Airport information
- FAA LID
- 4IS9
- Coordinates
- 39.0859, -89.9589
- Elevation
- 667 ft MSL
- Magnetic variation
- 2E
- Sectional chart
- ST LOUIS
- Airport use
- Private
- Control tower
- No
- ARTCC
- KANSAS CITY (ZKC)
- Flight service (FSS)
- SAINT LOUIS
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1967/03
- Distance from city
- 3 N
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 | 05:02 AM | 10:02Z |
| Sunrise | 05:34 AM | 10:34Z |
| Sunset | 08:29 PM | 01:29Z |
| Evening civil twilight Loggable night begins | 09:01 PM | 02:01Z |
Plan a flight from 4IS9
Traffic pattern
- Landing
- Rwy 09
- Pattern
- left (turns left)
- TPA
- 1,700 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 09 at 1,700 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 09/27
2,769 ft × 100 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
- Approach obstacle
- Pline, 25 ft, 741 ft from threshold
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 2,769 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| TOY · Troy | VORTAC | 116.00 | r351° / 20.9 NM |
| CSX · Cardinal | VOR-DME | 116.45 | r043° / 27.4 NM |
| STL · St Louis | VORTAC | 117.40 | r060° / 27.9 NM |
| SKE · Scott | TACAN | 112.20 | r349° / 32.8 NM |
| VLA · Vandalia | VORTAC | 114.30 | r266° / 37.1 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4IS9. VFR sectional link above.
Services
- Airframe service
- MINOR
- Powerplant service
- MINOR
Ownership & management
Remarks FAA
- FOR CD CTC ST LOUIS APCH AT 314-890-1018.
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 4IS9 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 4IS9
Weidner Airport (4IS9) is an airport in Bunker Hill, IL, at 667 ft MSL. It has 1 runway, the longest 2,769 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4IS9, refreshed from the Aviation Weather Center and FAA NASR.
Does 4IS9 have a control tower?
No. Weidner Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4IS9?
Weidner Airport has 1 runway; the longest is 2,769 ft. See the Runways tab for headings, surface, and lighting.
Where is 4IS9?
Weidner Airport is in Bunker Hill, IL, at an elevation of 667 ft MSL. Coordinates: 39.0859, -89.9589.
Fly out of 4IS9 often?
Save 4IS9 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.