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Florida Keys Marathon International Airport frequencies

Radio frequencies for Florida Keys Marathon International Airport (MTH · KMTH) in Marathon, FL — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

Tower & ground Marathon

ASOS/AWOS135.525
CTAF122.975
UNICOM122.975
Flight service122.6, 133.5 (LOW)
By procedure & sector (2 more)
306.9KEY WEST RCAG (LOW/HIGH)
323.1KEY WEST RCAG (LOW/HIGH)

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