SkyReady

Airports › Michigan › KPHN › Frequencies

St Clair County International Airport frequencies

Radio frequencies for St Clair County International Airport (PHN · KPHN) in Port Huron, MI — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

Tower & ground

ASOS/AWOS118.375
CTAF123.05
UNICOM123.05
Flight service126.525 (HIGH)

Approach & departure Selfridge

App/Dep119.6
By procedure & sector (2 more)
285.525ALGONAC RCAG (HIGH)
391.9APCH/P DEP/P

Frequencies from FAA NASR. For planning and education only; always verify against official sources.