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Montgomery County Airpark (GAI/KGAI) is a county-owned public-use airport about 20 miles northwest of Washington, D.C., near Gaithersburg, Maryland. Opened in 1959, it serves as a general aviation reliever field with a single 4,200-foot runway and supports flight training, business aviation, and recreational flying. Its location just off I-270 makes it a convenient gateway to the D.C. suburbs.
💡 Local Tip
Frequent visitors know the field gets busy with flight-school traffic on clear weekends, so call ahead for parking, fuel, and after-hours access; also review the latest DC SFRA/FRZ NOTAMs before flying in.
🚖 Getting There
By car, reach the airport from I-270 via exits for MD-124 (Quince Orchard Road) or MD-117, then follow Airpark Road to the terminal/FBO area. The closest Metrorail station is Shady Grove on the Red Line, roughly 10-15 minutes away by taxi or rideshare; there is no direct rail or Metro service to the airport. Allow extra time during weekday rush hours, as I-270 and local roads can be congested.
❓ Frequently Asked Questions
Q: What are the airport codes for Montgomery County Airpark?
A: IATA: GAI; ICAO: KGAI; FAA LID: GAI.
Q: What runway and services are available?
A: The airport has one asphalt runway, 14/32, 4,200 feet long, with fuel, flight training, maintenance, and hangar/tie-down services available through on-field providers.
Q: Is the airport towered?
A: Yes, it operates as a controlled field during published tower hours; check current charts, ATIS, and NOTAMs before arrival.
Q: Can transient pilots fly in?
A: Yes, it is a public-use airport open to general aviation; review DC-area airspace and SFRA procedures if approaching from the south or east.
AI-generated content · Generated Oct 1, 2026 · deepseek-v4.1-flash