Seattle to Santa Barbara

What the Data Says About SEA to SBA

The Seattle to Santa Barbara corridor (SEA → SBA) covers roughly 908 miles and is served by 7 carriers, based on Bureau of Transportation Statistics reporting. Across 2,214 flights in the dataset, this route posts a 86.1% on-time rate with an average delay of 55.5 minutes when flights run late. Over the most recent 24 months of BTS data, 830 flights were recorded on this pairing — 5 cancelled (0.6%) and 4 diverted (0.5%). Those baseline metrics tell you what to expect before you book.

Having 7 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,214 total flights analyzed, the 86.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 55.5-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, Jun 2025 posted the best performance on this corridor at 75% on-time, while Jul 2025 came in at 74% on-time — a 1-point gap between best and worst recent month. For travelers evaluating the SEA to SBA route, the combination of a 86.1% on-time rate, 55.5-minute average delay, 0.6% recent cancellation rate, and 7 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.