1
Runway
1
Frequency
0
Procedures
0
NOTAMs
Quick Facts
FAA
ID91
Elevation
2,800 ft MSL
Runways
1
Frequencies
1
Tower
No
Fuel
N/A
Coordinates
43.614, -116.261
Airport Information
Facility Type
HELIPORT
Elevation
2,800 ft MSL
Control Tower
No
Fuel Types
None listed
ARTCC
SALT LAKE CITY
Coordinates
43.6136, -116.2615
Ownership
Private
Hours of Operation
Current Weather
METAR KBOI 220353Z 00000KT 10SM CLR 18/M03 A2994 RMK AO2 SLP120 T01831028
Flight Category
VFR
Wind
0° at 0 kt
Visibility
10+ SM
Temperature
18.3°C
Dewpoint
-2.8°C
Altimeter
1014.00 inHg
Cloud Cover
CLR
Nearest weather from KBOI (4 NM away)
Observed 2026-05-22 03:53Z
Nearby Weather Cameras
No camera at ID91. Showing nearest cameras.
Shafer Butte
North · Camera 1 · 4 cameras total
14 NM away
Pearl
NorthEast · Camera 2 · 4 cameras total
38 NM away
12 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| H1 | 25 ft | 25 ft | CONC | PERI |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| UNICOM | 123.075 | ST ALPHONSUS |
Active NOTAMs
No active NOTAMs for ID91.
Nearby Airports in Idaho
Nearest airports
- ID52 — 40 Acre Airstrip
Salmon
- ID52 — 40 ACRE AIRSTRIP
SALMON
- null — 45 Ranch Airport
Grand View
- null — 45 Ranch Old Airport
Grand View
- 30ID — 4Z RANCH
HAILEY
Idaho airports
ID91 Operational Overview
Location & Facility
ST ALPHONSUS (ID91) is a privately owned heliport restricted to private use located in BOISE, Idaho, United States. The field sits at an elevation of 2,800 feet above mean sea level (MSL) at coordinates 43.6136°N, 116.2615°W.
Helipads
ST ALPHONSUS has 1 helipad. The longest pad (H1) measures 25 feet by 25 feet with a conc surface.
Communications & Operations
ST ALPHONSUS is a non-towered (pilot-controlled) field. A total of 1 communication frequencies are published for this facility.
Weather Cameras
3 FAA Weather Cameras are available near ST ALPHONSUS, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at ST ALPHONSUS is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations.
Frequently Asked Questions
What is ID91?
ID91 is the ICAO identifier for ST ALPHONSUS, a public-use airport located in BOISE, Idaho, United States.
How many runways does ST ALPHONSUS have?
ST ALPHONSUS (ID91) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of ID91?
The field elevation of ST ALPHONSUS is 2,800 feet above mean sea level (MSL).
Is fuel available at ID91?
No fuel types are currently listed for ST ALPHONSUS. Contact the FBO directly for availability.
What are the current weather conditions at ID91?
The current flight category at ST ALPHONSUS is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at ID91?
There are currently no active NOTAMs for ST ALPHONSUS.
How do I access complete data for ID91?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for ST ALPHONSUS.
Where is ST ALPHONSUS located?
ST ALPHONSUS (ID91) is located in BOISE, Idaho, United States, at an elevation of 2,800 ft MSL.
Does ID91 have weather cameras?
ID91 does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.