ON TIMEBOARD

AS 447 on time

Alaska Airlines 447: Portland to Boise at 9:40 p.m. (past 12 months)

On time
84%
185 flights · likely 78–88%
Cancelled
0.5%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+36 min
average delay
Similar flights
82%
AS, same route & hour

About 1 in 6 AS 447 flights from Portland arrived 15+ minutes late, diverted or cancelled over the past year (16%); 0.5% were cancelled. The typical flight landed 7 minutes early.

AS 447: PDX → BOI

Scheduled to leave Portland at 9:40 p.m. local time. Over the past year it arrived on time 84% of the time (185 flights), in line with other AS flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Usually Alaska Airlines's last flight of the day from Portland to Boise (100% of days). Alaska Airlines's last PDX–BOI flight was cancelled 0.5% of the time, against 0.8% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 7:00 a.m. the next morning.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 86% on time (29 flights)86NovDec 2025: 69% on time (29 flights)69DecJan 2026: 70% on time (20 flights)70JanFeb 2026: 83% on time (23 flights)83FebMar 2026: 82% on time (17 flights)82MarApr 2026: too few flights (9 flights)AprMay 2026: 90% on time (30 flights)90MayJun 2026: too few flights (9 flights)JunAug 2026: too few flights (13 flights)Aug

By day of week

DayFlightsOn time
Monday3080%
Tuesday2391%
Wednesday2383%
Thursday2879%
Friday2983%
Saturday2277%
Sunday3093%

Why it was late

Late inbound plane 40%Air traffic & airport (NAS) 32%Airline (crew, maintenance, ops) 27%

All flights PDX → BOI · Connecting off AS 447? Check the risk

Questions

How often is AS 447 from PDX to BOI late?

Alaska Airlines 447 from Portland, OR to Boise, ID arrived 15 or more minutes late, was diverted or was cancelled on 16% of 185 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.