St Alphonsus HeliportPrivate
ID91 · Boise, ID · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-22 · night begins 08:11 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 07:03 AM | 13:03Z |
| Sunrise | 07:32 AM | 13:32Z |
| Sunset | 07:43 PM | 01:43Z |
| Evening civil twilight Loggable night begins | 08:11 PM | 02:11Z |
Plan a flight from ID91
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 25 ft |
Prefer one flat page? Full runway details for ID91 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the ID91 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
BOI 113.30 · MUO 114.00
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| BOI · Boise | VORTAC | 113.30 · 80X | High | r303° / 4.7 NM |
| MUO · Mountain Home | TACAN | 114.00 · 87X | — | r321° / 38.3 NM |
Prefer one flat list? All ID91 frequencies →
Charts & procedures
No published instrument procedures or Chart Supplement for ID91 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- ID91
- Coordinates
- 43.6136, -116.2614
- Elevation
- 2,800 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- SALT LAKE CITY
- Airport use
- Private
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- BOISE · 122.6 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Beacon
- white-green-yellow
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1971/11
- Distance from city
- 0 N
Night operations
- Airport lighting
- SS-SR
- Rotating beacon
- white-green-yellow
- Pilot-controlled lighting
- Usually keyed on CTAF 123.075 — confirm the click sequence in the Chart Supplement
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management 2 contacts
Remarks FAA · 3 notes
General
- FOR CD CTC BIG SKY APCH AT 208-364-5860/5861.
Runways
- ROOFTOP
Obstructions
- 15 FT LGTD ANT 50 FT FM HELIPAD.
Nearby airports
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Also nearby: ID49 St Luke's Boise Medical Center (private) (3 NM) · 90ID St Luke's Meridian Medical Center (private) (4 NM) · 14ID Peaceful Cove (private) (4 NM) · 52ID Eagle Hills (private) (8 NM) · 77ID Ashley (private) (8 NM)
About ID91
St Alphonsus (ID91) is a heliport in Boise, ID, at 2,800 ft MSL. It has 1 runway, the longest 25 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for ID91, refreshed from the Aviation Weather Center and FAA NASR.
Does ID91 have a control tower?
No. St Alphonsus is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at ID91?
St Alphonsus has 1 runway; the longest is 25 ft. See the Runways section for headings, surface, and lighting.
Where is ID91?
St Alphonsus is in Boise, ID, at an elevation of 2,800 ft MSL. Coordinates: 43.6136, -116.2614.
More about ID91
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 ID91 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.
Something here wrong or out of date? Report a data problem.