ON TIMEBOARD

AS 1356 on time

Alaska Airlines 1356: Portland to Spokane at 9:50 p.m. (past 12 months)

On time
83%
210 flights · likely 78–88%
Cancelled
0.9%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+40 min
average delay
Similar flights
86%
AS, same route & hour

About 1 in 6 AS 1356 flights from Portland arrived 15+ minutes late, diverted or cancelled over the past year (17%); 0.9% were cancelled. The typical flight landed 4 minutes early.

AS 1356: PDX → GEG

Scheduled to leave Portland at 9:50 p.m. local time. Over the past year it arrived on time 83% of the time (210 flights), in line with other AS flights on the route at that hour (86%). Last seen in the data Aug 18, 2026.

Usually Alaska Airlines's last flight of the day from Portland to Spokane (94% of days). Alaska Airlines's last PDX–GEG flight was cancelled 1.1% of the time, against 0.6% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 7:03 a.m. the next morning.

Month by month

40%70%100%Nov 2025: too few flights (9 flights)NovDec 2025: 80% on time (15 flights)80DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 65% on time (17 flights)65MarApr 2026: too few flights (5 flights)AprMay 2026: 85% on time (26 flights)85MayJun 2026: 90% on time (30 flights)90JunJul 2026: 87% on time (31 flights)87JulAug 2026: 72% on time (18 flights)72Aug

By day of week

DayFlightsOn time
Monday3284%
Tuesday2893%
Wednesday2789%
Thursday3080%
Friday3275%
Saturday2990%
Sunday3275%

Why it was late

Airline (crew, maintenance, ops) 57%Late inbound plane 34%Air traffic & airport (NAS) 8%Severe weather 1%

All flights PDX → GEG · Connecting off AS 1356? Check the risk

Questions

How often is AS 1356 from PDX to GEG late?

Alaska Airlines 1356 from Portland, OR to Spokane, WA arrived 15 or more minutes late, was diverted or was cancelled on 17% of 210 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.