AS254 SeattleSEA · 20:35 San DiegoSAN · 23:26
AS254 by Alaska Airlines flies from Seattle (SEA) to San Diego (SAN) for the Sat, Oct 17 departure.
today's SEA → SAN operation will not depart
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SEA and SAN are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to San Diego flights today
same route · Alaska AirlinesIf AS254 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to San Diego on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AS254 actually runs
Pro Flight Search has tracked every published board update for AS254 across the SEA and SAN boards: schedule changes, gate pushes and actual clocks. Combined risk score: 62.0/100. Based on airport operations, weather, and cached board history at SEA and SAN.
The verdict above is that record speaking, so it reflects how AS254 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SEA and SAN published them.
Planning around AS254? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AS254 Seattle to San Diego on-time performance, measured from the SEA and SAN airport boards.
https://proflightsearch.com/flight/AS254
.