KMTH · Marathon, Florida
Florida Keys Marathon Airport
KMTHMarch 25, 2026 · KMTH-0326
Operational Summary
- U.S. Customs Service
- Yes
- User Fee
- Yes
- Office Hours
- Thu-Mon09:00-17:30
Eastern Time
- Service Hours
- Thu-Mon09:30-17:00Per permission to land procedures
Eastern Time
- Parking
- CBP inspection area
- Permission to Land
- Required
Parking and Inspection
Where to Park
CBP inspection area
Aircraft should park in the CBP box.
Federal Inspection Station (FIS)
Not attached to the FBO or main terminal.
Million Air
FBO for Marathon.
Park in the CBP box; CBP will meet the aircraft on the ramp.
Inspection Process
- Aircraft should park in the CBP box.
- The FIS is not attached to the FBO or main terminal.
- A CBP Officer will meet the aircraft on the ramp to begin the inspection.
- All crew and passengers will be processed inside the FIS.
- Be prepared to present passports, visas, pilot’s license, medical certificate, aircraft registration, and user fee decal (if appropriate).
- Regulated waste/garbage will be collected by CBP from the aircraft crew.
- Passengers can depart directly from FIS at the conclusion of their inspection or with the aircraft.
Procedures
Permission to Land
Park in the CBP box; CBP officer meets on ramp.
Appointment
Unknown- the FBO for Marathon is Million Air (305) 743-1995. NOTE: For further detailed information regarding national GA processing standards and procedures, please refer to the CBP Private Aircraft Arrival Information Document or contact GAsupport@cbp.dhs.gov March 3, 2026 Publication Number KMTH-0326 Marathon International Airport (KMTH)
Departure
Passengers may depart from FIS or with aircraft.
Operator Highlights
- Permission to land required; ±30 min tolerance
- Park in CBP box; FIS separate from FBO
- CBP meets aircraft on ramp; processing in FIS
- Bring passports, visas, pilot/medical certs, registration, user fee decal
- CBP collects regulated waste
- Commercial outbound clearance required
Contacts and Location
Customs Location Map
9400 Overseas HighwayMarathon, FL 33050Related Resources for KMTH
Hours and Availability
Office Hours
- Thu-Mon09:00-17:30
Eastern Time
Source Wording
Thu–Mon 09:00–17:30 ET
Service Hours
- Thu-Mon09:30-17:00Per permission to land procedures
Eastern Time
Source Wording
Thu–Mon 09:30–17:00 ET
Availability
- Inspection services for the entrance/ arrival of aircraft at Marathon International Airport are available Thursday- Monday, 0930-1700 in accordance with the port's
- the FBO for Marathon is Million Air (305) 743-1995. NOTE: For further detailed information regarding national GA processing standards and procedures, please refer to the CBP Private Aircraft Arrival Information Document or contact GAsupport@cbp.dhs.gov March 3, 2026 Publication Number KMTH-0326 Marathon International Airport (KMTH)
Remarks
- the FBO for Marathon is Million Air (305) 743-1995. NOTE: For further detailed information regarding national GA processing standards and procedures, please refer to the CBP Private Aircraft Arrival Information Document or contact GAsupport@cbp.dhs.gov March 3, 2026 Publication Number KMTH-0326 Marathon International Airport (KMTH)
Detected Topics
- FBO Coordination
- Usda Waste
- User Fee Airport
- Landing Rights
- Outbound Clearance
- Passenger Processing
Nearby Customs Airports Within 250 NM
Key West, Florida
CBP Box, 3491 South Roosevelt Blvd., Key West, FL 33040
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Sarasota, Florida
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Lakeland, Florida
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Tampa, Florida
Melbourne, Florida
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St. Petersburg, Florida
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Orlando, Florida
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Sanford, Florida
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Leesburg, Florida
Sun Air Aviation
Original Content
9400 Overseas Highway, Marathon, FL 33050 General Aviation Airport Fact Sheet Marathon International Airport (KMTH) Regular Office Hours Thursday-Monday, 0900-1730 Eastern Time (ET) Contact Information (305) 289-2029 CBP Marathon Office KMTH_GAP@cbp.dhs.gov Hours of Service for Entrance and Clearance Inspection services for the entrance/ arrival of aircraft at Marathon International Airport are available Thursday- Monday, 0930-1700 in accordance with the port's permission to land procedures. Commercial aircraft operators departing the U.S. must obtain an outbound clearance by contacting CBP directly. Permission to Land Procedures Marathon International Airport (KMTH) is designated as a “user fee airport” [19 CFR 122.1(m);19 CFR 122.15]. Pilots must secure permission to land by contacting CBP during regular office hours, prior to departure from the foreign port or place. Permission to land is granted with a tolerance of (+/-) 30 minutes. If your ETA deviates outside those parameters, Previously granted permission(s) are invalid and you must contact CBP to re-secure permission to land. Inspection Process • Aircraft should park in the CBP box. • The FIS is not attached to the FBO or main terminal. • A CBP Officer will meet the aircraft on the ramp to begin the inspection. • All crew and passengers will be processed inside the FIS. • Be prepared to present passports, visas, pilot’s license, medical certificate, aircraft registration, and user fee decal (if appropriate). • Regulated waste/garbage will be collected by CBP from the aircraft crew. • Passengers can depart directly from FIS at the conclusion of their inspection or with the aircraft. Special Procedures/Miscellaneous • the FBO for Marathon is Million Air (305) 743-1995. NOTE: For further detailed information regarding national GA processing standards and procedures, please refer to the CBP Private Aircraft Arrival Information Document or contact GAsupport@cbp.dhs.gov March 3, 2026 Publication Number KMTH-0326 Marathon International Airport (KMTH)