Airplanes started regularly serving the Philadelphia region in the 1920’s, but the Philadelphia Municipal Airport did not open until 1940. During its first year of operation it served 40,000 passengers. Today, the Philadelphia International Airport (PHL) serves over 30 million passengers every year and generates more than $14.4 billion in spending to the regional economy, and accounts for more than 141,000 jobs within the region. Since 2008, PHL has welcomed 4 new airlines to the airport and started non-stop service to 6 new international cities. Today PHL is working on a multi-billion dollar capacity enhancement program to reduce air traffic congestion for the next generation of travelers. Take a look back at the earliest days of air travel in Philadelphia to see how far we have come.