ON TIMEBOARD

AS 1355 on time

Alaska Airlines 1355: Los Angeles to Portland at 11:23 a.m. (past 12 months)

On time
82%
290 flights · likely 77–86%
Cancelled
1.0%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+46 min
average delay
Similar flights
86%
AS, same route & hour

About 1 in 6 AS 1355 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.0% were cancelled. The typical flight landed 8 minutes early.

AS 1355: LAX → PDX

Scheduled to leave Los Angeles at 11:23 a.m. local time. Over the past year it arrived on time 82% of the time (290 flights), worse than other AS flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 96% on time (26 flights)96NovDec 2025: 71% on time (28 flights)71DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 84% on time (31 flights)84MarApr 2026: 86% on time (29 flights)86AprMay 2026: 90% on time (29 flights)90MayJun 2026: 78% on time (27 flights)78JunJul 2026: 74% on time (27 flights)74JulAug 2026: 75% on time (28 flights)75Aug

By day of week

DayFlightsOn time
Monday4584%
Tuesday4482%
Wednesday4480%
Thursday4477%
Friday4381%
Saturday2871%
Sunday4295%

Why it was late

Late inbound plane 35%Air traffic & airport (NAS) 34%Airline (crew, maintenance, ops) 31%

All flights LAX → PDX · Connecting off AS 1355? Check the risk

Questions

How often is AS 1355 from LAX to PDX late?

Alaska Airlines 1355 from Los Angeles, CA to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 18% of 290 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.