About 1 in 3 AS 733 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (32%); 0.7% were cancelled. The typical flight landed 0 minutes early.
AS 733: SEA → SLC
Scheduled to leave Seattle at 11:51 a.m. local time. Over the past year it arrived on time 68% of the time (271 flights), in line with other AS flights on the route at that hour (70%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 41 | 59% |
| Tuesday | 40 | 70% |
| Wednesday | 40 | 78% |
| Thursday | 40 | 57% |
| Friday | 39 | 77% |
| Saturday | 31 | 61% |
| Sunday | 40 | 73% |
Why it was late
All flights SEA → SLC · Connecting off AS 733? Check the risk
Questions
How often is AS 733 from SEA to SLC late?
Alaska Airlines 733 from Seattle, WA to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 32% of 271 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.