About 1 in 7 AS 677 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.0% were cancelled. The typical flight landed 7 minutes early.
AS 677: SEA → RDU
Scheduled to leave Seattle at 9:33 p.m. local time. Over the past year it arrived on time 86% of the time (143 flights), in line with other AS flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.
Usually Alaska Airlines's last flight of the day from Seattle to Raleigh (100% of days). Alaska Airlines's last SEA–RDU flight was cancelled 0.0% of the time, against 0.0% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 8:20 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 24 | 88% |
| Tuesday | 17 | — |
| Wednesday | 14 | — |
| Thursday | 21 | 76% |
| Friday | 20 | 90% |
| Saturday | 22 | 82% |
| Sunday | 25 | 88% |
Why it was late
All flights SEA → RDU · Connecting off AS 677? Check the risk
Questions
How often is AS 677 from SEA to RDU late?
Alaska Airlines 677 from Seattle, WA to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 14% of 143 scheduled flights between September 2025 and August 2026. 0.0% 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 Alaska Airlines for today's flight. Method.