Atlanta to Washington

What the Data Says About ATL to DCA

The Atlanta to Washington corridor (ATL → DCA) covers roughly 547 miles and is served by 42 carriers, based on Bureau of Transportation Statistics reporting. Across 35,757 flights in the dataset, this route posts a 79.9% on-time rate with an average delay of 69.5 minutes when flights run late. Over the most recent 24 months of BTS data, 13,740 flights were recorded on this pairing — 285 cancelled (2.1%) and 64 diverted (0.5%). Those baseline metrics tell you what to expect before you book.

Having 42 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 35,757 total flights analyzed, the 79.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 69.5-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 87% on-time, while Feb 2025 came in at 57% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the ATL to DCA route, the combination of a 79.9% on-time rate, 69.5-minute average delay, 2.1% recent cancellation rate, and 42 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.