Gaithersburg, Maryland
KGAI Montgomery County Airpark
Montgomery County Airpark (KGAI) is a non-towered, public-use airport in Gaithersburg, Maryland, at 538.7 ft MSL. Its runway is 14/32 (4,202 by 75 ft, asphalt). Right traffic for runway 32. CTAF 123.075.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- ICAO KGAI, FAA GAI
- Location
- Gaithersburg, Maryland (Montgomery County). 3 NM NE of the city center
- Elevation
- 538.7 ft MSL
- Position
- 39.1683° N, 77.1660° W
- Control tower
- No, non-towered
- Sectional chart
- Washington
- Magnetic variation
- 9° W (1985)
- Fuel
- 100LL, Jet A
- Ownership
- Publicly owned, open to the public
- Attendance
- MARCH-MAY ALL 0800-1900; JUNE-SEPTEMBER ALL 0800-2000; OCTOBER-FEBRUARY ALL 0800-1800
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 14/32 | 4,202 × 75 ft | Asphalt, good condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 14 | Left traffic | 4-light PAPI, left | None listed | None listed | Not listed |
| 32 | Right traffic | 4-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 123.075
- Actvt Reil Rwy 14 & 32; Mirl Rwy 14/32 - Ctaf. Papi Rwy 14 & 32 Opr Consly.
- UNICOM
- 123.075
- Clearance delivery
- 121.6
- Approach / departure
- 128.7
- "Potomac"
Weather station
- AWOS-3PT GAI
- 128.275
Before you go
Brief KGAI in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Montgomery County Airpark, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.