> Airlines operated PtP for decades This is only really true prior to deregulation in 1978. After that, Delta began hub-and-spoke out of Atlanta, and the majo

> Airlines operated PtP for decades This is only really true prior to deregulation in 1978. After that, Delta began hub-and-spoke out of Atlanta, and the majority of airlines followed them. These days, as far as I can tell, Southwest is the only major carrier that doesn't follow this approach. It has its downsides. You don't have pilots sitting "on reserve" at bases ready to fly at a moments notice if there are gaps in the system. There isn't a need to shut down and esentially "reboot" the airline when there is a major disruption, which is what Southwest just had to do. Delta had the second highest cancellation rate due to this winter storm, and that was at 10%. Southwest had to cancel 70% of their schedule.