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KMTH

MTH

The Florida Keys Marathon Airport · Marathon

Key Facts

Technical summary and operational standards.

ILS Approach StatusILS DATA NOT IN DATABASE

Field Elevation

5 ft / 2 m

Transition Altitude

18,000 ft

Primary Channel

RDO 122.60 MHz (MIAMI RDO)

Runway Summary

07/255,008 ftAsphaltLIGHTED

Details Runways Frequencies Navaids Nearby

Mission Briefing & Tools

Direct calculators and pre-filled resources for this airport.

SkyVector FlightAware Live METAR Satellite

Less math, more flying. Did this save your approach? 🛬

Briefing for The Florida Keys Marathon Airport (KMTH), United States. This facility features 1 active runways with an elevation of 5 ft. This field primarily supports visual approach procedures.Maintain a Transition Altitude of 18,000 ft for altimeter reset.

Airport Details

Full geographical and organizational metadata.

Full Name

The Florida Keys Marathon Airport

ICAO / IATA

KMTH / MTH

Municipality

Marathon

Country

Region

US-FL

GPS Coordinates

24.726101, -81.051399

Transition Altitude

18,000 ft

Official Website

Wikipedia

Runways & ILS Approach Data

Detailed dimensions and verified landing frequencies.

Runway 07 / 25

LIGHTED

Crosswind 07 Crosswind 25 TOD VDP

Length: 5,008 ft / 1,526 m
Surface: Asphalt
Heading: 67° / 247°

RWY 07

No ILS

RWY 25

No ILS

Nearby Navaids

VOR, NDB, DME stations in the vicinity.

MTH · NDB (Marathon)260 kHz

0 ft · Associated: None
24.711901, -81.095299

Communication Frequencies

ATC and advisory channels.

ASOS ASOS

135.53 MHz

CNTR MIAMI CNTR

133.50 MHz

RDO MIAMI RDO

122.60 MHz

UNIC CTAF/UNICOM

122.80 MHz

Nearby Airports

Alternatives in the vicinity.

Naval Air Station Key West/Boca Chica Field

Key West International Airport

Miami Homestead General Aviation Airport

Homestead ARB Airport

Miami Executive Airport

Data Source: OurAirports · Technical Briefing Jan 2026
ILS Data Source: AIP / FAA NASR Cycle Verified