Fairbanks to Seattle

What the Data Says About FAI to SEA

The Fairbanks to Seattle corridor (FAI → SEA) covers roughly 1,533 miles and is served by 9 carriers, based on Bureau of Transportation Statistics reporting. Across 11,702 flights in the dataset, this route posts a 82.2% on-time rate with an average delay of 63.5 minutes when flights run late. Over the most recent 24 months of BTS data, 4,712 flights were recorded on this pairing — 48 cancelled (1.0%) and 0 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 9 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,702 total flights analyzed, the 82.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 63.5-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, Mar 2025 posted the best performance on this corridor at 92% on-time, while Dec 2025 came in at 68% on-time — a 24-point gap between best and worst recent month. For travelers evaluating the FAI to SEA route, the combination of a 82.2% on-time rate, 63.5-minute average delay, 1.0% recent cancellation rate, and 9 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.