Seattle to Kahului

What the Data Says About SEA to OGG

The Seattle to Kahului corridor (SEA → OGG) covers roughly 2,640 miles and is served by 5 carriers, based on Bureau of Transportation Statistics reporting. Across 9,909 flights in the dataset, this route posts a 81.4% on-time rate with an average delay of 59.8 minutes when flights run late. Over the most recent 24 months of BTS data, 3,559 flights were recorded on this pairing — 55 cancelled (1.5%) and 26 diverted (0.7%). Those baseline metrics tell you what to expect before you book.

Having 5 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 9,909 total flights analyzed, the 81.4% on-time figure is statistically meaningful rather than a small-sample fluke. The 59.8-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, Apr 2025 posted the best performance on this corridor at 93% on-time, while Dec 2025 came in at 70% on-time — a 22-point gap between best and worst recent month. For travelers evaluating the SEA to OGG route, the combination of a 81.4% on-time rate, 59.8-minute average delay, 1.5% recent cancellation rate, and 5 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.