About 1 in 4 AS 670 flights from Raleigh arrived 15+ minutes late, diverted or cancelled over the past year (25%); 0.0% were cancelled. The typical flight landed 0 minutes early.
AS 670: RDU → SEA
Scheduled to leave Raleigh at 7:02 a.m. local time. Over the past year it arrived on time 75% of the time (162 flights), worse than other AS flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 25 | 76% |
| Tuesday | 23 | 74% |
| Wednesday | 23 | 83% |
| Thursday | 22 | 86% |
| Friday | 24 | 63% |
| Saturday | 20 | 75% |
| Sunday | 25 | 72% |
Why it was late
All flights RDU → SEA · Connecting off AS 670? Check the risk
Questions
How often is AS 670 from RDU to SEA late?
Alaska Airlines 670 from Raleigh/Durham, NC to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 25% of 162 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.