Charleston to Philadelphia

What the Data Says About CHS to PHL

The Charleston to Philadelphia corridor (CHS → PHL) covers roughly 550 miles and is served by 36 carriers, based on Bureau of Transportation Statistics reporting. Across 6,767 flights in the dataset, this route posts a 81.9% on-time rate with an average delay of 93.5 minutes when flights run late. Over the most recent 24 months of BTS data, 2,811 flights were recorded on this pairing — 52 cancelled (1.8%) and 3 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 36 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 6,767 total flights analyzed, the 81.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 93.5-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, Oct 2024 posted the best performance on this corridor at 89% on-time, while Jan 2024 came in at 67% on-time — a 22-point gap between best and worst recent month. For travelers evaluating the CHS to PHL route, the combination of a 81.9% on-time rate, 93.5-minute average delay, 1.8% recent cancellation rate, and 36 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.