AviatDataDane County Regional Airport – Truax Field MSN / KMSN
Madison, Wisconsin, United States · United States · Dane County, Wisconsin (county-owned and operated)
2.5Mpax · 2025
H24Jet A · Avgas 100LL
ICAO / IATAKMSN / MSN
OperatorDane County, Wisconsin (county-owned and operated)
Coordinates43.1399°N, 89.3375°W
Elevation887 ft · 270 m
Time zoneCT (UTC-6/-5 DST)
Passengers / yr2,470,000 (2025)
CustomsNo
Border controlNo
SchengenNo
FuelJet A · Avgas 100LL
Bonded—
AIP referenceKMSN — FAA Chart Supplement / d-TPP
Operating hoursH24
TerminalsSingle terminal, one concourse, 16 gates
Runways (3)
- 18/36 · 2,745 m / 9,006 ft · 46 m wide · Concrete (grooved) · ILS ILS both ends: RWY 36 ILS CAT II/III (also SA CAT I), RWY 18 ILS SA CAT I/II
- 03/21 · 2,195 m / 7,200 ft · 46 m wide · Concrete (grooved) · ILS RWY 21 localizer only (LOC/LOC-DME, no glideslope); RWY 03 no ILS/LOC (RNAV/VOR only)
- 14/32 · 1,782 m / 5,846 ft · 46 m wide · Concrete (grooved) · ILS None (VOR/RNAV both ends)
Airport contact
Joint civil-military Truax Field; home of Wisconsin ANG 115th Fighter Wing (F-35A); domestic-only, pursuing but not yet holding international/CBP status (applied to U.S. Treasury for international designation Feb 2025; still pending as of 2026).
Services
Available
On request / PPR
Seasonal / ageing
Unconfirmed / not listed
Ground handling
Available · 3 providers
Menzies Aviation
Third-party into-plane ground services (above- and below-wing ramp/passenger handling) at a dedicated MSN station listed in the Menzies network.
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Verified 2 months ago · unconfirmed source
Unifi Aviation
Third-party ramp and below-wing handling at MSN (Delta ramp; also airport customer-service/gate agents) per current 2026 MSN-specific job postings — baggage, marshalling, aircraft turnaround.
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Verified 2 months ago · unconfirmed source
Trego-Dugan Aviation (TDA)
Third-party contract ramp/ground handling at MSN (aircraft turnaround, baggage, marshalling, GSE) per current 2026 Madison ramp-agent postings; a Trego-Dugan 'General Manager, MSN' posting confirms a staffed on-station operation.
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Verified 2 months ago · unconfirmed source
Aircraft fuel
Available
Wisconsin Aviation
Avfuel-branded into-plane fueling (Jet A and 100LL) for transient, based and airline aircraft at the FBO; full-service, 24 hours. · 24/7
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Verified 2 months ago · unconfirmed source
De-icing
Unconfirmed
Unifi Aviation
De-icing appears only as generic 'de-ice as required' boilerplate in Unifi ramp-agent postings; no independent corroboration that Unifi runs a distinct de-icing service at MSN.
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Verified 2 months ago · unconfirmed source
Part-145 line maintenance
Available
Wisconsin Aviation
In-house aircraft maintenance and avionics shop supporting GA/corporate aircraft at MSN (part of full-service FBO operation).
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Verified 2 months ago · unconfirmed source
Part-145 base maintenance
Not listed
Component shops & overhaul
Available · 3 providers
Wisconsin Aviation - Four Lakes, Inc.
Avionics/instrument shop — in-house bench service and repair facility at Madison (MSN); services Cirrus Perspective/Garmin G1000, Avidyne MFD/PFD/R9, and L-3 systems, plus autopilot repair, weather radar service, ADS-B installs and RVSM inspections. Operates under FAA Part 145 repair station certificate DBKR124D, held by "Wisconsin Aviation - Four Lakes Inc" at 3632 Corben Court, Madison, WI (the Madison entity, distinct from the Watertown corporate certificate), carrying Instrument: Limited and Radio: Class 1/2/3 ratings; avionics desk •••.
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Verified 5 weeks ago · unconfirmed source
Wisconsin Aviation - Four Lakes, Inc.
Battery shop — battery servicing listed among core Madison maintenance capabilities; certificate DBKR124D also carries an Accessory: Limited Part 145 rating, which typically covers battery/accessory work, but the specific battery chemistries or types serviced are not itemized publicly.
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Verified 5 weeks ago · unconfirmed source
Wisconsin Aviation - Four Lakes, Inc.
Composite/structures shop — Cirrus factory-authorized composite and airframe damage repair (from antenna installs to complete damage repair), performed by in-house craftsmen at both the Madison (MSN) and Watertown (RYV) locations; certificate DBKR124D carries an Airframe: Limited Part 145 rating covering the Madison shop specifically.
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Verified 5 weeks ago · unconfirmed source
Flight catering
Not listed
Aircraft cleaning
Not listed
Ground support equipment
Not listed
Cargo handling
Not listed
Aviation security
Not listed
Passenger & crew transport
Available
Menzies Aviation
Skycap curbside baggage assistance and wheelchair/passenger transport in the terminal; Menzies now holds the MSN skycap/wheelchair contract per the airport's employment page (station contact Mike Ellestad).
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Verified 2 months ago · unconfirmed source
Flight support
Available
Wisconsin Aviation
Sole general-aviation/corporate FBO on field (east-side GA terminal, 3606 Corben Court, Madison WI 53704); line services, transient parking/tiedowns, hangars, GPU/power cart, oxygen service, pilot lounge. Open 24/7/365. · 24/7
Contact details available to subscribersYour company? Subscribe · Founding Member Price €199/yr
Verified 2 months ago · unconfirmed source
Hotel & travel
Not listed