ON TIMEBOARD

AS 229 on time

Alaska Airlines 229: Boise to Portland at 4:23 p.m. (past 12 months)

On time
87%
203 flights · likely 81–91%
Cancelled
0.0%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+62 min
average delay
Similar flights
88%
AS, same route & hour

About 1 in 8 AS 229 flights from Boise arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.0% were cancelled. The typical flight landed 10 minutes early.

AS 229: BOI → PDX

Scheduled to leave Boise at 4:23 p.m. local time. Over the past year it arrived on time 87% of the time (203 flights), in line with other AS flights on the route at that hour (88%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: too few flights (6 flights)OctNov 2025: 93% on time (29 flights)93NovDec 2025: 76% on time (29 flights)76DecJan 2026: 90% on time (31 flights)90JanFeb 2026: 92% on time (24 flights)92FebMar 2026: too few flights (11 flights)MarJun 2026: 89% on time (18 flights)89JunJul 2026: 74% on time (27 flights)74JulAug 2026: 89% on time (28 flights)89Aug

By day of week

DayFlightsOn time
Monday3391%
Tuesday2796%
Wednesday2896%
Thursday3184%
Friday3278%
Saturday19—
Sunday3379%

Why it was late

Late inbound plane 91%Airline (crew, maintenance, ops) 5%Air traffic & airport (NAS) 3%

All flights BOI → PDX · Connecting off AS 229? Check the risk

Questions

How often is AS 229 from BOI to PDX late?

Alaska Airlines 229 from Boise, ID to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 13% of 203 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.