Miami to Raleigh/Durham

What the Data Says About MIA to RDU

The Miami to Raleigh/Durham corridor (MIA → RDU) covers roughly 700 miles and is served by 47 carriers, based on Bureau of Transportation Statistics reporting. Across 12,073 flights in the dataset, this route posts a 75.2% on-time rate with an average delay of 76.7 minutes when flights run late. Over the most recent 24 months of BTS data, 4,943 flights were recorded on this pairing — 70 cancelled (1.4%) and 7 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 47 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 12,073 total flights analyzed, the 75.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 76.7-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 2025 posted the best performance on this corridor at 85% on-time, while Aug 2024 came in at 55% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the MIA to RDU route, the combination of a 75.2% on-time rate, 76.7-minute average delay, 1.4% recent cancellation rate, and 47 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.