Gary/Chicago International Airport
GYY · KGYY · Gary, IN · Towered · Print kneeboard
FAA airport diagramView full size ↓ Nearby now
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:35 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:16 AM | 10:16Z |
| Sunrise | 05:47 AM | 10:47Z |
| Sunset | 08:04 PM | 01:04Z |
| Evening civil twilight Loggable night begins | 08:35 PM | 01:35Z |
Plan a flight from KGYY
Past 24 hours category · wind · ceiling · visibility trends
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Density altitude today projected curve · departure window · takeoff roll
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 12LEFT traffic
- Heading
- 126° mag · 124° true
- Dimensions
- 8,859 × 150 ft
- TPA
- 1,600 ft MSL (≈1,000 AGL) · standard
- Surface
- Concrete
- Lights
- 4-light PAPI (left) (3°)
- CTAF
- 125.6
More details — RWY 12
- Threshold elev
- 597 ft
- Markings
- precision
- Approach obstacle
- Ant, 93 ft, 3,777 ft from threshold, 1248 ft L of centerline — 38:1 slope to clear
- Threshold crossing height
- 50 ft
- TDZ elevation
- 597 ft
- Declared TORA/TODA/ASDA/LDA
- 8,859 / 8,859 / 7,959 / 7,959 ft
- End lights
- REIL, centerline
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 02/20 | 3,604 ft | |
| 12/30 | 8,859 ft |
Prefer one flat page? Full runway details for KGYY → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KGYY kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
“Gary”Taxi & takeoff
“Gary”Departure & arrival
“Chicago”Also
ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (5 frequencies)
| Frequency | Used by |
|---|---|
| 38.3 | ARNG OPS |
| 133.1 | LUCIT STAR |
| 139.6 | ARNG OPS |
| 245.7 | ARNG OPS |
| 285.6 | APCH/P DEP/P · LUCIT STAR |
Source: FAA NASR (current 28-day cycle).
Instrument landing systems
RWY 30
| Runway | ILS |
|---|---|
| RWY 30 | ILS/DME · CAT I · LOC 108.75 (GYY) · GS 3.00° |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
CGT 114.20 · EON 113.20
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| CGT · Chicago Heights | VORTAC | 114.20 · 89X | Low | r046° / 9.6 NM |
| EON · Peotone | VORTAC | 113.20 · 79X | Low | r037° / 26.9 NM |
Prefer one flat list? All KGYY frequencies →
Charts & procedures
Lowest minimums here: ILS with vertical guidance · VFR sectional →
Airport info
From the field
Do you run KGYY, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.
Airport information
- ICAO / IATA
- KGYY / GYY
- Coordinates
- 41.6171, -87.4132
- Elevation
- 597 ft MSL
- Magnetic variation
- 2W
- Sectional chart
- CHICAGO
- Airport use
- Public
- Control tower
- Yes
- Tower hours
- 0600-2300
- Airspace
- Class D · CLASS D SVC 0600-2300; OTHER TIMES CLASS G
- Weather station
- AWOS-3PT · 134.575 · ☎ 219-944-0010
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- TERRE HAUTE · 122.3 · 1-800-WX-BRIEF
- NOTAM facility
- GYY
- Attendance
- ALL ALL
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Wind indicator
- lighted
- FAR 139 class
- IV A
- Landing fee
- Yes
- Distance from city
- 3 NW
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- WHEN ATCT CLSD ACTVT MALSR RWY 30; REIL RWY 02, 12 & 20; MIRL RWY 02/20; HIRL RWY 12/30 - CTAF. on 125.6 — Chart Supplement ↗
Runway lighting aids — 02: 2-light PAPI (left) · 20: 2-light PAPI (left) · 12: 4-light PAPI (left) · 30: 4-light PAPI (left) + MALSR.
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, Jet A
- Bottled oxygen
- HIGH
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Cargo, Charter, Instruction, Rental
Ownership & management 2 contacts
Remarks FAA · 11 notes
General
- BIRDS & WILDLIFE ON & INVOF ARPT.
- UNCTLD VEHICLES N SIDE RAMPS.
- TWY A, A1-A8 & C NORTH OF RWY 12/30 AVBL TO ACR MORE THAN 9 PAX SEATS.
- TWY F MIL USE ONLY.
- LINE OF SIGHT NA BTN INTERSECTING RWY ENDS.
- ARNG: OPS 1230Z-2330Z++ TUES-FRI. MIL F/W OR R/W PRKG OR SVC ON ARNG RAMP 24 HR PPR - 219-977-2017.
- FOR CD WHEN ATCT IS CLSD CTC CHICAGO APCH AT 847-289-0926.
Runways
- PCR VALUE: 121/R/C/X/U
- PCR VALUE: 706/R/C/X/U
- RWY 02/20 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS.
Lighting
- WHEN ATCT CLSD ACTVT MALSR RWY 30; REIL RWY 02, 12 & 20; MIRL RWY 02/20; HIRL RWY 12/30 - CTAF.
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Live METAR, flight category, and favored runway for KGYY — paste this into your website's HTML. It updates automatically and stays free.
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Nearby airports
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Also nearby: 05C Griffith-Merrillville Airport (6 NM) · 3HO Hobart Sky Ranch Airport (8 NM) · 3IN0 Flying M Airport (private) (13 NM) · IN70 Bodin Airport (private) (17 NM) · 0II8 Sutton's Field (private) (18 NM)
About KGYY
Gary/Chicago International Airport (GYY · KGYY) is an airport in Gary, IN, at 597 ft MSL. It has 2 runways, the longest 8,859 ft, with a control tower. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KGYY, refreshed from the Aviation Weather Center and FAA NASR.
Does KGYY have a control tower?
Yes. Gary/Chicago International Airport has an operating FAA control tower. See the Comms & NavAids section for tower and ground frequencies.
What is the longest runway at KGYY?
Gary/Chicago International Airport has 2 runways; the longest is 8,859 ft. See the Runways section for headings, surface, and lighting.
Where is KGYY?
Gary/Chicago International Airport is in Gary, IN, at an elevation of 597 ft MSL. Coordinates: 41.6171, -87.4132.
Fly out of KGYY often?
Save KGYY as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KGYY in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.