I
know the 30 day notice isn't true.
They killed DCA-PBI service about five days before I was scheduled to fly the route. I accepted a DCA-ATL-PBI reroute because alternative flights were either quite pricey or sold out. At first FL even refused to refund my tickets as I would arrive only 3h 45m after my originally scheduled itinerary... and it would have to be 4h for a refund.

A conversation with a higher-up changed that but in the end I stuck with them anyhow.