Hartford to Baltimore

What the Data Says About BDL to BWI

The Hartford to Baltimore corridor (BDL → BWI) covers roughly 283 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 9,089 flights in the dataset, this route posts a 86.3% on-time rate with an average delay of 63.0 minutes when flights run late. Over the most recent 24 months of BTS data, 3,435 flights were recorded on this pairing — 33 cancelled (1.0%) and 5 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 1 carrier on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 9,089 total flights analyzed, the 86.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 63.0-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, Jan 2025 posted the best performance on this corridor at 95% on-time, while Dec 2025 came in at 68% on-time — a 27-point gap between best and worst recent month. For travelers evaluating the BDL to BWI route, the combination of a 86.3% on-time rate, 63.0-minute average delay, 1.0% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.