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KGYY

GYY

Gary Chicago International Airport · Gary

Key Facts

Technical summary and operational standards.

ILS Approach StatusILS FREQUENCIES VERIFIED ✅

Field Elevation

591 ft / 180 m

Transition Altitude

18,000 ft

Primary Channel

TWR 125.60 MHz (TWR)

Runway Summary

12/307,003 ftAsphaltLIGHTED

02/203,603 ftAsphaltLIGHTED

Details Runways Frequencies Navaids Nearby

Mission Briefing & Tools

Direct calculators and pre-filled resources for this airport.

SkyVector FlightAware Live METAR Satellite

Less math, more flying. Did this save your approach? 🛬

Briefing for Gary Chicago International Airport (KGYY), United States. This facility features 2 active runways with an elevation of 591 ft. Verified ILS frequencies are available for precision approaches.Maintain a Transition Altitude of 18,000 ft for altimeter reset.

Airport Details

Full geographical and organizational metadata.

Full Name

Gary Chicago International Airport

ICAO / IATA

KGYY / GYY

Municipality

Gary

Country

Region

US-IN

GPS Coordinates

41.616299, -87.412804

Transition Altitude

18,000 ft

Official Website

—

Wikipedia

Runways & ILS Approach Data

Detailed dimensions and verified landing frequencies.

Runway 12 / 30

ILSLIGHTED

Crosswind 12 Crosswind 30 TOD VDP

Length: 7,003 ft / 2,135 m
Surface: Asphalt
Heading: 124.1° / 304.1°

RWY 12

No ILS

RWY 30

108.75 MHz

ID: GYY | CRS: 306°

Runway 02 / 20

LIGHTED

Crosswind 02 Crosswind 20 TOD VDP

Length: 3,603 ft / 1,098 m
Surface: Asphalt
Heading: 21.2° / 201.2°

RWY 02

No ILS

RWY 20

No ILS

Nearby Navaids

VOR, NDB, DME stations in the vicinity.

CGT · VORTAC (Chicago Heights)114,200 kHz

630 ft · Associated: None
41.509998, -87.571503

HK · NDB (Ermin)332 kHz

691 ft · Associated: KMDW
41.719002, -87.836403

MX · NDB (Kedzi)248 kHz

624 ft · Associated: KMDW
41.741501, -87.689697

GY · NDB (Garie)236 kHz

587 ft · Associated: KGYY
41.572399, -87.327003

Communication Frequencies

ATC and advisory channels.

A/D CHICAGO APP/DEP

133.10 MHz

ATIS ATIS

120.63 MHz

CTAF CTAF

125.60 MHz

GND GND

121.90 MHz

RCO KANKAKEE RDO

114.20 MHz

RDO TERRE HAUTE RDO

123.65 MHz

TWR TWR

125.60 MHz

Nearby Airports

Alternatives in the vicinity.

Chicago Midway International Airport

Porter County Municipal Airport

Chicago O'Hare International Airport

Chicago Executive Airport

Greater Kankakee Airport

Data Source: OurAirports · Technical Briefing Jan 2026
ILS Data Source: AIP / FAA NASR Cycle Verified