Charlotte to Boston

What the Data Says About CLT to BOS

The Charlotte to Boston corridor (CLT → BOS) covers roughly 728 miles and is served by 22 carriers, based on Bureau of Transportation Statistics reporting. Across 25,149 flights in the dataset, this route posts a 79.1% on-time rate with an average delay of 71.7 minutes when flights run late. Over the most recent 24 months of BTS data, 9,478 flights were recorded on this pairing — 137 cancelled (1.4%) and 12 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 22 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 25,149 total flights analyzed, the 79.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 71.7-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 85% on-time, while Sep 2025 came in at 61% on-time — a 25-point gap between best and worst recent month. For travelers evaluating the CLT to BOS route, the combination of a 79.1% on-time rate, 71.7-minute average delay, 1.4% recent cancellation rate, and 22 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.