This article examines New Deal public works agencies’ pivotal contributions to American aeronautical development, arguing that their creation of aviation-related infrastructure offers powerful evidence of the New Deal’s success in remaking the American landscape and fostering economic growth. Organizations such as the Civil Works Agency, the Public Works Administration, and the Works Progress Administration built or improved almost every contemporary U.S. airport, funding improvements that created the foundations of America’s modern air transport network. Much more than make-work endeavors, these efforts reflected New Dealers’ desire to use public works to create worthwhile products. These policies highlight the sophistication with which the New Deal promoted economic development, and belie the image of public works agencies privileging short-term employment to the detriment of economic gain. Airport terminals, runways, hangers, and countless other aviation-related improvements represent some of the New Deal’s most significant physical legacies, highlighting the Roosevelt administrations’ vital contributions to aeronautical development.