About 1 in 5 AS 500 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (21%); 1.2% were cancelled. The typical flight landed 7 minutes early.
AS 500: SEA → IND
Scheduled to leave Seattle at 9:09 a.m. local time. Over the past year it arrived on time 79% of the time (326 flights), in line with other AS flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 48 | 81% |
| Tuesday | 47 | 89% |
| Wednesday | 46 | 78% |
| Thursday | 46 | 83% |
| Friday | 47 | 72% |
| Saturday | 46 | 74% |
| Sunday | 46 | 78% |
Why it was late
All flights SEA → IND · Connecting off AS 500? Check the risk
AS 500: IND → SEA
Scheduled to leave Indianapolis at 5:19 p.m. local time. Over the past year it arrived on time 70% of the time (320 flights), better than other AS flights on the route at that hour (65%). Last seen in the data Aug 31, 2026.
Usually Alaska Airlines's last flight of the day from Indianapolis to Seattle (67% of days). Alaska Airlines's last IND–SEA flight was cancelled 0.5% of the time, against 1.4% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 7:04 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 75% |
| Tuesday | 34 | 71% |
| Wednesday | 41 | 63% |
| Thursday | 48 | 73% |
| Friday | 52 | 77% |
| Saturday | 41 | 66% |
| Sunday | 51 | 65% |
Why it was late
All flights IND → SEA · Connecting off AS 500? Check the risk
Questions
How often is AS 500 from SEA to IND late?
Alaska Airlines 500 from Seattle, WA to Indianapolis, IN arrived 15 or more minutes late, was diverted or was cancelled on 21% of 326 scheduled flights between September 2025 and August 2026. 1.2% were cancelled.
How often is AS 500 from IND to SEA late?
Alaska Airlines 500 from Indianapolis, IN to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 30% of 320 scheduled flights between September 2025 and August 2026. 1.6% 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.