Greensboro/High Point to Miami

What the Data Says About GSO to MIA

The Greensboro/High Point to Miami corridor (GSO → MIA) covers roughly 710 miles and is served by 4 carriers, based on Bureau of Transportation Statistics reporting. Across 1,986 flights in the dataset, this route posts a 90.5% on-time rate with an average delay of 85.6 minutes when flights run late. Over the most recent 24 months of BTS data, 863 flights were recorded on this pairing — 7 cancelled (0.8%) and 2 diverted (0.2%). 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 1,986 total flights analyzed, the 90.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 85.6-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, Mar 2025 posted the best performance on this corridor at 96% on-time, while Dec 2025 came in at 78% on-time — a 18-point gap between best and worst recent month. For travelers evaluating the GSO to MIA route, the combination of a 90.5% on-time rate, 85.6-minute average delay, 0.8% recent cancellation rate, and 4 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.