About 1 in 5 AS 424 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.6% were cancelled. The typical flight landed 5 minutes early.
AS 424: SEA → DFW
Scheduled to leave Seattle at 5:56 p.m. local time. Over the past year it arrived on time 78% of the time (320 flights), in line with other AS flights on the route at that hour (79%). Last seen in the data Aug 17, 2026.
Usually Alaska Airlines's last flight of the day from Seattle to Dallas (60% of days). Alaska Airlines's last SEA–DFW flight was cancelled 0.8% of the time, against 0.9% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 6:02 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 48 | 81% |
| Tuesday | 47 | 89% |
| Wednesday | 46 | 85% |
| Thursday | 45 | 76% |
| Friday | 46 | 67% |
| Saturday | 41 | 80% |
| Sunday | 47 | 70% |
Why it was late
All flights SEA → DFW · Connecting off AS 424? Check the risk
Questions
How often is AS 424 from SEA to DFW late?
Alaska Airlines 424 from Seattle, WA to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 22% of 320 scheduled flights between September 2025 and August 2026. 0.6% 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.