Atlanta to Key West

What the Data Says About ATL to EYW

The Atlanta to Key West corridor (ATL → EYW) covers roughly 646 miles and is served by 5 carriers, based on Bureau of Transportation Statistics reporting. Across 9,312 flights in the dataset, this route posts a 83.9% on-time rate with an average delay of 81.2 minutes when flights run late. Over the most recent 24 months of BTS data, 2,929 flights were recorded on this pairing — 40 cancelled (1.4%) and 22 diverted (0.8%). Those baseline metrics tell you what to expect before you book.

Having 5 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 9,312 total flights analyzed, the 83.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 81.2-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, Sep 2025 posted the best performance on this corridor at 95% on-time, while Jul 2025 came in at 67% on-time — a 28-point gap between best and worst recent month. For travelers evaluating the ATL to EYW route, the combination of a 83.9% on-time rate, 81.2-minute average delay, 1.4% recent cancellation rate, and 5 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.