The Florida Keys Marathon International
MTH · KMTH · Marathon, Florida · Monroe County · map
The Florida Keys Marathon International is a public-use airport owned by Monroe County, 3 miles east of Marathon, Florida, 7 feet above sea level. Its one runway, 07/25, is 5,008 feet of asphalt. It has fuel (100LL avgas, Jet A-1 with additive) and about 66 general-aviation aircraft based on the field by the FAA's count. The FAA counts about 47,263 takeoffs and landings a year. About 157 passengers boarded flights here in the FAA's fiscal year 2024.
Quick answers answers refresh every morning
What is the airport code for The Florida Keys Marathon International?
Its FAA code is MTH, and its ICAO code is KMTH.
Where is The Florida Keys Marathon International?
It is 3 miles east of Marathon, Florida, 7 feet above sea level.
How long is the runway at The Florida Keys Marathon International?
Its one runway, 07/25, is 5,008 feet long, asphalt.
Does The Florida Keys Marathon International have a control tower?
No, it has no control tower.
What fuel can you buy at The Florida Keys Marathon International?
The FAA's airport file lists 100LL avgas, Jet A-1 with additive.
Where can you fly nonstop from The Florida Keys Marathon International?
Airline flights go to 8 airports, the busiest of them Fort Lauderdale/Hollywood International, Key West International, Springfield Robertson County, Miami International, Nashville. Every route
Are there flight schools at The Florida Keys Marathon International?
One flight school, flying club or college flight programme is based within about 15 miles of it: Florida Keys Flight Academy LLC. Compare them
Where are the nearest FAA examiners to The Florida Keys Marathon International?
3 aviation medical examiners work within 50 nautical miles. See them by name
Weather and planning now, the forecast, warnings, pilot reports, winds aloft, restrictions
Fetching the weather now, the forecast, the warnings in force, pilot reports and the winds aloft for The Florida Keys Marathon International…
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
The airport facts, runways, radio, fuel and services, the FAA's remarks
The airport
- Codes
- FAA MTH · ICAO KMTH
- Kind
- Airport · open to the public · publicly owned
- Owner
- Monroe County
- Elevation
- 7 feet above sea level
- Control tower
- No control tower
- Attended
- every day, 8:00 am to 6:00 pm
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel and services
- 100LL avgas, Jet A-1 with additive; the services card below
- Notes
- certified for airline service (Part 139)
- On the chart
- Miami sectional
- Magnetic variation
- 4W
- In the FAA's files since
- March 1944
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 07/25 | 5,008 × 100 ft | Asphalt, excellent | Medium-intensity lights |
- Runway 07: PAPI, four lights on the left, tree 40 ft high 1,700 ft from the end
- Runway 25: PAPI, four lights on the left, tree 65 ft high 2,440 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) · UNICOM | 122.975 | |
| Key West Center (remote transmitter) Low | 133.5 | |
| Mth and automated weather (ASOS) | 135.525 |
Automated weather (ASOS), by phone 305-743-8373.
Fuel and services as reported to the FAA
- Fuel
- 100LL avgas, Jet A-1 with additive
- Repairs
- airframe and engine: minor repairs
- Parking
- tie-downs
- Oxygen
- bottled oxygen (high- and low-pressure), bulk oxygen (high- and low-pressure)
- Also here
- crop spraying, flight instruction, aircraft rental, aircraft sales
Other fields with jet fuel nearby: Key West International (40 nm west).
The FAA's file records what is sold and done at the field, as the airport manager reports it, not who sells it or the price; fuel sellers (FBOs) are not named in any public file. Airports selling jet fuel in Florida · avgas.
The FAA's remarks as written in the airport file, spelled out
- Existed prior to 1959.
- 48 hour prior permission required for unscheduled part 121 operations with gtr than 30 passenger seats.
- Activate runway end identifier lights runway 07; PAPI runway 07 and 25; medium-intensity runway lights runway 07/25 - the common traffic frequency.
- Noise sens area; use nbaa noise abatement procedure; local ordinance rqr eng runup in dsgnd area on commercial or the FBO (fixed-base operator) ramp from 11:00 pm to 7:00 am and fines.
- Birds on and in the vicinity of airport.
- Self service fuel H24.
- Aircraft must use taxiway A4 for runway 25 full length departure, no runway aces beyond txy A4.
Flights and activity in the air now, the airlines, based aircraft, takeoffs and landings
Activity now checking the volunteer receiver network…
Within ten miles
- Looking…
Arrivals and departures, last hour
- Looking…
From the volunteer receiver network, a few minutes behind at most; aircraft whose owners asked the FAA not to be displayed are left out; no person is named. Open the live map here.
Scheduled and charter flights from here the DOT's airline reports · August 2025 to July 2026
Airlines reported 258 departures from MTH in those twelve months, carrying 64 passengers in 453 seats (14% filled), to 19 destinations (3 abroad) on 4 airlines.
