Passengers stalled as delays cause frustration at PHL Airport
What caused the luggage pile-ups at Philadelphia International Airport?

The luggage pile-ups at Philadelphia International Airport were caused by flight delays and cancellations due to weather issues and staffing problems. Lightning in the area on Sunday evening might have also contributed to the disruptions, as it could have paused activity on the airfield, including the loading and unloading of baggage.
Why were American Airlines flights repeatedly delayed or cancelled?

American Airlines flights were repeatedly delayed or cancelled due to weather issues, such as lightning in the area, which caused disruptions in the airline's operations and affected the loading and unloading of baggage. The airline has not provided further details on the cause of the delays.
How long were passengers delayed at Philadelphia International Airport?

Passengers at Philadelphia International Airport experienced delays lasting several hours, with some flights being repeatedly delayed or cancelled. The exact duration of the delays varied for each flight, but one traveler reported waiting for two hours on the tarmac and an additional 50 minutes before being let out of the plane.