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

Arrival Airport:

Distance from HDH to GYY:
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- About this route
- HDH Airport Information
- GYY Airport Information
- Facts about HDH
- Facts about GYY
- Map of Nearest Airports to HDH
- List of Nearest Airports to HDH
- Map of Furthest Airports from HDH
- List of Furthest Airports from HDH
- Map of Nearest Airports to GYY
- List of Nearest Airports to GYY
- Map of Furthest Airports from GYY
- List of Furthest Airports from GYY
About this route:
A direct, nonstop flight between Dillingham Airfield (HDH), Mokuleia, Hawaii, United States and Gary/Chicago International Airport (GYY), Gary, Indiana (near Chicago), United States would travel a Great Circle distance of 4,268 miles (or 6,868 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 Dillingham Airfield and Gary/Chicago International 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 Dillingham Airfield and Gary/Chicago International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | HDH / PHDH |
Airport Name: | Dillingham Airfield |
Location: | Mokuleia, Hawaii, United States |
GPS Coordinates: | 21°34'45"N by 158°11'49"W |
Operator/Owner: | U.S. Army |
Airport Type: | Public / Military |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from HDH |
More Information: | HDH Maps & Info |
Arrival 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 |
Facts about Dillingham Airfield (HDH):
- The furthest airport from Dillingham Airfield (HDH) is Ghanzi Airport (GNZ), which is nearly antipodal to Dillingham Airfield (meaning Dillingham Airfield is almost on the exact opposite side of the Earth from Ghanzi Airport), and is located 12,425 miles (19,995 kilometers) away in Ghanzi, Botswana.
- Dillingham Airfield is part of a centralized state structure governing all of the airports and seaports of Hawaii.
- The closest airport to Dillingham Airfield (HDH) is Wheeler AAF (HHI), which is located only 12 miles (19 kilometers) ESE of HDH.
- As a general aviation joint-use facility, the airfield has one runway, a UNICOM tower, powered aircraft and glider hangars, and a tie down area for recreation aircraft.
- Because of Dillingham Airfield's relatively low elevation of 14 feet, planes can take off or land at Dillingham Airfield 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.
- Dillingham Airfield (HDH) currently has only 1 runway.
- The runway was paved, extended to 9,000 feet long, and a crosswind runway added from 1942-1945.
Facts about Gary/Chicago International Airport (GYY):
- Gary/Chicago International Airport (GYY) has 2 runways.
- 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.
- 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.
- 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.
- On May 24, 2013 Allegiant Air reported it was cancelling air service out of Gary in August.
- Gary/Chicago is the official "third airport" for the Chicago metropolitan area, supplementing Chicago's major airports, O'Hare and Midway.
- 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.