Florida Keys Marathon International Airport
KMTH has 1 runway. The longest is 7/25 at 5,008 ft × 100 ft (asphalt).
FAA NASR data, cycle 2026-09-03
KMTH field elevation is 5 ft MSL. The standard traffic pattern altitude at KMTH is 1,010 ft MSL (1,000 ft AGL). Fuel available at KMTH: 100LL, Jet A-1+.
FAA NASR data, cycle 2026-09-03
CTAF 122.975 MHz — KMTH is non-towered; self-announce position and intentions on CTAF.
Check KMTH against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, KMTH is a non-towered airport. The CTAF frequency is 122.975 MHz.
The ASOS frequency at KMTH (Florida Keys Marathon International Airport) is 135.525 MHz.
KMTH has 1 runway (7/25). The longest runway is 5,008 feet.
KMTH uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,010 feet MSL at a field elevation of 5 feet.
Yes. KMTH (Florida Keys Marathon International Airport) has 100LL, Jet A-1+ available. Call the field for hours, self-serve availability and price.
KMTH (Florida Keys Marathon International Airport) has a field elevation of 5 feet MSL.
KMTH (Florida Keys Marathon International Airport) is located in Marathon, FL.