All 19 destinations, the airlines and the aircraft, month by month
From the Bureau of Transportation Statistics' T-100 table: every segment an airline reported flying, three months in arrears. Private, business and training flights are not in it; the live picture is in the activity card.
Based aircraft as counted for the FAA, fiscal year 2024
Based aircraft, as a table
| aircraft | |
|---|---|
| single-engine | 47 |
| multi-engine | 8 |
| jets | 1 |
| helicopters | 10 |
The FAA's count is the general-aviation aircraft kept on the field (singles, twins, business jets, helicopters) from its Terminal Area Forecast, the latest year with an actual count; airline fleets are never counted as based anywhere, so a big airline airport shows a small number. The register section below shows how many aircraft are registered to owners in town, a different measure again.
Takeoffs and landings a year about 47,263, the FAA's fiscal year 2024 (October 2023 to September 2024)
Takeoffs and landings, as a table
| a year | |
|---|---|
| general aviation, travelling | 20,717 |
| general aviation, local | 26,001 |
| military | 545 |
Local flights stay in the traffic pattern or nearby, often practice; travelling flights arrive from or leave for somewhere else. Counts at airports without a tower are the FAA's estimates. How this compares nationally: Airports by the numbers.
Who flies and works here aircraft registered in town, the companies, the examiners nearby
Aircraft registered in Marathon from the FAA register
46 aircraft are registered to owners in Marathon, Florida: 33 piston singles, 8 helicopters, 3 piston twins, 2 weight-shift and powered parachutes. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Companies and organisations in town with two or more aircraft:
Individuals are counted, not named (the site's policy at this time). All aircraft registered in Florida.
Who works here from the FAA's certificate lists and the register
Flight schools, flying clubs and college flight programmes based within about 15 miles:
- Florida Keys Flight Academy LLC 10 aircraft · Marathon Florida Keys Flight Academy is a flight school in Marathon and Key West, Florida, offering FAA-compliant pilot training under Part 61 and Part 141 syllabi, ranging from private pilot licenses to certified flight instructor ratings.
Repair stations in Marathon:
- Air Alliance INC Air Alliance, Inc.
Companies in the same town as this airport, and schools within about 15 miles of it (each placed at the main public airport of its town, or at the town's centre); not every one of them works from this field. All operators · all repair stations · all flight schools · all FBOs.
Examiners and inspectors nearby designated by the FAA · within 50 nautical miles
No pilot examiner is based within 50 nautical miles, as far as the FAA's list places them. Also nearby: 3 aviation medical examiners, 1 training center examiner.
All 4 nearby, by kind, with contact details
What each kind does
- AME: Aviation Medical Examiner: a doctor who issues the medical certificates pilots must hold.
- DCTO-E: Designee at a certificated training organisation.
Designees are listed with the name and contact details the FAA publishes for them on its designee locator (read October 10, 2026): the FAA lists them so that pilots, mechanics and companies can find them. Private individuals are not named, the site's policy at this time. A designee who would rather not appear here can ask us through the contact address on the About page. Each designee is placed at the main public airport of the town the FAA lists (or the nearest one to its zip code), so "nearby" means the town, not an exact address. All examiners by state.
Safety record the NTSB's cases at or near this airport
Accidents and incidents at or near this airport NTSB records · 30 since 1982, 6 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English. The country as a whole: Where accidents happen.
Nearby within 30 nautical miles
Connections how this airport links to the rest of the register
- Aircraft registered in Marathon 46 aircraft · 33 piston singles, 8 helicopters, 3 piston twins
- Florida Keys Flight Academy LLC 10 aircraft in town
- Florida Keys Mosquito Control District 6 aircraft in town
- Florida Keys Flight Academy LLC 10 aircraft · flight school
- Air Alliance INC · repair station
- Fort Lauderdale/Hollywood International (FLL) 228 flights in twelve months · Federal Express Corporation, Tropic Ocean Airways LLC
- Key West International (EYW) 5 flights in twelve months · Federal Express Corporation, Tradewind Aviation
- Springfield Robertson County (M91) 3 flights in twelve months · CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle
- Miami International (MIA) 3 flights in twelve months · Tropic Ocean Airways LLC
- Nashville (TN8) 3 flights in twelve months · CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle
- Bimini (NSB) 2 flights in twelve months · Tropic Ocean Airways LLC
- Venice Municipal (VNC) 2 flights in twelve months · CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle
- Naples Municipal (APF) 1 flights in twelve months · CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle
- NTSB accidents and incidents at or near this airport 30 since 1982 · 6 fatal
- Accidents and incidents in Florida 6,103 since 1982 · 984 in the last ten years
- Nearby landing places within 30 nautical miles 6 airports, heliports and seaplane bases
- Public-use airports in Florida 128 landing places
- Florida 21,705 aircraft registered
The whole map of how records connect · these connections as data: /graph/airport/MTH.json.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 26, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.