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1S1 Eckhart International Airport
Porthill, Idaho, USA

GOING TO PORTHILL?

FAA INFORMATION EFFECTIVE 30 OCTOBER 2025

Location

FAA Identifier: 1S1
Lat/Long: 48-59-25.7000N 116-30-07.4000W
48-59.428333N 116-30.123333W
48.9904722,-116.5020556
(estimated)
Elevation: 1758 ft. / 536 m (estimated)
Variation: 20E (1985)
Time zone: UTC -7 (UTC -8 during Standard Time)
Zip code: 83853

Airport Operations

Airport use: Open to the public
Activation date: 09/1968
Control tower: no
ARTCC: SEATTLE CENTER
FSS: BOISE FLIGHT SERVICE STATION
NOTAMs facility: BOI (NOTAM-D service available)
Attendance: UNATNDD
Wind indicator: yes
Segmented circle: yes
NON STD - SEMI CIRCLE.
International operations: customs landing rights airport

Airport Communications

CTAF/UNICOM: 122.8
WX AWOS-3PT at 65S (18 nm SE): 132.575 (208-267-3995)

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
YXCr190/37.6CRANBROOK VOR/DME112.1016E

Airport Services

Parking: tiedowns
Airframe service: NONE
Powerplant service: NONE
Bottled oxygen: NONE
Bulk oxygen: NONE

Runway Information

Runway 15/33

Dimensions: 3650 x 175 ft. / 1113 x 53 m
Surface: turf, in good condition
Runway edge markings: 15/33 EDGES AND THRS MARKED WITH WHITE ROCKS.
Operational restrictions: RCMD LAND RWY 33; TKOF RWY 15 WHEN WIND COND PERMITS.
RUNWAY 15  RUNWAY 33
Latitude: 48-59.724923N48-59.132682N
Longitude: 116-30.198510W116-30.048770W
Elevation: 1758.0 ft.1748.0 ft.
Traffic pattern: leftleft
Runway heading: 151 magnetic, 171 true331 magnetic, 351 true
Obstructions: 75 ft. trees, 675 ft. from runway, 9:1 slope to clear
NMRS OBSTNS IN APCH TO RWY 15: 50 FT - 75 FT + TREES AT 675 FT ON CNTRLN; 40 FT PWR LINE AT 1200 FT ON CNTRLN.		16 ft. road, 300 ft. from runway, 18:1 slope to clear

Airport Ownership and Management from official FAA records

Ownership: Publicly-owned
Owner: STATE OF ID, ITD DIV AERO
BOX 7129
BOISE, ID 83707-1129
Phone 208-334-8775
Manager: DIVISION ADMIN
BOX 7129
BOISE, ID 83707-1129
Phone 208-334-8775

Additional Remarks

- NO WINTER MAINTENANCE.
- ACFT PRKG LTD TO TWO HRS IN CUST TRML AREA; LONGER TERM PRKG AVBL TO THE WEST OF RWY END 15 - BTN ASPH TWY & ANHEUSER-BUSCH PLANT.
- RWY 15 DO NOT USE ASPH TWY PTN FOR TKOF.
- +25' HOP POLES LOCATED ADJACENT TO BOTH SIDES OF RWY.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.

Instrument Procedures

There are no published instrument procedures at 1S1.

Some nearby airports with instrument procedures:

65S - Boundary County Airport (18 nm SE)
KSZT - Sandpoint Airport (42 nm S)
S59 - Libby Airport (58 nm SE)
KDEW - Deer Park Airport (72 nm SW)
KCOE - Coeur d'Alene Airport - Pappy Boyington Field (74 nm S)
  
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Area around 1S1 (Eckhart International Airport)
 
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Aerial photo of 1S1 (Eckhart International Airport)
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From to 1S1

Sunrise and sunset
Times for 30-Oct-2025
 Local
(UTC-7)		 Zulu
(UTC)
Morning civil twilight06:5813:58
Sunrise07:3114:31
Sunset17:2800:28
Evening civil twilight18:0101:01

Current date and time
Zulu (UTC)  31-Oct-2025 00:53:13
Local (UTC-7)  30-Oct-2025 17:53:13
 
METAR
CWJR 
5nm N 		310000Z AUTO 26002KT 05/02 RMK AO1 SLP285 T00480015 57010
K65S 
18nm SE 		310015Z AUTO 00000KT 9SM CLR 04/02 A3029 RMK AO2
TAF
CYXC 
47nm NE 		301840Z 3019/3107 VRB03KT P6SM FEW040 SCT240 BECMG 3021/3023 19005KT RMK NXT FCST BY 310100Z
CYCG 
47nm W 		310017Z 3100/3104 01005KT P6SM SCT020 BKN040 TEMPO 3100/3104 BKN020 RMK NXT FCST BY 310100Z
NOTAMs
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