Knoxville to Philadelphia

What the Data Says About TYS to PHL

The Knoxville to Philadelphia corridor (TYS → PHL) covers roughly 554 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 1,879 flights in the dataset, this route posts a 85.8% on-time rate with an average delay of 94.3 minutes when flights run late. Over the most recent 24 months of BTS data, 931 flights were recorded on this pairing — 14 cancelled (1.5%) and 2 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 1,879 total flights analyzed, the 85.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 94.3-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Oct 2023 posted the best performance on this corridor at 93% on-time, while Aug 2024 came in at 75% on-time — a 18-point gap between best and worst recent month. For travelers evaluating the TYS to PHL route, the combination of a 85.8% on-time rate, 94.3-minute average delay, 1.5% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.