The Florida Keys Marathon International (KMTH)
Non-towered public-use airport serving Marathon, Florida, at 7 ft elevation.
Elevation7 ft
ControlNon-towered
Longest runway5,008 ft
Magnetic variation4° W
On the field: flight training, aircraft rental (as listed in FAA data). Find flight schools in Florida.
Live weather
Forecast (TAF)
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Frequencies
| AWOS/ASOS | 135.525 |
|---|---|
| CTAF | 122.975 |
| UNICOM | 122.975 |
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 07/25 | 5,008 × 100 ft | Asphalt | Medium intensity |
Fuel: 100LL, A1+. Sectional: Miami.
Nearby airports
KEYWKey West International40 NM WX51Miami Homestead General Aviation54 NM NEKTMBMiami Executive65 NM NEKTNTDade-Collier Training And Transition69 NM NX01Everglades Airpark70 NM NKMIAMiami International76 NM NE
Before you fly here
- Read the FAA Chart Supplement entry for MTH: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around KMTH for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 2000. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.