Washington to Martha's Vineyard

What the Data Says About DCA to MVY

The Washington to Martha's Vineyard corridor (DCA → MVY) covers roughly 383 miles and is served by 2 carriers, based on Bureau of Transportation Statistics reporting. Across 1,039 flights in the dataset, this route posts a 84.1% on-time rate with an average delay of 72.3 minutes when flights run late. Over the most recent 24 months of BTS data, 1,039 flights were recorded on this pairing — 26 cancelled (2.5%) and 3 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 2 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 1,039 total flights analyzed, the 84.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 72.3-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, Aug 2021 posted the best performance on this corridor at 95% on-time, while Jul 2023 came in at 71% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the DCA to MVY route, the combination of a 84.1% on-time rate, 72.3-minute average delay, 2.5% recent cancellation rate, and 2 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.