About 1 in 10 AS 563 flights from Kansas City arrived 15+ minutes late, diverted or cancelled over the past year (10%); 1.0% were cancelled. The typical flight landed 8 minutes early.
AS 563: MCI → SEA
Scheduled to leave Kansas City at 7:00 a.m. local time. Over the past year it arrived on time 90% of the time (288 flights), in line with other AS flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 43 | 98% |
| Tuesday | 42 | 86% |
| Wednesday | 41 | 93% |
| Thursday | 42 | 93% |
| Friday | 42 | 81% |
| Saturday | 36 | 83% |
| Sunday | 42 | 93% |
Why it was late
All flights MCI → SEA · Connecting off AS 563? Check the risk
Questions
How often is AS 563 from MCI to SEA late?
Alaska Airlines 563 from Kansas City, MO to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 10% of 288 scheduled flights between September 2025 and August 2026. 1.0% 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.