Nonstop flight route between Dillon, Montana, United States and Rockford, Illinois, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from DLN to RFD:
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- About this route
- DLN Airport Information
- RFD Airport Information
- Facts about DLN
- Facts about RFD
- Map of Nearest Airports to DLN
- List of Nearest Airports to DLN
- Map of Furthest Airports from DLN
- List of Furthest Airports from DLN
- Map of Nearest Airports to RFD
- List of Nearest Airports to RFD
- Map of Furthest Airports from RFD
- List of Furthest Airports from RFD
About this route:
A direct, nonstop flight between Dillon Airport (DLN), Dillon, Montana, United States and Chicago Rockford International Airport (RFD), Rockford, Illinois, United States would travel a Great Circle distance of 1,186 miles (or 1,908 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 relatively short distance between Dillon Airport and Chicago Rockford International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | DLN / KDLN | 
| Airport Name: | Dillon Airport | 
| Location: | Dillon, Montana, United States | 
| GPS Coordinates: | 45°15'19"N by 112°33'8"W | 
| Area Served: | Dillon, Montana | 
| Operator/Owner: | Beaverhead County | 
| Airport Type: | Public | 
| Elevation: | 5241 feet (1,597 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from DLN | 
| More Information: | DLN Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | RFD / KRFD | 
| Airport Name: | Chicago Rockford International Airport | 
| Location: | Rockford, Illinois, United States | 
| GPS Coordinates: | 42°11'43"N by 89°5'49"W | 
| Area Served: | Rockford, Illinois | 
| Operator/Owner: | Greater Rockford Airport Authority | 
| Airport Type: | Public | 
| Elevation: | 742 feet (226 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from RFD | 
| More Information: | RFD Maps & Info | 
Facts about Dillon Airport (DLN):
- Because of Dillon Airport's high elevation of 5,241 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DLN. Combined with a high temperature, this could make DLN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Dillon Airport (DLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,660 miles (17,155 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Dillon Airport (DLN) is Bert Mooney Airport (BTM), which is located 48 miles (78 kilometers) N of DLN.
- Dillon Airport (DLN) has 2 runways.
Facts about Chicago Rockford International Airport (RFD):
- Several airlines have previously served the airport including United Express, Hooters Air, Frontier, Midwest Connect, Midway Connection, Trans Meridian, American Eagle, TWA, Ozark, McClain, Direct Air, Northwest Airlink, etc.
- Because of Chicago Rockford International Airport's relatively low elevation of 742 feet, planes can take off or land at Chicago Rockford 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.
- RFD has two cargo aprons in use.
- The closest airport to Chicago Rockford International Airport (RFD) is Southern Wisconsin Regional Airport (JVL), which is located 30 miles (47 kilometers) N of RFD.
- The furthest airport from Chicago Rockford International Airport (RFD) is Margaret River Airport (MGV), which is located 11,008 miles (17,716 kilometers) away in Margaret River, Western Australia, Australia.
- Chicago Rockford International Airport (RFD) has 2 runways.




