ON TIMEBOARD

AS 238 on time

Alaska Airlines 238: Seattle to Kona at 3:59 p.m. (past 12 months)

On time
75%
256 flights · likely 69–80%
Cancelled
1.2%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+54 min
average delay
Similar flights
78%
AS, same route & hour

About 1 in 4 AS 238 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (25%); 1.2% were cancelled. The typical flight landed 7 minutes early.

AS 238: SEA → KOA

Scheduled to leave Seattle at 3:59 p.m. local time. Over the past year it arrived on time 75% of the time (256 flights), in line with other AS flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Nov 2025: too few flights (10 flights)NovDec 2025: 87% on time (15 flights)87DecJan 2026: 61% on time (31 flights)61JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 57% on time (30 flights)57MarApr 2026: 100% on time (19 flights)100AprMay 2026: 90% on time (31 flights)90MayJun 2026: 83% on time (30 flights)83JunJul 2026: 74% on time (31 flights)74JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday3778%
Tuesday3580%
Wednesday3591%
Thursday3778%
Friday3858%
Saturday3762%
Sunday3776%

Why it was late

Late inbound plane 40%Airline (crew, maintenance, ops) 30%Air traffic & airport (NAS) 29%Severe weather 1%

All flights SEA → KOA · Connecting off AS 238? Check the risk

Questions

How often is AS 238 from SEA to KOA late?

Alaska Airlines 238 from Seattle, WA to Kona, HI arrived 15 or more minutes late, was diverted or was cancelled on 25% of 256 scheduled flights between September 2025 and August 2026. 1.2% 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.