ON TIMEBOARD

AS 524 on time

Alaska Airlines 524: Seattle to Los Angeles at 6:10 p.m. (past 12 months)

On time
79%
276 flights · likely 73–83%
Cancelled
0.4%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+40 min
average delay
Similar flights
82%
AS, same route & hour

About 1 in 5 AS 524 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (21%); 0.4% were cancelled. The typical flight landed 4 minutes early.

AS 524: SEA → LAX

Scheduled to leave Seattle at 6:10 p.m. local time. Over the past year it arrived on time 79% of the time (276 flights), worse than other AS flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 89% on time (28 flights)89NovDec 2025: 61% on time (31 flights)61DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 90% on time (31 flights)90MarApr 2026: 95% on time (21 flights)95AprMay 2026: 75% on time (16 flights)75MayJun 2026: 79% on time (28 flights)79JunJul 2026: 72% on time (29 flights)72JulAug 2026: 52% on time (27 flights)52Aug

By day of week

DayFlightsOn time
Monday4173%
Tuesday4093%
Wednesday3784%
Thursday4078%
Friday3770%
Saturday3987%
Sunday4267%

Why it was late

Late inbound plane 44%Airline (crew, maintenance, ops) 32%Air traffic & airport (NAS) 20%Severe weather 4%

All flights SEA → LAX · Connecting off AS 524? Check the risk

Questions

How often is AS 524 from SEA to LAX late?

Alaska Airlines 524 from Seattle, WA to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 21% of 276 scheduled flights between September 2025 and August 2026. 0.4% 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.