Atlanta to Philadelphia

What the Data Says About ATL to PHL

The Atlanta to Philadelphia corridor (ATL → PHL) covers roughly 666 miles and is served by 45 carriers, based on Bureau of Transportation Statistics reporting. Across 32,104 flights in the dataset, this route posts a 80.2% on-time rate with an average delay of 74.5 minutes when flights run late. Over the most recent 24 months of BTS data, 11,460 flights were recorded on this pairing — 182 cancelled (1.6%) and 10 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 45 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 32,104 total flights analyzed, the 80.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 74.5-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, Feb 2024 posted the best performance on this corridor at 90% on-time, while Jun 2025 came in at 58% on-time — a 33-point gap between best and worst recent month. For travelers evaluating the ATL to PHL route, the combination of a 80.2% on-time rate, 74.5-minute average delay, 1.6% recent cancellation rate, and 45 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.