Airports · Idaho · heliport · FAA file effective October 1, 2026

St. Alphonsus Heliport

ID91 · Boise, Idaho · Ada County · map

St. Alphonsus Heliport is a private heliport in Boise, Idaho, 2,800 feet above sea level. Its landing pad, H1, is 25 by 25 feet of concrete.

Private use: permission from the owner is required before landing here.

The airport

Codes: FAA ID91
Kind: Heliport · private use, permission required · privately owned
Elevation: 2,800 feet above sea level
Control tower: No control tower
Attended: unattended
Lights: runway lights sunset to sunrise
Repairs: airframe: none; engine: none
On the chart: Salt Lake City sectional
Magnetic variation: 17E
In the FAA's files since: November 1971

This airport's record at the FAA

Landing pad

Runways drawn to scale from the FAA's positions, north up.

For understanding the field, not for navigation.

Pad	Length × width	Surface	Lights
H1	25 × 25 ft	Concrete, poor	Perimeter lights

Radio frequencies

UNICOM

123.075

Aircraft registered in Boise from the FAA register

599 aircraft are registered to owners in Boise, Idaho: 423 piston singles, 66 turboprops, 48 business jets, 20 helicopters, 20 balloons. Not every one of them is based at this heliport; the based-aircraft count above is the FAA's figure for this heliport alone.

Companies and organisations in town with two or more aircraft:

United States Department of Interior 22 Usda Forest Service 19 Pnc Bank Na 18 US Department of the Interior 14 U S Department of the Interior 12 Turbo Air Charter LLC 8 Lighter Than Air America INC 7 Usda Forest Service Fire & Aviation 6 Forbes Aviation LLC 6 Western Aircraft INC 5

Individuals are counted, never named. All aircraft registered in Idaho.

Accidents and incidents at or near this heliport NTSB records

No NTSB accident or incident records name this heliport.

Nearby within 30 nautical miles

Boise Air Trml/Gowen Field BOI · 3 nm southeast Nampa Municipal MAN · 12 nm west Caldwell Executive EUL · 16 nm west Emmett Municipal S78 · 19 nm northwest Idaho City Usfs Airport U98 · 22 nm northeast Murphy Airport 1U3 · 27 nm southwest Homedale Municipal S66 · 29 nm west St. Luke'S Boise Medical Center Heliport ID49 · 3 nm east · private

The FAA's remarks as written in the airport file

Medical use.
15 feet lighted ant 50 feet from helipad.
Rooftop

Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.