AS240Alaska Airlines · SEA → IAH
live · 11m ago
Route confirmed Alaska Airlines

AS240 SeattleSEA · 17:34 HoustonIAH · 23:59

AS240 by Alaska Airlines flies from Seattle (SEA) to Houston (IAH) for the Fri, Aug 21 departure.

Right nowOn time · gate N11
17:34

departs SEA · on schedule

Typical arrival+31 minmedian over 2 operations

The route today

live boards
SEASeattleOn-time likelySEA delay board →
IAHHoustonOn-time likelyIAH delay board →
SEA→IAHevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
1.1%Chance of cancellation
+2 minAvg hub delay right now

Conditions 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 →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Seattle to Houston flights today

same route · Alaska Airlines
AS438departs 10:52
AS1573departs 17:33
AS398departs 23:57

If AS240 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 AS240 actually runs

Pro Flight Search has tracked every published board update for AS240 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 +31 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how AS240 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
08-20SEA 17:34IAH 23:59 00:27 (+28)
08-19SEA IAH 23:59 00:30 (+31)

Board clocks recorded as SEA and IAH published them.

Planning around AS240? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — AS240 Seattle to Houston on-time performance, measured from the SEA and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/AS240
How we measure this →