ON TIMEBOARD

AS 564 on time

Alaska Airlines 564: Seattle to Kansas City at 6:27 p.m. (past 12 months)

On time
78%
216 flights · likely 72–83%
Cancelled
0.9%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+42 min
average delay
Similar flights
77%
AS, same route & hour

About 1 in 5 AS 564 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.9% were cancelled. The typical flight landed 5 minutes early.

AS 564: SEA → MCI

Scheduled to leave Seattle at 6:27 p.m. local time. Over the past year it arrived on time 78% of the time (216 flights), in line with other AS flights on the route at that hour (77%). Last seen in the data Aug 17, 2026.

Usually Alaska Airlines's last flight of the day from Seattle to Kansas City (97% of days). Alaska Airlines's last SEA–MCI flight was cancelled 0.7% of the time, against 0.3% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 7:48 a.m. the next morning.

Month by month

30%65%100%Aug 2025: 38% on time (26 flights)38AugSep 2025: 65% on time (17 flights)65SepOct 2025: 78% on time (27 flights)78OctNov 2025: 75% on time (20 flights)75NovDec 2025: 70% on time (23 flights)70DecJan 2026: too few flights (5 flights)JanMar 2026: too few flights (14 flights)MarApr 2026: 93% on time (30 flights)93AprMay 2026: too few flights (12 flights)MayJun 2026: 81% on time (21 flights)81JunJul 2026: 77% on time (30 flights)77JulAug 2026: 71% on time (17 flights)71Aug

By day of week

DayFlightsOn time
Monday3770%
Tuesday2383%
Wednesday2483%
Thursday3566%
Friday3577%
Saturday2692%
Sunday3683%

Why it was late

Late inbound plane 42%Airline (crew, maintenance, ops) 41%Air traffic & airport (NAS) 16%Severe weather 1%

All flights SEA → MCI · Connecting off AS 564? Check the risk

Questions

How often is AS 564 from SEA to MCI late?

Alaska Airlines 564 from Seattle, WA to Kansas City, MO arrived 15 or more minutes late, was diverted or was cancelled on 22% of 216 scheduled flights between September 2025 and August 2026. 0.9% 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 Alaska Airlines for today's flight. Method.