Nonstop flight route between Decatur, Illinois, United States and Bayankhongor, Mongolia:
Departure Airport:

Arrival Airport:

Distance from DEC to BYN:
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- About this route
- DEC Airport Information
- BYN Airport Information
- Facts about DEC
- Facts about BYN
- 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 BYN
- List of Nearest Airports to BYN
- Map of Furthest Airports from BYN
- List of Furthest Airports from BYN
About this route:
A direct, nonstop flight between Decatur Airport (DEC), Decatur, Illinois, United States and Bayankhongor Airport (BYN), Bayankhongor, Mongolia would travel a Great Circle distance of 6,465 miles (or 10,405 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 Bayankhongor 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 Bayankhongor 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: | BYN / ZMBH |
Airport Name: | Bayankhongor Airport |
Location: | Bayankhongor, Mongolia |
GPS Coordinates: | 46°10'14"N by 100°42'0"E |
Operator/Owner: | Civil Aviation Authority of Mongolia |
Airport Type: | Joint (Civil and Military) |
Elevation: | 6085 feet (1,855 meters) |
# of Runways: | 2 |
View all routes: | Routes from BYN |
More Information: | BYN Maps & Info |
Facts about Decatur Airport (DEC):
- Decatur Airport (DEC) has 3 runways.
- 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.
- Decatur Airport is a public airport five miles east of Decatur, in Macon County, Illinois.
- 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.
- Decatur Airport has a 24,000 square feet passenger terminal with airline counters, a restaurant, baggage claim area and car rental facility.
- Decatur Airport covers 2,100 acres at an elevation of 682 feet.
Facts about Bayankhongor Airport (BYN):
- The furthest airport from Bayankhongor Airport (BYN) is Cochrane Airfield (LGR), which is nearly antipodal to Bayankhongor Airport (meaning Bayankhongor Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,110 miles (19,490 kilometers) away in Cochrane, Chile.
- Bayankhongor Airport (BYN) has 2 runways.
- The closest airport to Bayankhongor Airport (BYN) is Arvaykheer Airport (AVK), which is located 101 miles (162 kilometers) E of BYN.
- Bayankhongor Airport handled 2,192 passengers last year.
- Because of Bayankhongor Airport's high elevation of 6,085 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BYN. Combined with a high temperature, this could make BYN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.