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Florida Keys Marathon International Airport
MTH · KMTH · Marathon, FL · 5 ft elevation · var 4W · Towered
Airport information
- ICAO / IATA
- KMTH / MTH
- Coordinates
- 24.7260, -81.0514
- Elevation
- 5 ft MSL
- Magnetic variation
- 4W
- Sectional chart
- MIAMI
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- MIAMI (ZMA)
- Flight service (FSS)
- MIAMI
- NOTAM facility
- MTH
- Attendance
- ALL 0800-1800
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1944/03
- Distance from city
- 3 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:10 AM | 10:10Z |
| Sunrise | 06:36 AM | 10:36Z |
| Sunset | 08:16 PM | 00:16Z |
| Evening civil twilight Loggable night begins | 08:42 PM | 00:42Z |
Loggable night (§1.1)
08:42 PM → 06:10 AM
Night currency (§61.57)
09:16 PM → 05:36 AM
Plan a flight from KMTH
Runway 07/25
5,008 ft × 100 ft · Asphalt (Excellent) 07
- Heading
- 071° mag · 67° true
- Markings
- nonprecision
- VGSI
- 4-light PAPI (left) (3°)
- Traffic pattern
- Left
25
- Heading
- 251° mag · 247° true
- Markings
- nonprecision
- VGSI
- 4-light PAPI (left) (3°)
- Traffic pattern
- Left
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| ASOS | 135.525 | |
| CNTR | 133.5 | MIAMI CNTR |
| RDO | 122.6 | MIAMI RDO |
| UNIC | 122.8 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| NQX · Key West | TACAN | 113.10 | r078° / 35.5 NM |
Airport diagram
Open PDF ↗Preview diagram
Approaches
- RNAV (GPS) RWY 07 ↗ · amdt 0B
- RNAV (GPS) RWY 25 ↗ · amdt 1B
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A-1 (additive)
- Bottled oxygen
- HIGH/LOW
- Bulk oxygen
- HIGH/LOW
- Airframe service
- MINOR
- Powerplant service
- MINOR
- Parking
- tiedowns
- Other services
- Agricultural, Instruction, Rental, Aircraft sales
Ownership & management
Owner
MONROE COUNTY
500 WHITEHEAD ST, KEY WEST, FL
305-296-5439
Manager
MICHAEL LEGERE
9400 OVERSEAS HWY SUITE 200, MARATHON, FL
305-289-6302
Remarks FAA
- EXISTED PRIOR TO 1959.
- 48 HR PPR FOR UNSKED PART 121 OPS WITH GTR THAN 30 PAX SEATS.
- NOISE SENS AREA; USE NBAA NOISE ABATEMENT PROC; LCL ORDINANCE RQR ENG RUNUP IN DSGND AREA ON COML OR FBO RAMP FM 2300-0700 & FINES.
- BIRDS ON & INVOF ARPT.
- FOR CD IF UNA TO CTC ON FSS FREQ, CTC MIAMI ARTCC AT 305-716-1731.
- SELF SVC FUEL H24.
- USCBP USER FEE FAC OPEN THUR-MON 0900-1730. CLSD TO ARRS TUE AND WED EXCEPT ON REQ AND APVL BY USCBP. CTC USCBP AT 305-289-2029. SEE SPL NOTICES - U.S. SPL CUST REQUIREMENT.
- 24 HR PPR FOR ACFT EQUIPPED WITH WEATHER MODIFICATION OR GEOENGINEERING EQPT 305.289.6302.
- ACFT MUST USE TWY A4 FOR RWY 25 FULL LEN DEP, NO RWY ACES BYD TXY A4.
- ACTVT REIL RWY 07; PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF.
- AFT HR JET-A FUEL - 305-481-7615.
- PCR VALUE: 200/F/A/X/T
Nearby airports
FD51 · Summerland Key Cove AirportPrivate (22 NM)7FA1 · Sugar Loaf Shores AirportPrivate (29 NM)FA81 · Tavernaero Park AirportPrivate (33 NM)KNQX · Naval Air Station Key West/Boca Chica FieldPrivate (36 NM)KEYW · Key West International Airport (40 NM)X51 · Miami Homestead General Aviation Airport (54 NM)
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KMTH in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.