Tracking US Airlines’ Delay Propagation Factor

This is another of our evolving KPIs for tracking US airlines in new ways. Delay Propagation Factor quantifies how an initial downstream or primary delay ripples across subsequent flight legs in an aircraft’s daily rotation.

This helps show how resilient airline schedules are. Does an early hiccup keep going? The short answer is, yes, absolutely. You can view this using this model. As the day progresses, airline schedules fall apart.

But if you’re reading this site, you’re not a travel planner. You want to get into the new KPI.