Last week my flight from LGA to DCA was cancelled by AA. I checked in and as I was wandering around the terminal I noticed from the screens that the flight had been cancelled. I checked with the staff at one of the gates to find out what had happened. They told me the flight had been cancelled early that morning.
Why was I checked in for a flight that had already been cancelled? What would have happened if I had not noticed the cancellation on the screen and turned up at the gate for my flight?
In any event, the lady at the gate where I asked about the flight re-booked me on the next plane out to DCA so no harm done.