ON TIMEBOARD

AS 600 on time

Alaska Airlines 600: Seattle to Las Vegas at 3:18 p.m. (past 12 months)

On time
79%
211 flights · likely 73–84%
Cancelled
0.5%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+57 min
average delay
Similar flights
80%
AS, same route & hour

About 1 in 5 AS 600 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (21%); 0.5% were cancelled. The typical flight landed 4 minutes early.

AS 600: SEA → LAS

Scheduled to leave Seattle at 3:18 p.m. local time. Over the past year it arrived on time 79% of the time (211 flights), in line with other AS flights on the route at that hour (80%). Last seen in the data Aug 18, 2026.

Month by month

40%70%100%Jun 2025: 50% on time (18 flights)50JunJul 2025: 61% on time (31 flights)61JulAug 2025: 50% on time (30 flights)50AugSep 2025: 69% on time (29 flights)69SepOct 2025: 76% on time (25 flights)76OctFeb 2026: too few flights (14 flights)FebMar 2026: 86% on time (29 flights)86MarApr 2026: 90% on time (30 flights)90AprMay 2026: 87% on time (31 flights)87MayJun 2026: 89% on time (18 flights)89JunJul 2026: 55% on time (22 flights)55JulAug 2026: too few flights (13 flights)Aug

By day of week

DayFlightsOn time
Monday3476%
Tuesday3491%
Wednesday2492%
Thursday3370%
Friday3459%
Saturday2085%
Sunday3284%

Why it was late

Air traffic & airport (NAS) 47%Airline (crew, maintenance, ops) 23%Late inbound plane 22%Severe weather 8%

All flights SEA → LAS · Connecting off AS 600? Check the risk

Questions

How often is AS 600 from SEA to LAS late?

Alaska Airlines 600 from Seattle, WA to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 21% of 211 scheduled flights between September 2025 and August 2026. 0.5% 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.