Baltimore to Buffalo

What the Data Says About BWI to BUF

The Baltimore to Buffalo corridor (BWI → BUF) covers roughly 281 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 9,340 flights in the dataset, this route posts a 74.6% on-time rate with an average delay of 55.2 minutes when flights run late. Over the most recent 24 months of BTS data, 3,378 flights were recorded on this pairing — 44 cancelled (1.3%) 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 9,340 total flights analyzed, the 74.6% on-time figure is statistically meaningful rather than a small-sample fluke. The 55.2-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, Sep 2025 posted the best performance on this corridor at 87% on-time, while Jul 2024 came in at 50% on-time — a 37-point gap between best and worst recent month. For travelers evaluating the BWI to BUF route, the combination of a 74.6% on-time rate, 55.2-minute average delay, 1.3% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.