Knoxville to Sanford

What the Data Says About TYS to SFB

The Knoxville to Sanford corridor (TYS → SFB) covers roughly 511 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 2,743 flights in the dataset, this route posts a 75.3% on-time rate with an average delay of 82.2 minutes when flights run late. Over the most recent 24 months of BTS data, 1,280 flights were recorded on this pairing — 15 cancelled (1.2%) and 2 diverted (0.2%). 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 2,743 total flights analyzed, the 75.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 82.2-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, Mar 2025 posted the best performance on this corridor at 82% on-time, while Jun 2025 came in at 44% on-time — a 38-point gap between best and worst recent month. For travelers evaluating the TYS to SFB route, the combination of a 75.3% on-time rate, 82.2-minute average delay, 1.2% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.