AS1421 HoustonIAH · 18:17 PortlandPDX · 20:50
AS1421 by Alaska Airlines flies from Houston (IAH) to Portland (PDX) for the Thu, Oct 22 departure.
departs IAH · on schedule
board checked 42m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAH and PDX 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.
How AS1421 actually runs
Pro Flight Search has tracked every published board update for AS1421 across the IAH and PDX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +0 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how AS1421 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 IAH and PDX published them.
Planning around AS1421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AS1421 Houston to Portland on-time performance, measured from the IAH and PDX airport boards.
https://proflightsearch.com/flight/AS1421
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