About 1 in 8 DL 485 flights from Kona arrived 15+ minutes late, diverted or cancelled over the past year (12%); 2.9% were cancelled. The typical flight landed 17 minutes early.
DL 485: KOA → SEA
Scheduled to leave Kona at 8:50 p.m. local time. Over the past year it arrived on time 88% of the time (348 flights), in line with other DL flights on the route at that hour (88%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 50 | 90% |
| Tuesday | 50 | 94% |
| Wednesday | 50 | 84% |
| Thursday | 50 | 94% |
| Friday | 50 | 86% |
| Saturday | 49 | 84% |
| Sunday | 49 | 86% |
Why it was late
All flights KOA → SEA · Connecting off DL 485? Check the risk
Questions
How often is DL 485 from KOA to SEA late?
Delta Air Lines 485 from Kona, HI to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 12% of 348 scheduled flights between September 2025 and August 2026. 2.9% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.