Airport information
- FAA LID
- 4S5
- Coordinates
- 48.6264, -97.4392
- Elevation
- 837 ft MSL
- Magnetic variation
- 7E
- Sectional chart
- TWIN CITIES
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- GRAND FORKS · 1-800-WX-BRIEF
- NOTAM facility
- GFK
- Attendance
- MAY-SEP ALL DALGT; OCT-APR MON-FRI ON CALL
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1971/03
- Distance from city
- 1 NE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-22
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:45 AM | 09:45Z |
| Sunrise | 05:27 AM | 10:27Z |
| Sunset | 09:36 PM | 02:36Z |
| Evening civil twilight Loggable night begins | 10:18 PM | 03:18Z |
Plan a flight from 4S5
Night operations
- Airport lighting
- SEE RMK
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 17 · 173°
- Pattern
- left (turns left)
- TPA
- 1,800 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 17 at 1,800 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 17/35
2,600 ft × 50 ft · Asphalt (Fair)- Heading
- 173° mag · 180° true
- Threshold elev
- 835 ft
- Markings
- basic
- Traffic pattern
- Left
- Displaced threshold
- 280 ft
- Heading
- 353° mag · 0° true
- Threshold elev
- 837 ft
- Markings
- basic
- Traffic pattern
- Left
- Displaced threshold
- 70 ft
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 2,600 ft |
Communication frequencies
Tower & ground
| CTAF | 122.9 |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| HML · Humboldt | VORTAC | 112.40 | r212° / 19.3 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
- Other services
- Agricultural
Ownership & management
Remarks FAA
- CFM WINTER CONDS & SN REMOVAL 701-360-7926.
- RWY 17/35; EXPECT TURBULENCE WHEN EXECUTING CROSS-WIND LNDGS DUE TO TREE LINES.
- DEER AND BIRDS ON & INVOF APRT
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- ACTVT LIRL RY 17/35 - 122.9.
- NSTD LIRL DUE TO FIXTURES & LCTD 25 FT FROM RWY EDGE.
- 18 FT ROAD 100 FT FM THLD.
- 16 FT ROAD 20 FT FM THLD.
- DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
- DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
- 60 FT TREE LINE 340 FT L AND R OF CNTRLN AT RWY 17 END PENETRATES 7:1 TRNSL SFC WITH A 3:1 SLOPE.
- 50 FT TREE LINE 160 FT R OF CNTRLN AT RWY 35 END PENETRATES 7:1 TRNSL SFC WITH A 1:1 SLOPE.
- 18 FT ROAD 380 FT FM DSPLCD THLD.
- 16 FT ROAD 90 FT FM DSPLCD THLD.
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 4S5 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 4S5
St Thomas Municipal Airport (4S5) is an airport in St Thomas, ND, at 837 ft MSL. It has 1 runway, the longest 2,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4S5, refreshed from the Aviation Weather Center and FAA NASR.
Does 4S5 have a control tower?
No. St Thomas Municipal Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4S5?
St Thomas Municipal Airport has 1 runway; the longest is 2,600 ft. See the Runways tab for headings, surface, and lighting.
Where is 4S5?
St Thomas Municipal Airport is in St Thomas, ND, at an elevation of 837 ft MSL. Coordinates: 48.6264, -97.4392.
Fly out of 4S5 often?
Save 4S5 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.