Airport information
- FAA LID
- 1S3
- Coordinates
- 46.2711, -106.6240
- Elevation
- 2,727 ft MSL
- Magnetic variation
- 9E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3PT · 121.125 · ☎ 406-346-2571
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- IREG
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Access
- Military landing rights
- Activated
- 1943/09
- Distance from city
- 3 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:35 AM | 10:35Z |
| Sunrise | 05:14 AM | 11:14Z |
| Sunset | 09:02 PM | 03:02Z |
| Evening civil twilight Loggable night begins | 09:41 PM | 03:41Z |
Plan a flight from 1S3
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- MIRL RY 09/27 OPERS DUSK-2200; AFT 2200 ACTVT - CTAF. ACTVT PAPI RYS 09 & 27 - CTAF. on 122.8 — 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 08 · 087°
- Pattern
- left (turns left)
- TPA
- 3,700 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 08 at 3,700 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 08/26
4,799 ft × 75 ft · ASPH-G- Heading
- 087° mag · 96° true
- Heading
- 267° mag · 276° true
| Runway | Length | Your margin |
|---|---|---|
| 08/26 | 4,799 ft |
Communication frequencies
Tower & ground · “Miles City”
| ASOS/AWOS | 121.125 |
| CTAF | 122.8 |
| UNICOM | 122.8 |
| Flight service | 122.2 · 126.85 (LOW) |
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 305.2 | MILES CITY RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MLS · Miles City | VORTAC | 112.10 | r242° / 28.6 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Instruction
Ownership & management
Remarks FAA
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- MIRL RY 09/27 OPERS DUSK-2200; AFT 2200 ACTVT - CTAF. ACTVT PAPI RYS 09 & 27 - CTAF.
- HOME 406-346-7129.
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 1S3 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 1S3
Tillitt Field (1S3) is an airport in Forsyth, MT, at 2,727 ft MSL. It has 1 runway, the longest 4,799 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 1S3, refreshed from the Aviation Weather Center and FAA NASR.
Does 1S3 have a control tower?
No. Tillitt Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 1S3?
Tillitt Field has 1 runway; the longest is 4,799 ft. See the Runways tab for headings, surface, and lighting.
Where is 1S3?
Tillitt Field is in Forsyth, MT, at an elevation of 2,727 ft MSL. Coordinates: 46.2711, -106.6240.
Fly out of 1S3 often?
Save 1S3 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.