← All airports
Siskiyou County Airport
SIY · KSIY · Montague, CA · 2,648 ft elevation · var 19E · Towered
Airport information
- ICAO / IATA
- KSIY / SIY
- Coordinates
- 41.7814, -122.4680
- Elevation
- 2,648 ft MSL
- Magnetic variation
- 19E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- RANCHO MURIETA
- NOTAM facility
- SIY
- Attendance
- ALL 0800-1700
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1943/09
- Distance from city
- 3 NE
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night 2026-06-20
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:01 AM | 12:01Z |
| Sunrise | 05:35 AM | 12:35Z |
| Sunset | 08:48 PM | 03:48Z |
| Evening civil twilight Loggable night begins | 09:22 PM | 04:22Z |
Loggable night (§1.1)
09:22 PM → 05:01 AM
Night currency (§61.57)
09:48 PM → 04:35 AM
Plan a flight from KSIY
Runway 17/35
7,490 ft × 150 ft · Asphalt (Good) 17
- Heading
- 172° mag · 191° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
35
- Heading
- 352° mag · 11° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Right
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| ASOS | 121.125 | |
| CNTR | 124.85 | SEATTLE CNTR |
| RDO | 122.4 | RANCHO RDO |
| UNIC | 123 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| FJS · Fort Jones | VOR-DME | 109.60 | r018° / 25 NM |
| LMT · Klamath Falls | VORTAC | 115.90 | r219° / 39.9 NM |
Approaches
- NDB OR GPS-A ↗ · amdt 7B
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- Jet A
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
- Other services
- Agricultural, Charter
Ownership & management
Owner
SISKIYOU COUNTY
190 GREENHORN ROAD, YREKA, CA
530-842-8259
Manager
ADAM FILIPPONE
190 GREENHORN ROAD, YREKA, CA
530-842-8259
Remarks FAA
- MIGRATORY FLOCKS OF WATERFOWL IN THE VICINITY OF ARPT DURING SPRING & FALL.
- USFS FIRE OPS MAY-SEP.
- BE ALERT FOR GLIDER OPS MAY-SEP.
- SENSITIVE AG CROPS ADJACENT TO RWY/TWY. ROTOCRAFT SHOULD AVOID OPERATING IN THESE AREAS.
- WILDLIFE IN THE VICINITY OF ARPT.
- FARMING ACTIVITIES AND EQUIPMENT INVOF RWYS AND TWYS.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
- ACTVT MIRL RY 17/35, PAPI RYS 17 AND 35, REIL RYS 17 AND 35 - CTAF.
- EMAIL: AFILIPPONE@CO.SISKIYOU.CA.US
- COUNTY ARPT OFC - YREKA, 530-842-8297.
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 KSIY in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.