Piedmont Airlines (1948-1989) on-time performance

TrackMyWings does not publish an on-time figure for Piedmont Airlines (1948-1989) (PI) yet. On-time data measured on the flights TrackMyWings tracks arrives at launch.

Where published figures come from

• For Piedmont Airlines (1948-1989), the US Department of Transportation's Bureau of Transportation Statistics publishes on-time figures for the larger US airlines.
• Many airlines report punctuality in their own annual or operational reports.
• Independent trackers publish their own rankings. Figures differ by definition: most count a flight as on time when it arrives within 15 minutes of schedule, and some exclude cancellations.