About 1 in 3 AS 550 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (34%); 1.0% were cancelled. The typical flight landed 3 minutes late.
AS 550: DFW → SEA
Scheduled to leave Dallas at 8:45 p.m. local time. Over the past year it arrived on time 66% of the time (207 flights), in line with other AS flights on the route at that hour (63%). Last seen in the data Aug 31, 2026.
Usually Alaska Airlines's last flight of the day from Dallas to Seattle (100% of days). Alaska Airlines's last DFW–SEA flight was cancelled 1.6% of the time, against 1.1% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 6:24 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 32 | 75% |
| Tuesday | 25 | 64% |
| Wednesday | 26 | 62% |
| Thursday | 33 | 58% |
| Friday | 32 | 56% |
| Saturday | 26 | 88% |
| Sunday | 33 | 61% |
Why it was late
All flights DFW → SEA · Connecting off AS 550? Check the risk
Questions
How often is AS 550 from DFW to SEA late?
Alaska Airlines 550 from Dallas/Fort Worth, TX to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 34% of 207 scheduled flights between September 2025 and August 2026. 1.0% 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.