Honolulu to Seattle

What the Data Says About HNL to SEA

The Honolulu to Seattle corridor (HNL → SEA) covers roughly 2,677 miles and is served by 7 carriers, based on Bureau of Transportation Statistics reporting. Across 14,557 flights in the dataset, this route posts a 79.9% on-time rate with an average delay of 65.5 minutes when flights run late. Over the most recent 24 months of BTS data, 5,908 flights were recorded on this pairing — 76 cancelled (1.3%) and 6 diverted (0.1%). 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 14,557 total flights analyzed, the 79.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 65.5-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, Sep 2024 posted the best performance on this corridor at 88% on-time, while Jul 2025 came in at 70% on-time — a 18-point gap between best and worst recent month. For travelers evaluating the HNL to SEA route, the combination of a 79.9% on-time rate, 65.5-minute average delay, 1.3% recent cancellation rate, and 7 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.