Washington to Chicago

What the Data Says About DCA to ORD

The Washington to Chicago corridor (DCA → ORD) covers roughly 612 miles and is served by 33 carriers, based on Bureau of Transportation Statistics reporting. Across 33,634 flights in the dataset, this route posts a 83.8% on-time rate with an average delay of 89.4 minutes when flights run late. Over the most recent 24 months of BTS data, 12,919 flights were recorded on this pairing — 269 cancelled (2.1%) and 18 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 33 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 33,634 total flights analyzed, the 83.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 89.4-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 2024 posted the best performance on this corridor at 91% on-time, while Jul 2025 came in at 68% on-time — a 23-point gap between best and worst recent month. For travelers evaluating the DCA to ORD route, the combination of a 83.8% on-time rate, 89.4-minute average delay, 2.1% recent cancellation rate, and 33 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.