Nonstop flight route between Gary, Indiana (near Chicago), United States and Dillon, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from GYY to DLN:
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- About this route
- GYY Airport Information
- DLN Airport Information
- Facts about GYY
- Facts about DLN
- Map of Nearest Airports to GYY
- List of Nearest Airports to GYY
- Map of Furthest Airports from GYY
- List of Furthest Airports from GYY
- Map of Nearest Airports to DLN
- List of Nearest Airports to DLN
- Map of Furthest Airports from DLN
- List of Furthest Airports from DLN
About this route:
A direct, nonstop flight between Gary/Chicago International Airport (GYY), Gary, Indiana (near Chicago), United States and Dillon Airport (DLN), Dillon, Montana, United States would travel a Great Circle distance of 1,281 miles (or 2,061 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 Gary/Chicago International Airport and Dillon Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GYY / KGYY |
Airport Name: | Gary/Chicago International Airport |
Location: | Gary, Indiana (near Chicago), United States |
GPS Coordinates: | 41°36'59"N by 87°24'46"W |
Area Served: | Gary, Indiana |
Operator/Owner: | Gary/Chicago Airport Authority |
Airport Type: | Public |
Elevation: | 591 feet (180 meters) |
# of Runways: | 2 |
View all routes: | Routes from GYY |
More Information: | GYY Maps & Info |
Arrival 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 |
Facts about Gary/Chicago International Airport (GYY):
- Federal funds were secured in January 2006 to move railroad tracks away from the northwest corner to allow extension of the main runway to 9,000 feet, as well as add gates to the existing passenger terminal building.
- The furthest airport from Gary/Chicago International Airport (GYY) is Margaret River Airport (MGV), which is located 11,103 miles (17,868 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gary/Chicago International Airport (GYY) is Chicago Midway International Airport (MDW), which is located 21 miles (34 kilometers) NW of GYY.
- A long-standing proposal to turn the Gary/Chicago International Airport into Chicago's third major airport received a boost in early 2006 with the approval of $48 million in federal funding over the next ten years.
- Gary/Chicago International Airport covers 675 acres at an elevation of 591 feet above mean sea level.
- Gary/Chicago International Airport (GYY) has 2 runways.
- Chicago-based Boeing selected the airport to permanently base its Midwest corporate jet fleet.
- Because of Gary/Chicago International Airport's relatively low elevation of 591 feet, planes can take off or land at Gary/Chicago 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.
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.
- Dillon Airport (DLN) has 2 runways.
- The closest airport to Dillon Airport (DLN) is Bert Mooney Airport (BTM), which is located 48 miles (78 kilometers) N of DLN.