ON TIMEBOARD

AS 1301 on time

Alaska Airlines 1301: Los Angeles to Seattle at 6:09 p.m. (past 12 months)

On time
87%
302 flights · likely 82–90%
Cancelled
0.0%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+49 min
average delay
Similar flights
91%
AS, same route & hour

About 1 in 8 AS 1301 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.0% were cancelled. The typical flight landed 11 minutes early.

AS 1301: LAX → SEA

Scheduled to leave Los Angeles at 6:09 p.m. local time. Over the past year it arrived on time 87% of the time (302 flights), worse than other AS flights on the route at that hour (91%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (30 flights)100SepOct 2025: 97% on time (31 flights)97OctNov 2025: 96% on time (28 flights)96NovDec 2025: 89% on time (19 flights)89DecJan 2026: too few flights (6 flights)JanFeb 2026: 94% on time (17 flights)94FebMar 2026: 77% on time (31 flights)77MarApr 2026: 87% on time (30 flights)87AprMay 2026: 77% on time (31 flights)77MayJun 2026: 85% on time (27 flights)85JunJul 2026: 70% on time (27 flights)70JulAug 2026: 80% on time (25 flights)80Aug

By day of week

DayFlightsOn time
Monday4693%
Tuesday4393%
Wednesday4180%
Thursday4482%
Friday4774%
Saturday3597%
Sunday4689%

Why it was late

Late inbound plane 46%Airline (crew, maintenance, ops) 28%Air traffic & airport (NAS) 20%Severe weather 7%

All flights LAX → SEA · Connecting off AS 1301? Check the risk

Questions

How often is AS 1301 from LAX to SEA late?

Alaska Airlines 1301 from Los Angeles, CA to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 13% of 302 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.