Portland International Airport is a joint civil–military airport and the largest airport in the U.S. state of Oregon, accounting for 90% of the state's passenger air travel and more than 95% of its air cargo. It is within Portland's city limits just south of the Columbia River in Multnomah County, by air and by highway northeast of downtown Portland. Portland International Airport is often referred to by its IATA airport code, PDX. The airport covers 3,000 acres (1,214 ha) of land.
Portland International Airport has direct flights and connections to most major airports throughout the United States, and non-stop international flights to Canada, Germany, Japan, Mexico, the Netherlands, Iceland and the United Kingdom. The airport is a hub for Alaska Airlines. It also has a maintenance facility for Alaska Air subsidiary Horizon Air. General aviation services are provided at PDX by Atlantic Aviation. The Oregon Air National Guard has a base on the southwest portion of