Franklin County State Airport (KFSO), Vermont
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Franklin County State Airport (KFSO) is a public-use, non-towered field in Highgate, Vermont, roughly 155 nautical miles from the nearest major metro area, serving as a modest regional option in the state's northern corner. The airport sits at 228 feet elevation and offers a single paved runway suited to light and mid-size business aircraft. Attendance is scheduled Monday through Friday during standard business hours, with self-service fuel filling gaps outside that window. Customs access is limited to landing rights status, requiring prior CBP coordination rather than routine on-arrival clearance.
Runways
Franklin County State Airport has one paved runway, 18/36, 4,001 ft long and 75 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Franklin County State Airport has Jet A1+ and 100LL available on the field. Fueling is available from 8:30am to 5pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Franklin County State Airport has US Customs and Border Protection clearance available onsite, with general clearance for international arrivals.
Source: CBP list of ports of entry.
Business aviation traffic
Franklin County State Airport recorded 42 business aviation movements in 2025. Traffic peaks in June. Business aviation traffic at KFSO is concentrated in a handful of months, with June standing out as the busiest and both January and May recording no operations in the 2025 data.
Business jet movements, FAA TFMSC count. Peak month June, 9 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Franklin County State Airport averages 1.2 days above 90°F in June, 29.2 freeze days in January and 6.0 snow days in January. July is the warmest month, with average highs of 79.4°F, and January the coldest, at 25.1°F.
Weather station is 4.8 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Franklin County State Airport has published operating constraints in five categories: access, runway notes, environmental, pavement strength and other notes.
For clearance delivery, contact Burlington Approach; when Approach is closed, contact Boston ARTCC.
Runway conditions are not maintained when the airport is unattended.
Lighting operates dusk to dawn. REIL for runways 18 and 36 and MIRL for runway 18/36 are pilot-activated via CTAF. The PAPI for runway 36 operates continuously.
Birds are present in the vicinity of the airport.
PCR VALUE: 200/F/C/X/T
Self-service fuel is available 24 hours.
Source: FAA Chart Supplement.
Nearby airfields
Franklin County State Airport has five airfields within 32 NM. The closest is Saint Jean Airport (CYJN), 22.72 NM north.
Source: Skystar calculation from official coordinates.
Skystar at KFSO
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.
$1,200.00 catering order at KFSO.
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
Is customs available at KFSO?
Franklin County State Airport (KFSO) is a landing rights airport, meaning prior CBP permission is required before arrival rather than routine on-demand clearance. There is no walk-up customs desk on the field. Crews planning an international arrival should coordinate clearance in advance rather than assume immediate processing on landing. This status applies to the airport itself, not to a separate nearby customs facility.
What fuel is available at Franklin County State Airport?
Franklin County State Airport (KFSO) stocks both 100LL and Jet A, listed in the data as A1+. Self-service fuel is available on a 24-hour basis according to airport remarks, giving crews access outside the staffed attendance hours. The field's attendance schedule runs Monday through Friday, 0830 to 1700, all months. Fuel purchases outside that window rely on the self-service pumps rather than staffed support.
How long is the runway at KFSO?
KFSO has a single paved runway, 18/36, measuring 4,001 feet long and 75 feet wide with an asphalt surface. This is the airport's only runway, so all fixed-wing operations use this same strip regardless of wind direction. The field is non-towered, so runway use and sequencing are managed by pilots on CTAF. Franklin County State Airport's runway length places it in a category suited to smaller business aircraft and turboprops rather than larger jets.
When does business aviation traffic peak at Franklin County State Airport?
Business aviation activity at Franklin County State Airport (KFSO) is concentrated in a handful of months, with June showing the highest count at 9 operations in the 2025 FAA TFMSC data. January and May each recorded zero business aviation operations that year. Total annual business aviation operations came to 42 out of 235 total operations recorded at the field. Dispatchers scheduling around KFSO should expect activity to vary noticeably by month rather than spread evenly across the year.