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 Florida Keys Marathon Airport offers Jet A, 100LL, Jet A-1+.

Does KMTH require landing permits?

Yes, landing permits are required for The Florida Keys Marathon Airport (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.

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

The Florida Keys Marathon Airport (KMTH/MTH) serves Marathon, United States. This is a mid-sized airport with 1 runway (07/25). Field elevation is 5 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.

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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 · Sep 9

2 aircraft observed within 6 NM · busiest hour 12:00Z

2026-08-272026-09-09

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: 2026-03-27

Help keep this data accurate!
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 Recently verified Outdated — please verify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: No
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: No
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 Type: Jet A
Price/L: N/A
Last Updated: 2026-02-18
Remarks: Island pricing. Limited availability.

Fuel Type: 100LL
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Fuel Type: Jet A-1+
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Immigration

Port of Entry: No
GENDEC Required: No
GAR Required: No
Remarks: Domestic only. CBP at KEYW.

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.

View Full United States Permit Details

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 04:00:00 2026-12-31 23:59:00

09/004 info

OBST TOWER LGT (ASR 1247845) 244241.50N0810529.30W (2.4NM WSW MTH) 274.0FT (268.0FT AGL) U/S

2026-09-06 16:39:00 2026-10-21 16:37:00

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 16:28:00 2026-11-01 23:59:00

+1 more active NOTAM

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Nearby Airports

FD51 Summerland Key Cove Airport 22 NM 7FA1 Sugar Loaf Shores Airport 29 NM FA81 Tavernaero Park Airport 33 NM KNQX Naval Air Station Key West/Boca Chica Field 36 NM KEYW Key West Intl 40 NM 07FA Ocean Reef Club Airport 55 NM 4FD3 The Wright Place STOLport 56 NM FL31 Mjd STOLport 57 NM

Compare KMTH with FD51 side by side →

Airport History

Discover the key milestones and historical events that shaped The Florida Keys Marathon Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.

Explore History

Frequently 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 Florida Keys Marathon Airport offers Jet A, 100LL, Jet A-1+.
Does KMTH require landing permits?: Yes, landing permits are required for The Florida Keys Marathon Airport (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.

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