It’s a nickname Isom likes, he told me last month at Skift Global Forum, because he believes D0 — that’s airline speak for flights that leave on time — is the most important metric for operations. He became animated speaking about the “choreography” required for punctual departures, from what happens at ticketing counters to fueling, catering, and cleaning.
Philadelphia – The fourth-largest hub in terms of number of daily flights, fifth-largest in number of destinations and American's primary East Coast hub. American flies approximately 20.5 million passengers a year through PHL, which is about 56,000 people per day. American has about 70% of the market share at PHL, making it the airport's largest airline. Philadelphia is American Airlines' primary European and transatlantic gateway.