About 1 in 6 AS 506 flights from San Diego arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.3% were cancelled. The typical flight landed 11 minutes early.
AS 506: SAN → IAD
Scheduled to leave San Diego at 10:34 a.m. local time. Over the past year it arrived on time 82% of the time (229 flights), worse than other AS flights on the route at that hour (88%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 33 | 79% |
| Tuesday | 32 | 88% |
| Wednesday | 32 | 94% |
| Thursday | 33 | 82% |
| Friday | 33 | 82% |
| Saturday | 33 | 79% |
| Sunday | 33 | 73% |
Why it was late
All flights SAN → IAD · Connecting off AS 506? Check the risk
Questions
How often is AS 506 from SAN to IAD late?
Alaska Airlines 506 from San Diego, CA to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 18% of 229 scheduled flights between September 2025 and August 2026. 1.3% 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.