Pennsylvania ranks 11th in the country in the number of public-use aviation facilities with 122 airports, heliports, and seaplane bases.
The aviation industry also supports more than 300,000 jobs making it one of the largest employment sectors in the state.
[2] During World War II, Pennsylvania was designated by the United States Army and United States Air Force as training skies for bomber and fighter pilots before deployment to Europe or Asia.
These bases include Fort Indiantown Gap, Pittsburgh Air Reserve Station and Harrisburg International Airport.
This caused airlines to withdraw, such as British Airways in Pittsburgh and KLM at Philadelphia's airport.