Atlanta to Chattanooga

What the Data Says About ATL to CHA

The Atlanta to Chattanooga corridor (ATL → CHA) covers roughly 106 miles and is served by 13 carriers, based on Bureau of Transportation Statistics reporting. Across 13,429 flights in the dataset, this route posts a 87.3% on-time rate with an average delay of 74.6 minutes when flights run late. Over the most recent 24 months of BTS data, 3,872 flights were recorded on this pairing — 38 cancelled (1.0%) and 2 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 13 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 13,429 total flights analyzed, the 87.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.6-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, Feb 2024 posted the best performance on this corridor at 96% on-time, while Jun 2025 came in at 58% on-time — a 38-point gap between best and worst recent month. For travelers evaluating the ATL to CHA route, the combination of a 87.3% on-time rate, 74.6-minute average delay, 1.0% recent cancellation rate, and 13 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.