2/ 5 reviews
Easy in & out
“The pilot was very friendly and the 30 minute ride went by quickly.”
carol maurer5★ on Google
Airports / Florida / MTH
Medium airport · MTH
Florida Keys Marathon International Airport.
Marathon, Florida · 5 ft elevation. A private-aviation gateway on the Bravo register.
4.6/5
Google rating
104 ratings
0
Operators based
5
Elevation ft
Marathon, FloridaELEV 5 FTMedium airport
4.6
Google rating
104
Google reviews
ratings on Google
1
FBOs on field
ramp, fuel and handling
5
Field elevation
feet above sea level
36
Nearest alternate
nm to NQX
Field standing
#23 / 79
Florida airports by Google rating
4.6★ across 104 Google ratings , ranked against 79 rated FL fields.
36 nm
To the nearest alternate
Naval Air Station Key West/Boca Chica Field (NQX), 2 fields within 50 nm.
Overview
Located in Marathon, Florida, Florida Keys Marathon International Airport (KMTH / MTH) operates as a mid-sized airport. The field lies at an elevation of 5 feet. The field has no airline schedules, which keeps it focused on private and general aviation flying.
MTH has no resident charter fleet; trips here are typically flown by operators repositioning from surrounding airports. Useful alternates include Naval Air Station Key West/Boca Chica Field (NQX, 36 nm), Key West International Airport (EYW, 40 nm), and Miami Homestead General Aviation Airport (KX51, 54 nm). MTH offers a single 5,008-foot paved runway, which supports charter types through the super-midsize jet class.
Quotes for flights out of MTH vary with aircraft type, repositioning, and schedule flexibility. Use the cost estimator to model a trip from MTH, or browse verified operators serving the area.
1 FBO serves KMTH. Run one? Become the preferred FBO
Ramp services
FBOs on the field
Million Air Florida Keys Marathon
Your FBO? Claim it, freeMillion Air Florida Keys is centrally located between Key Largo and Key West, offering quick and easy access to all the islands of the archipelago. Located in the heart of the Florida Keys, our 5,008 ft. runway and ample ramp space, offers a less congested option than Key West, which is less than an hour away.
- Fuel
- Hangar
- 0700-1900 daily, 24/7 on call
- Unicom 131.45
- Executive lounge
- Customs
- Conference room
- Wi-Fi
- Cafe
- Courtesy car
- Shuttle
- Car rental
- +13 more
- Phone
- Website
- Address
Directory data, unpaid. FBOs can take the Preferred slot above.
What fliers highlight.
From the stored review texts
2/ 5 reviews
Staff & service
“The pilot was very friendly and the 30 minute ride went by quickly.”
carol maurer5★ on Google
Themes counted by keyword across Google review texts for Florida Keys Marathon International Airport, every quote is verbatim from a real review.
Field capability
ICAO
KMTH
IATA
MTH
FAA / Local
MTH
Elevation
5 ft
Coordinates
24.7260° N · 81.0514° W
Airspace
G · GolfClass G, GolfUncontrolled field, no tower. Pilots self-announce and sequence themselves on the common traffic advisory frequency.Source: FAA NASR class airspace
Size
Medium
Scheduled svc
No
Elevation vs FL fields
state range 3–213 ft
At 5 ft, MTH sits lower than 94% of the 90 Florida fields on the register.
Runways & aircraft access
1 runway
longest 5,008 ft
- 07/255,008 ft × 100 ftAsphaltLighted
Which aircraft can operate here
vs longest paved runway 5,008 ft
MTH's 5,008 ft paved runway typically supports charter aircraft up to super-midsize jets.
- Turboprop3,000 ft
- Light Jet3,500 ft
- Midsize Jet4,500 ft
- Super-Midsize Jet5,000 ft
- Heavy Jet5,500 ft
- VIP Airliner6,000 ft
Class minimums are sea-level planning rules of thumb. A specific aircraft's balanced-field length varies with weight, temperature, and field elevation. Confirm performance with the operator.
Access & alternates
Closest alternate fields by great-circle distance, every listing links to its own field brief.
- 36nmNQXNaval Air Station Key West/Boca Chica FieldKey West
- 40nmEYWKey West International AirportKey West
- 54nmKX51Miami Homestead General Aviation AirportHomestead
- 55nmOCAOcean Reef Club AirportKey Largo
- 58nmHSTHomestead Air Reserve BaseHomestead
- 65nmTMBMiami Executive AirportMiami
Location
Open the full mapKMTH · Florida Keys Marathon International Airport · Marathon, FL
Flight times from here
Approximate nonstop block times from MTH on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Palm Beach (PBI) | 128 nm | 42m |
| Nashville (BNA) | 743 nm | 2h 8m |
| Houston (HOU) | 814 nm | 2h 18m |
| Washington DC (IAD) | 873 nm | 2h 26m |
| Austin (AUS) | 943 nm | 2h 36m |
| Dallas (DAL) | 962 nm | 2h 38m |
| New York (TEB) | 1,029 nm | 2h 48m |
| Chicago (ORD) | 1,090 nm | 2h 56m |
Common questions
- What size private jets can use MTH?
- Florida Keys Marathon International Airport's longest paved runway is 5,008 ft, which typically supports charter aircraft up to super-midsize jets. Lighter classes (turboprops, light and midsize jets) operate comfortably; confirm exact performance for a specific tail with the operator, since balanced-field length shifts with weight, temperature, and elevation.
- What is the longest runway at MTH?
- Florida Keys Marathon International Airport has one runway; the longest measures 5,008 ft on a paved surface and is lit for night operations.
- Which FBOs are at Florida Keys Marathon International Airport?
- One FBO serves MTH: Million Air Florida Keys Marathon. Phone, website, hours, unicom and services for each are listed on this page. Call ahead for fuel, ramp space, and ground handling.
- What is the nearest major airport to MTH?
- The closest alternate is Naval Air Station Key West/Boca Chica Field (NQX), about 36 nm away, followed by Key West International Airport (EYW) at 40 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from MTH to major cities?
- Typical block times on a midsize jet: Nashville about 2h 8m (743 nm), Houston about 2h 18m (814 nm), Washington DC about 2h 26m (873 nm). Faster classes trim these times; add positioning and taxi for the real schedule.