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

Arrival Airport:

Distance from GYY to BIL:
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- About this route
- GYY Airport Information
- BIL Airport Information
- Facts about GYY
- Facts about BIL
- 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 BIL
- List of Nearest Airports to BIL
- Map of Furthest Airports from BIL
- List of Furthest Airports from BIL
About this route:
A direct, nonstop flight between Gary/Chicago International Airport (GYY), Gary, Indiana (near Chicago), United States and Billings Logan International Airport (BIL), Billings, Montana, United States would travel a Great Circle distance of 1,091 miles (or 1,755 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 Billings Logan International 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: | BIL / KBIL |
Airport Name: | Billings Logan International Airport |
Location: | Billings, Montana, United States |
GPS Coordinates: | 45°48'28"N by 108°32'34"W |
Area Served: | Billings, Montana |
Operator/Owner: | City of Billings |
Airport Type: | Public |
Elevation: | 3652 feet (1,113 meters) |
# of Runways: | 3 |
View all routes: | Routes from BIL |
More Information: | BIL Maps & Info |
Facts about Gary/Chicago International Airport (GYY):
- The airport is also home to an Army Aviation Support Facility supporting UH-60 Blackhawk helicopter operations of the Illinois Army National Guard as well as an additional collocated Army National Guard Armory supporting additional Illinois ARNG units and personnel.
- For many years airplanes seen in the Chicago Air & Water Show have flown from here, including the {U.S.
- 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.
- 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.
- 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.
- Gary/Chicago was a hub for seasonal carrier SkyValue Airlines from December 2006 to April 2007.
- Chicago-based Boeing selected the airport to permanently base its Midwest corporate jet fleet.
- 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.
- Gary/Chicago International Airport (GYY) has 2 runways.
Facts about Billings Logan International Airport (BIL):
- Billings Logan International Airport (BIL) has 3 runways.
- The Aviation and Transit Board governs BIL, with seven members, each appointed for four-year terms.
- Billings Logan International Airport handled 899,302 passengers last year.
- The closest airport to Billings Logan International Airport (BIL) is Roundup Airport (RPX), which is located 46 miles (74 kilometers) N of BIL.
- Improvements over the years include runway lights in 1935 to the new 120-foot air traffic control tower in 2005.
- The first recorded flight in Billings was in 1912 by a local dentist named Dr.
- The furthest airport from Billings Logan International Airport (BIL) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,025 kilometers) away in Rodrigues Island, Mauritius.
- For at least part of each year 1977–1981 Billings saw scheduled Northwest DC-10s EWR-DTW-ORD-BIL-GTF-GEG-SEA and back.