Juneau to Seattle

What the Data Says About JNU to SEA

The Juneau to Seattle corridor (JNU → SEA) covers roughly 909 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 8,737 flights in the dataset, this route posts a 84% on-time rate with an average delay of 65.6 minutes when flights run late. Over the most recent 24 months of BTS data, 3,191 flights were recorded on this pairing — 51 cancelled (1.6%) and 5 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 8,737 total flights analyzed, the 84% on-time figure is statistically meaningful rather than a small-sample fluke. The 65.6-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 94% on-time, while Jan 2024 came in at 71% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the JNU to SEA route, the combination of a 84% on-time rate, 65.6-minute average delay, 1.6% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.