Nonstop flight route between Marion, Illinois, United States and Denis Island, Seychelles:
Departure Airport:

Arrival Airport:

Distance from MWA to DEI:
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- About this route
- MWA Airport Information
- DEI Airport Information
- Facts about MWA
- Facts about DEI
- Map of Nearest Airports to MWA
- List of Nearest Airports to MWA
- Map of Furthest Airports from MWA
- List of Furthest Airports from MWA
- Map of Nearest Airports to DEI
- List of Nearest Airports to DEI
- Map of Furthest Airports from DEI
- List of Furthest Airports from DEI
About this route:
A direct, nonstop flight between Williamson County Regional Airport (MWA), Marion, Illinois, United States and Denis Island Airport (DEI), Denis Island, Seychelles would travel a Great Circle distance of 9,202 miles (or 14,808 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 Williamson County Regional Airport and Denis Island 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 Williamson County Regional Airport and Denis Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | MWA / KMWA |
Airport Name: | Williamson County Regional Airport |
Location: | Marion, Illinois, United States |
GPS Coordinates: | 37°45'18"N by 89°0'39"W |
Area Served: | Marion, Illinois |
Operator/Owner: | Williamson County Airport Authority |
Airport Type: | Public |
Elevation: | 472 feet (144 meters) |
# of Runways: | 2 |
View all routes: | Routes from MWA |
More Information: | MWA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | DEI / FSSD |
Airport Name: | Denis Island Airport |
Location: | Denis Island, Seychelles |
GPS Coordinates: | 3°48'1"S by 55°39'52"E |
Operator/Owner: | Denis Island |
Airport Type: | Private |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from DEI |
More Information: | DEI Maps & Info |
Facts about Williamson County Regional Airport (MWA):
- The closest airport to Williamson County Regional Airport (MWA) is Southern Illinois Airport (MDH), which is located only 13 miles (21 kilometers) W of MWA.
- It has one FBO, Aeroflite, located at the base of the control tower on the general aviation ramp.
- Williamson County Regional Airport (MWA) has 2 runways.
- Because of Williamson County Regional Airport's relatively low elevation of 472 feet, planes can take off or land at Williamson County Regional 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 Williamson County Regional Airport (MWA) is Margaret River Airport (MGV), which is located 11,065 miles (17,807 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Denis Island Airport (DEI):
- The closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of DEI.
- Denis Island Airport (DEI) currently has only 1 runway.
- The furthest airport from Denis Island Airport (DEI) is Atuona Airport (AUQ), which is located 11,058 miles (17,797 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- Because of Denis Island Airport's relatively low elevation of 10 feet, planes can take off or land at Denis Island 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.