About 1 in 4 AS 3 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (28%); 0.3% were cancelled. The typical flight landed 4 minutes early.
AS 3: DCA → SEA
Scheduled to leave Washington at 5:00 p.m. local time. Over the past year it arrived on time 72% of the time (363 flights), in line with other AS flights on the route at that hour (72%). Last seen in the data Aug 31, 2026.
Usually Alaska Airlines's last flight of the day from Washington to Seattle (100% of days). Alaska Airlines's last DCA–SEA flight was cancelled 0.3% of the time, against 1.1% for its earlier ones. If it's cancelled, the next Alaska Airlines flight is usually around 8:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 74% |
| Tuesday | 52 | 81% |
| Wednesday | 52 | 65% |
| Thursday | 51 | 61% |
| Friday | 52 | 75% |
| Saturday | 51 | 86% |
| Sunday | 52 | 62% |
Why it was late
Questions
How often is AS 3 from DCA to SEA late?
Alaska Airlines 3 from Washington, DC to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 28% of 363 scheduled flights between September 2025 and August 2026. 0.3% 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.