AS438 SeattleSEA · 10:47 HoustonIAH · 17:14
AS438 by Alaska Airlines flies from Seattle (SEA) to Houston (IAH) for the Wed, Oct 28 departure.
arrived at IAH · 7 min late
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SEA and IAH 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 →
Tomorrow on this route
ForecastSeattle to Houston with Alaska Airlines · Thu 29 Oct, local date
- Chance a departure is cancelled
- 0.2%2.0× usual
- Chance a departure leaves 60+ min late
- 10%1.0× usual
Forecast weather: 93% chance of rain at Seattle
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to Houston flights today
same route · Alaska AirlinesIf AS438 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to Houston 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 AS438 actually runs
Pro Flight Search has tracked every published board update for AS438 across the SEA and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +7 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS438 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 IAH published them.
Planning around AS438? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS438 Seattle to Houston on-time performance, measured from the SEA and IAH airport boards.
https://proflightsearch.com/flight/AS438
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