About 1 in 5 AS 450 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (19%); 0.6% were cancelled. The typical flight landed 7 minutes early.
AS 450: SEA → CMH
Scheduled to leave Seattle at 9:41 a.m. local time. Over the past year it arrived on time 81% of the time (344 flights), in line with other AS flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 75% |
| Tuesday | 42 | 86% |
| Wednesday | 52 | 87% |
| Thursday | 51 | 80% |
| Friday | 52 | 75% |
| Saturday | 42 | 86% |
| Sunday | 52 | 77% |
Why it was late
All flights SEA → CMH · Connecting off AS 450? Check the risk
AS 450: CMH → SEA
Scheduled to leave Columbus at 6:07 p.m. local time. Over the past year it arrived on time 66% of the time (304 flights), in line with other AS flights on the route at that hour (65%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 48 | 67% |
| Tuesday | 37 | 65% |
| Wednesday | 46 | 67% |
| Thursday | 46 | 63% |
| Friday | 47 | 66% |
| Saturday | 33 | 76% |
| Sunday | 47 | 60% |
Why it was late
All flights CMH → SEA · Connecting off AS 450? Check the risk
Questions
How often is AS 450 from SEA to CMH late?
Alaska Airlines 450 from Seattle, WA to Columbus, OH arrived 15 or more minutes late, was diverted or was cancelled on 19% of 344 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
How often is AS 450 from CMH to SEA late?
Alaska Airlines 450 from Columbus, OH to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 34% of 304 scheduled flights between September 2025 and August 2026. 0.7% 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.