ON TIMEBOARD

AS 624 on time

Alaska Airlines 624: Seattle to Indianapolis at 10:39 p.m. (past 12 months)

On time
78%
147 flights · likely 70–84%
Cancelled
0.0%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+38 min
average delay
Similar flights
73%
AS, same route & hour

About 1 in 4 AS 624 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.0% were cancelled. The typical flight landed 9 minutes early.

AS 624: SEA → IND

Scheduled to leave Seattle at 10:39 p.m. local time. Over the past year it arrived on time 78% of the time (147 flights), better than other AS flights on the route at that hour (73%). Last seen in the data Aug 31, 2026.

Usually Alaska Airlines's last flight of the day from Seattle to Indianapolis (99% of days). Alaska Airlines's last SEA–IND flight was cancelled 0.0% of the time, against 0.9% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 9:09 a.m. the next morning.

Month by month

40%70%100%Nov 2025: too few flights (9 flights)NovDec 2025: too few flights (11 flights)DecJan 2026: too few flights (5 flights)JanMar 2026: too few flights (8 flights)MarApr 2026: 81% on time (21 flights)81AprMay 2026: too few flights (11 flights)MayJun 2026: 76% on time (21 flights)76JunJul 2026: 73% on time (30 flights)73JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday2496%
Tuesday17—
Wednesday16—
Thursday2167%
Friday2576%
Saturday19—
Sunday2580%

Why it was late

Airline (crew, maintenance, ops) 56%Late inbound plane 34%Air traffic & airport (NAS) 10%

All flights SEA → IND · Connecting off AS 624? Check the risk

Questions

How often is AS 624 from SEA to IND late?

Alaska Airlines 624 from Seattle, WA to Indianapolis, IN arrived 15 or more minutes late, was diverted or was cancelled on 22% of 147 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.