Harrisburg International (KMDT), Pennsylvania
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Harrisburg International (KMDT) is a towered, public-use airport in Harrisburg, Pennsylvania, sitting roughly 60 nautical miles from the metro core it serves. The field handles a mix of business aviation and cargo traffic across a single, long asphalt runway, with onsite customs and full-day fuel attendance supporting both domestic and international operations. Annual operations reached 32,819 in 2025, with business aviation accounting for 5,762 of those movements according to FAA TFMSC data.
Runways
Harrisburg International has one paved runway, 13/31, 10,001 ft long and 200 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Fuel and airfield services
Harrisburg International has Jet A and 100LL available on the field. Fueling is available 24 hours a day, every day, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Harrisburg International has US Customs and Border Protection clearance available onsite, with general clearance for international arrivals. A USDA compliance agreement is in place.
Source: CBP list of ports of entry.
Business aviation traffic
Harrisburg International recorded 5,762 business aviation movements in 2025. Traffic peaks in September and October. Business aviation traffic at KMDT concentrates in the September-October period, with those two months recording the highest monthly operations of the year.
Business jet movements, FAA TFMSC count. Peak month October, 575 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Harrisburg International averages 9.3 days above 90°F in July, 25.6 freeze days in January and 2.7 snow days in February. July is the warmest month, with average highs of 86.8°F, and January the coldest, at 38.6°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Harrisburg International has published operating constraints in five categories: access, runway notes, environmental, pavement strength and other notes.
The cargo ramp is closed to transient aircraft without prior permission; contact the airport manager.
Cargo apron parking spot 9 is closed to aircraft with a wingspan of more than 52 feet.
Runway 13 has PIR and military assault landing zone markings.
Runway 31 has PIR and military assault landing zone markings.
Approach ratio is 47:1 to the displaced threshold.
Runway 31 approach slope is 36:1 to the displaced threshold.
Use caution: due to proximity and runway alignment, aircrews have mistaken Capital City's runway 12/30 for MDT's runway 13/31, which is 4 nautical miles east.
Bird flocks are present on and in the vicinity of the airport.
Bird watch condition Phase 1, covering December through February and May through July, indicates light bird activity. Phase 2, covering August through November and March through April, indicates heavy bird activity normally associated with the migratory season.
PCR VALUE: 800/F/C/X/T
Touch-and-go landings are not permitted between 2300 and 0600 local time.
Aircraft not supporting the Air National Guard, and all fighter aircraft, must contact the FBO for parking and fuel. Non-standard markings are present on C-130J parking apron spot 5, with white painted lines denoting a LAIRCM laser testing area.
Aircraft destined for Avflight Harrisburg should indicate this in the remarks section of the DD175 and attempt to contact them with an ETA on 122.95, prior to landing.
This is a cold temperature airport. Altitude correction is required at or below minus 16 degrees Celsius.
Source: FAA Chart Supplement.
Nearby airfields
Harrisburg International has five airfields within 36 NM. The closest is Capital City (KCXY), 4.32 NM west.
Part of the Baltimore area.
Source: Skystar calculation from official coordinates.
Skystar at KMDT
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$2,400.00 catering order at KMDT.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runway length is available at KMDT?
Harrisburg International operates a single runway, 13/31, measuring 10,001 feet long and 200 feet wide with an asphalt surface. This length supports large business jets and cargo aircraft without payload restrictions tied to runway distance. The pavement carries a PCR value of 800/F / C/X / T, reflecting a strength rating suited to heavy aircraft operations. KMDT is a towered, public-use airport at 310 feet elevation. Dispatchers planning heavier airframes into KMDT should find the single-runway configuration adequate given its length and pavement classification.
Is fuel available at KMDT?
Harrisburg International stocks both 100LL avgas and Jet A fuel, with attendance scheduled around the clock, every day of the week. The airport is towered and supports customs inspection through onsite CBP services, along with a USDA compliance agreement. Business aviation traffic at KMDT has ranged from roughly 406 to 575 operations per month through 2025 according to FAA TFMSC data, indicating steady activity year-round. This traffic level supports consistent fuel service without the gaps sometimes seen at lower-tier fields. Crews should still confirm current fuel status directly given operational notices on the field regarding parking and access.
Does KMDT have customs clearance onsite?
Harrisburg International provides CBP inspection services onsite along with a USDA compliance agreement, allowing international arrivals to clear directly at the field. This is a standard, full customs presence rather than a restricted or on-call arrangement. Combined with its 10,001-foot runway and jet fuel availability, KMDT is well positioned for international business aviation traffic. The airport is towered and operates on an all-day, every-day attendance schedule. Crews arriving from abroad should still coordinate cargo apron access separately, since portions of the ramp require prior permission from airport management.
What bird activity should crews expect at KMDT?
Harrisburg International tracks bird activity in two seasonal phases. Phase 1, covering December through February and May through July, indicates light bird activity. Phase 2, covering August through November and March through April, indicates heavy bird activity normally associated with the migratory season. Bird flocks are also noted on and in the vicinity of the airport as a standing caution. Crews operating into KMDT during the fall and early spring windows should factor this heavier activity period into their approach and departure planning.
Is there a risk of confusing KMDT with a nearby airport?
Yes. A published caution at Harrisburg International warns that aircrews have mistaken Capital City's runway 12/30 for KMDT's runway 13/31 due to their proximity and similar alignment. Capital City lies only 4.32 nautical miles from KMDT on a bearing of 289 degrees, close enough to create confusion during visual approaches. This caution is specific to KMDT's approach environment and appears directly in the airport's remarks. Crews flying visual arrivals into Harrisburg International should verify field identification carefully given this documented history of runway confusion between the two airports.