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Gary/Chicago, Indiana

KGYY Gary/Chicago Intl

Gary/Chicago Intl (KGYY) is a towered, public-use airport in Gary/Chicago, Indiana, at 596.8 ft MSL. It has 2 runways: 02/20 (3,604 by 100 ft, asphalt), 12/30 (8,859 by 150 ft, concrete). CTAF 125.6.

FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.

Airport

At a glance

Identifiers
ICAO KGYY, FAA GYY
Location
Gary/Chicago, Indiana (Lake County). 3 NM NW of the city center
Elevation
596.8 ft MSL
Position
41.6173° N, 87.4145° W
Control tower
Yes (ATCT)
Sectional chart
Chicago
Magnetic variation
2° W (1990)
Fuel
100LL, Jet A
Ownership
Publicly owned, open to the public
Attendance
Daily ALL

2 runways

Runways

RunwayLength × widthSurfaceEdge lights
02/203,604 × 100 ftAsphalt, fair conditionMedium intensity
12/308,859 × 150 ftConcrete, good conditionHigh intensity

Runway ends and traffic pattern

EndPatternGlide slope lightsInstrumentDisplaced thresholdLanding distance
02Left traffic2-light PAPI, leftNone listedNone listed3,604 ft
20Left traffic2-light PAPI, leftNone listedNone listed3,604 ft
12Left traffic4-light PAPI, leftNone listedNone listed7,959 ft
30Left traffic4-light PAPI, leftILS/DME900 ft7,959 ft

VHF

Frequencies

ATIS
134.575
"Gary". Hours 0600-2300
CTAF
125.6
Tower
125.6
"Gary". Hours 0600-2300
Ground
121.9
"Gary". Hours 0600-2300
Approach / departure
133.1
"Chicago"

Weather station

AWOS-3PT GYY
134.575

Within reach

Nearest public airports

Before you go

Brief KGYY in Ascent EFB.

Current weather, NOTAMs and the airport diagram for Gary/Chicago Intl, in the app on iPhone and iPad.

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Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.

Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.