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Grant County International Airport (MWH/KMWH) is a public airport about five miles north of Moses Lake, Washington, on the site of the former Larson Air Force Base. It is owned by the Port of Moses Lake and is known for its very long runway—14/32 at 13,503 feet—plus extensive ramp space that supports general aviation, cargo, military training, and aerospace testing. The airport has no scheduled passenger airline service but remains a major aviation asset for central Washington.
💡 Local Tip
A frequent-visitor tip: call ahead to confirm FBO hours and transient parking, since the former Larson AFB layout spreads services over a large area and the airport can be very quiet outside business hours.
🚖 Getting There
Most travelers reach MWH by private aircraft or car, since there is no scheduled airline service; arrange a rental car or taxi in advance because rideshare availability can be limited. The airport is about 5 miles north of downtown Moses Lake via WA-17, a 10- to 15-minute drive. For commercial flights, the nearest larger airports are Spokane International (GEG) and Tri-Cities Airport (PSC), each roughly 1.5 to 2 hours away by road.
❓ Frequently Asked Questions
Q: Does Grant County International Airport have commercial flights?
A: No, there is no regularly scheduled passenger airline service at MWH. It primarily supports general aviation, cargo, military, flight training, and aerospace testing.
Q: What are the airport codes for Grant County International Airport?
A: The IATA code is MWH, the ICAO code is KMWH, and the FAA identifier is MWH.
Q: How far is the airport from Moses Lake?
A: The airport is about 5 miles north of downtown Moses Lake, typically a 10- to 15-minute drive via WA-17.
Q: What is the longest runway at MWH?
A: Runway 14/32 is 13,503 feet long, making it one of the longest public-use runways in the United States and capable of handling large aircraft.
AI-generated content · Generated Sep 30, 2026 · deepseek-v4.1-flash