Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
The Florida Keys Marathon Airport (KMTH/MTH) — Marathon, United States
At a glance
- Operating hours
- 12:00–22:00 UTC
- Port of entry
- Yes, with conditions
- Fuel
- 100LL, Jet A-1+
- Runways
- 07/25
- Elevation
- 5 ft
Times in UTC. Reference only: verify with the AIP and NOTAMs.
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83%
Data Complete
43 of 52 points
Missing: Contacts
Section Breakdown
Basic Info
7/7
Runways
4/4
Frequencies
2/4
Operations
2/2
Fuel
1/1
Contacts
0/2
Additional Info
6/10
Observed Activity
· Oct 26
1 aircraft observed within 6 NM · busiest hour 17:00Z
2026-10-132026-10-26
Distinct ADS-B aircraft seen within 6 NM below 10,000 ft AGL per UTC day · community-feed coverage varies · not official movement totals
Data last updated:
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See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify
Basic Airport Information
- ICAO: KMTH
- Name: The Florida Keys Marathon Airport
- Type: medium_airport
- Category: Domestic
- Latitude: 24.726101
- Longitude: -81.051399
- Elevation: 5 ft
- Country: United States
- Municipality: Marathon
- IATA Code: MTH
- FAA Code: N/A
- FIR: N/A
- Timezone: America/New_York
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
Runway 07/25
- Designation: 07/25
- Dimensions: 1526x30m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: RNAV (GPS), VOR/DME
- Remarks: N/A
Frequencies
- Tower: N/A
- Ground: N/A
- Operations: 122.600 MHz
- Traffic/Approach: 133.500 MHz
- ATIS: 135.525 MHz
Operation Hours
Monday
12:00
–
22:00
Tuesday
12:00
–
22:00
Wednesday
12:00
–
22:00
Thursday
12:00
–
22:00
Friday
12:00
–
22:00
Saturday
12:00
–
22:00
Sunday
12:00
–
22:00
- Extra Hours On Request: Not recorded
- Remarks: N/A
Contacts
- AIS Tel: N/A
- ARO Tel: N/A
- MET Tel: N/A
- Admin Tel: +1 305-289-6302
- Health Tel: N/A
- Police Tel: N/A
- Authorities Tel: N/A
- Website: N/A
- Remarks: N/A
Slots / PPR
- Slot Required: Not recorded
- PPR Required: No
- PPR Contact: N/A
- Remarks: N/A
Fees
- Landing Fee: USD 4/1000lbs MTOW
- Parking Fee: USD 10/night
- Handling Mandatory: No
- Currency: USD
- Remarks: Florida Keys Marathon Airport. Keys island airport. Limited ramp space.
Fuel Information
- Fuel (FAA, public use): 100LL, Jet A-1+ Source: FAA NASR airport data, cycle 2026-10-01
Immigration
- Port of Entry: Yes, with conditions: User fee airport: permission to land from CBP needed (19 CFR 122.15); CBP facility open Thu-Mon 0900-1730; closed to arrivals Tue and Wed unless CBP approves a request (NASR) Source: 19 CFR 122.15 User fee airports, 2026-10-13 (last amended 2025-11-17)
- APIS Required: No
- GAR Required: No
Restrictions
- Curfew Start: N/A
- Curfew End: N/A
- Noise Chapter Min: Chapter 3
- Remarks: Short runway (5008 ft). Weight restrictions. Turboprop and light jet suitable.
Airport Services
No services listed for this airport yet.
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United States Permit Requirements
Fast
Landing: 1d
- Overflight Permit: No
- Landing Permit: Conditional
- Overflight Lead Time: N/A
- Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:
No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.
Active NOTAMs
09/006
info
OBST TOWER LGT (ASR 1037656) 244131.30N0810630.40W (3.8NM WSW MTH) 353.0FT (348.1FT AGL) U/S
2026-09-11 04:00 UTC
2026-12-31 23:59 UTC
09/002
info
OBST TOWER LGT (ASR 1062080) 245344.30N0803949.40W (24.0NM ENE MTH) 314.3FT (310.4FT AGL) U/S
2026-09-01 16:28 UTC
2026-11-01 23:59 UTC
08/010
info
COM REMOTE COM OUTLET 122.6 U/S
2026-08-28 17:53 UTC
No end time given (PERM)
Received 2026-08-28 17:56 UTC
NOTAMs received from the FAA NOTAM feed (last message 2026-10-28 02:00 UTC). This list is built from the feed as NOTAMs are issued and is not checked against the FAA's full list: confirm with FAA NOTAM Search before flight.
View all NOTAMs on Map
Nearby Airports
Airport History
No milestones recorded for The Florida Keys Marathon Airport yet. Know when it opened, who built it or a notable event? Add it with a source.
Add a historical factFrequently Asked Questions
- What are the operating hours of KMTH?
- The Florida Keys Marathon Airport operates from 12:00 to 22:00.
- What fuel is available at KMTH?
- The FAA lists 100LL, Jet A-1+ for public use at The Florida Keys Marathon Airport. Source: FAA NASR airport data, cycle 2026-10-01.
- Does KMTH require landing permits?
- It depends on the flight. No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures. Permit details for United States
- Where is KMTH located?
- The Florida Keys Marathon Airport (KMTH) is located in Marathon, United States.
- What is the IATA code for KMTH?
- The IATA code for The Florida Keys Marathon Airport is MTH.
- How long is the runway at KMTH?
- The main runway at The Florida Keys Marathon Airport (07/25) measures 1526x30m.
- Is KMTH a port of entry?
- Yes, with conditions. User fee airport: permission to land from CBP needed (19 CFR 122.15); CBP facility open Thu-Mon 0900-1730; closed to arrivals Tue and Wed unless CBP approves a request (NASR). Source: 19 CFR 122.15 User fee airports, 2026-10-13 (last amended 2025-11-17).