The Oakland International Airport (OAK), located in Oakland, California, was established in 1927 as part of the Port of Oakland. OAK is the San Francisco Bay Area's oldest airport and was the starting point of the Dole Races, a widely publicized air race from Oakland to Hawaii. In the same year, Boeing Air Transport (the predecessor of United Airlines) started transcontinental passenger and airmail services between Oakland and New York, and later between Oakland and Southern California.

In 1931, Amelia Earhart made her first trip to Oakland and her last, fateful flight in 1937. During World War II, commercial airlines were diverted to Mills Field and Oakland was used by the military as the focal point for all planes bound for the U.S. forces in the Pacific. As of 2019, the airport covers 2,600 acres and has two terminals with 22 boarding gates. OAK offers more than 1,200 nonstop and connecting flights to cities in the United States, Canada, and Europe. It is served by 12 major passenger carriers and 14 cargo carriers, and handles over 13 million passengers and nearly 1.2 billion pounds of cargo annually. The airport employs over 7,200 people, with about 2,600 in air cargo. It has 7,000 parking spaces available.