Philadelphia to Knoxville

What the Data Says About PHL to TYS

The Philadelphia to Knoxville corridor (PHL → TYS) covers roughly 554 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 1,730 flights in the dataset, this route posts a 75.4% on-time rate with an average delay of 80.9 minutes when flights run late. Over the most recent 24 months of BTS data, 934 flights were recorded on this pairing — 23 cancelled (2.5%) and 3 diverted (0.3%). 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 1,730 total flights analyzed, the 75.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 80.9-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 89% on-time, while Aug 2024 came in at 69% on-time — a 20-point gap between best and worst recent month. For travelers evaluating the PHL to TYS route, the combination of a 75.4% on-time rate, 80.9-minute average delay, 2.5% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.