1S1 — Eckhart International Airport, Bonners Ferry, ID

Non-ToweredBonners Ferry, ID • ICAO: K1S1 • 1,756' MSL

1S1 WeatherLive METAR & TAF

1S1 has 1 runway. The longest is 15/33 at 3,650 ft × 175 ft (turf).

15/33No runway lights3,650 ft × 175 ftTurf

FAA NASR data, cycle 2026-09-03

1S1 field elevation is 1,756 ft MSL. The standard traffic pattern altitude at 1S1 is 2,760 ft MSL (1,000 ft AGL).

Field elevation1,756 ft MSL

Pattern altitude2,760 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

CTAF 122.8 MHz — 1S1 is non-towered; self-announce position and intentions on CTAF.

CTAF122.8

UNICOM122.8

Check K1S1 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, 1S1 is a non-towered airport. The CTAF frequency is 122.8 MHz.

1S1 has 1 runway (15/33). The longest runway is 3,650 feet.

1S1 uses the standard traffic pattern altitude of 1,000 feet AGL — about 2,760 feet MSL at a field elevation of 1,756 feet.

1S1 (Eckhart International Airport) has a field elevation of 1,756 feet MSL.

1S1 (Eckhart International Airport) is located in Bonners Ferry, ID.