Washington to Greensboro/High Point

What the Data Says About DCA to GSO

The Washington to Greensboro/High Point corridor (DCA → GSO) covers roughly 248 miles and is served by 8 carriers, based on Bureau of Transportation Statistics reporting. Across 3,961 flights in the dataset, this route posts a 77.3% on-time rate with an average delay of 74.9 minutes when flights run late. Over the most recent 24 months of BTS data, 1,537 flights were recorded on this pairing — 63 cancelled (4.1%) and 2 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 8 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 3,961 total flights analyzed, the 77.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.9-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 2024 posted the best performance on this corridor at 88% on-time, while Jun 2025 came in at 48% on-time — a 40-point gap between best and worst recent month. For travelers evaluating the DCA to GSO route, the combination of a 77.3% on-time rate, 74.9-minute average delay, 4.1% recent cancellation rate, and 8 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.