Grant County International Airport (MWH)

Grant County International Airport (MWH), located in Moses Lake, Washington, is a massive facility with one of the longest runways in the United States. Originally built as Larson Air Force Base, it now serves as a major hub for flight testing, military training, and general aviation. The terminal is a functional building that handles a limited number of corporate and private aviation services rather than scheduled commercial airline traffic. Inside the terminal, passengers can find a quiet waiting area, basic amenities, and administrative offices for airport management. The airport is world-renowned for its use by Boeing and other aerospace companies for flight testing and certification of new aircraft models. It also serves as a primary diversion airport for large international flights heading to Seattle-Tacoma International Airport due to its expansive infrastructure and favorable weather conditions. Ground transportation to Moses Lake and the surrounding region is available via rental cars and local taxis. The airport's vast apron and extensive infrastructure make it a strategic asset for the Pacific Northwest's aerospace industry, supporting a wide range of aviation activities from around the globe. It continues to be a center of innovation and training, providing a unique and highly capable platform for the development of modern aviation technology.