Dallas/Fort Worth to Louisville

What the Data Says About DFW to SDF

The Dallas/Fort Worth to Louisville corridor (DFW → SDF) covers roughly 733 miles and is served by 28 carriers, based on Bureau of Transportation Statistics reporting. Across 11,290 flights in the dataset, this route posts a 75.7% on-time rate with an average delay of 81.2 minutes when flights run late. Over the most recent 24 months of BTS data, 4,246 flights were recorded on this pairing — 114 cancelled (2.7%) and 6 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 28 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,290 total flights analyzed, the 75.7% 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, Oct 2024 posted the best performance on this corridor at 90% on-time, while Jun 2025 came in at 55% on-time — a 36-point gap between best and worst recent month. For travelers evaluating the DFW to SDF route, the combination of a 75.7% on-time rate, 81.2-minute average delay, 2.7% recent cancellation rate, and 28 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.