Atlanta to Knoxville

What the Data Says About ATL to TYS

The Atlanta to Knoxville corridor (ATL → TYS) covers roughly 152 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 14,336 flights in the dataset, this route posts a 86.7% on-time rate with an average delay of 69.4 minutes when flights run late. Over the most recent 24 months of BTS data, 4,253 flights were recorded on this pairing — 48 cancelled (1.1%) and 5 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 4 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 14,336 total flights analyzed, the 86.7% on-time figure is statistically meaningful rather than a small-sample fluke. The 69.4-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 2024 posted the best performance on this corridor at 94% on-time, while Jun 2025 came in at 60% on-time — a 34-point gap between best and worst recent month. For travelers evaluating the ATL to TYS route, the combination of a 86.7% on-time rate, 69.4-minute average delay, 1.1% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.