Airport information
- FAA LID
- 4IL9
- Coordinates
- 40.8275, -89.1208
- Elevation
- 745 ft MSL
- Sectional chart
- CHICAGO
- Airport use
- Private
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- KANKAKEE
- Attendance
- IREG
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2004/09
- Distance from city
- 2 S
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:51 AM | 09:51Z |
| Sunrise | 05:25 AM | 10:25Z |
| Sunset | 08:31 PM | 01:31Z |
| Evening civil twilight Loggable night begins | 09:05 PM | 02:05Z |
Plan a flight from 4IL9
Traffic pattern
- Landing
- Rwy 18
- Pattern
- left (turns left)
- TPA
- 1,700 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 18 at 1,700 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 18/36
2,280 ft × 140 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Displaced threshold
- 140 ft
- Heading
- 290° true
- Traffic pattern
- Left
- Displaced threshold
- 530 ft
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 18/36 | 2,280 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PNT · Pontiac | VOR-DME | 109.60 | r268° / 17.6 NM |
| BMI · Bloomington | VOR-DME | 108.20 | r335° / 22.5 NM |
| BDF · Bradford | VORTAC | 114.70 | r133° / 29.1 NM |
| PIA · Peoria | VORTAC | 115.20 | r070° / 31.8 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4IL9. VFR sectional link above.
Ownership & management
Remarks FAA
- PRVDD CLEAR 20:1 APCHS.
- 265 FT TWR 800 FT SSE OF ARPT AND 393 FT 1/2 NM SW OF ARPT.
- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
- DSPLCD THLDS RYS 18 & 36 ARE MARKED WITH TIRES PAINTED WHITE.
Nearby airports
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 4IL9 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.
About 4IL9
Unzicker Airport (4IL9) is an airport in Benson, IL, at 745 ft MSL. It has 1 runway, the longest 2,280 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4IL9, refreshed from the Aviation Weather Center and FAA NASR.
Does 4IL9 have a control tower?
No. Unzicker Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4IL9?
Unzicker Airport has 1 runway; the longest is 2,280 ft. See the Runways tab for headings, surface, and lighting.
Where is 4IL9?
Unzicker Airport is in Benson, IL, at an elevation of 745 ft MSL. Coordinates: 40.8275, -89.1208.
Fly out of 4IL9 often?
Save 4IL9 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.