AS438Alaska Airlines · SEA → IAH
live · 2m ago
Route confirmed Alaska Airlines

AS438 SeattleSEA · 10:23 HoustonIAH · 16:54

AS438 by Alaska Airlines flies from Seattle (SEA) to Houston (IAH) for the Sun, Nov 1 departure.

Right nowOn time · gate N13
10:23

departs SEA · on schedule

The route today

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

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
26%Chance of 15+ min delay
1.1%Chance of cancellation
+2 minTypical airport delay in this weather

Driven mainly by IAH (Houston), currently flying MVFR (marginal visual). These figures come from both airports' records 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 at Houston

Forecast

Mon 2 Nov, local date

High29°Clikely 27°C to 29°C
Low20°Clikely 19°C to 21°C
  • 48% chance of fog
Outlook: about usual
Chance a departure is cancelled
0.5%usually 0.5%
Chance a departure leaves 60+ min late
5.7%usually 5.8%

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 600 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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
AS1573departs 17:33
AS240departs 17:35

If 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. 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: no clear pattern yet. Only 2 completed legs so far: landed +13 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.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-30SEA 10:47IAH 17:14 17:37 (+23)
10-29SEA IAH 17:14 17:17 (+3)

Board 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

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: AS438 Seattle to Houston on-time performance, measured from the SEA and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/AS438
How we measure this →