Burlington to Washington

What the Data Says About BTV to IAD

The Burlington to Washington corridor (BTV → IAD) covers roughly 441 miles and is served by 9 carriers, based on Bureau of Transportation Statistics reporting. Across 2,244 flights in the dataset, this route posts a 87.8% on-time rate with an average delay of 83.4 minutes when flights run late. Over the most recent 24 months of BTS data, 1,240 flights were recorded on this pairing — 21 cancelled (1.7%) and 0 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 9 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,244 total flights analyzed, the 87.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 83.4-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, Jun 2024 posted the best performance on this corridor at 98% on-time, while Jul 2025 came in at 81% on-time — a 17-point gap between best and worst recent month. For travelers evaluating the BTV to IAD route, the combination of a 87.8% on-time rate, 83.4-minute average delay, 1.7% recent cancellation rate, and 9 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.