Franklin County State Airport
FSO · KFSO · Swanton, VT · 228 ft elevation · var 14W · Non-towered
Airport information
- ICAO / IATA
- KFSO
- Coordinates
- 44.9403, -73.0975
- Elevation
- 228 ft MSL
- Magnetic variation
- 14W
- Sectional chart
- MONTREAL
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3 · 119.025 · ☎ 802-868-9941
- ARTCC
- BOSTON (ZBW)
- Flight service (FSS)
- BURLINGTON
- NOTAM facility
- BTV
- Attendance
- MON-FRI 0830-1700
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1970/07
- Distance from city
- 3 W
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:28 AM | 08:28Z |
| Sunrise | 05:06 AM | 09:06Z |
| Sunset | 08:42 PM | 00:42Z |
| Evening civil twilight Loggable night begins | 09:20 PM | 01:20Z |
Plan a flight from KFSO
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- DUSK-DAWN. ACTVT REIL RWY 18 & 36; MIRL RWY 18/36 - CTAF. PAPI RWY 36 OPR CONSLY. on 122.8 — Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 01 · 008°
- Pattern
- left (turns left)
- TPA
- 1,200 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 01 at 1,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 01/19
3,001 ft × 60 ft · ASP- Heading
- 008° mag · 354° true
- Heading
- 188° mag · 174° true
| Runway | Length | Your margin |
|---|---|---|
| 01/19 | 3,001 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| APCH/P DEP/P | 121.1 | |
| APCH/P DEP/P | 278.8 | |
| APCH/P DEP/P | 360.8 | |
| CTAF | 122.8 | DUSK-DAWN. ACTVT REIL RWY 18 & 36; MIRL RWY 18/36 - CTAF. PAPI RWY 36 OPR CONSLY. |
| UNICOM | 122.8 | |
| FSO AWOS-3 | 119.025 | |
| ST. ALBANS RCAG | 120.35 | APCH/DEP SVC PRVDD BY BOSTON ARTCC ON FREQS 120.35/342.25 (ST. ALBANS RCAG) WHEN BURLINGTON APCH CTL CLSD. |
| ST. ALBANS RCAG | 342.25 | APCH/DEP SVC PRVDD BY BOSTON ARTCC ON FREQS 120.35/342.25 (ST. ALBANS RCAG) WHEN BURLINGTON APCH CTL CLSD. |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PLB · Plattsburgh | VORTAC | 116.90 | r065° / 23.7 NM |
| BTV · Burlington | VORTAC | 117.50 | r021° / 32.8 NM |
Airport diagram
Open PDF ↗Preview diagram
Procedures at a glance
Approaches2
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A-1 (additive)
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Avionics, Instruction, Parachute ops, Rental, Aircraft sales
Ownership & management
Remarks FAA
- RWY CONDS NOT MNT WHEN UNATNDD.
- BIRDS INVOF ARPT.
- FOR CD CTC BURLINGTON APCH AT 802-657-4413, WHEN APCH CLSD CTC BOSTON ARTCC AT 603-879-6859.
- DUSK-DAWN. ACTVT REIL RWY 18 & 36; MIRL RWY 18/36 - CTAF. PAPI RWY 36 OPR CONSLY.
- SELF SVC FUEL AVBL 24 HRS.
- PCR VALUE: 200/F/C/X/T
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KFSO in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About KFSO
Franklin County State Airport (FSO · KFSO) is an airport in Swanton, VT, at 228 ft MSL. It has 1 runway, the longest 3,001 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KFSO, refreshed from the Aviation Weather Center and FAA NASR.
Does KFSO have a control tower?
No. Franklin County State Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at KFSO?
Franklin County State Airport has 1 runway; the longest is 3,001 ft. See the Runways tab for headings, surface, and lighting.
Where is KFSO?
Franklin County State Airport is in Swanton, VT, at an elevation of 228 ft MSL. Coordinates: 44.9403, -73.0975.
Fly out of KFSO often?
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