfort na Sionainne".
- In March 2013, the new company appointed Neil Pakey as its first CEO.
- The 1980s saw a number of new airlines arrive at Shannon.
- The furthest airport from Shannon Airport (SNN) is Ryan's Creek Aerodrome (SZS), which is nearly antipodal to Shannon Airport (meaning Shannon Airport is almost on the exact opposite side of the Earth from Ryan's Creek Aerodrome), and is located 12,015 miles (19,336 kilometers) away in Stewart Island, New Zealand.
- Ryanair increased services and passenger numbers at the airport through 2008.