AS439Alaska Airlines · IAH → SEA
live · 7m ago
Route confirmed Alaska Airlines

AS439 HoustonIAH · 14:27 SeattleSEA · 17:18

AS439 by Alaska Airlines flies from Houston (IAH) to Seattle (SEA) for the Mon, Nov 2 departure.

Right nowIn the air to Seattle · off blocks 14:30 · 3 min late
16:59

estimated arrival at SEA · local time · ~1h 59m from now

LivePosition · updated 7m ago
SEA847 mi · ~1h 59m leftIAH
32,000 ftAltitudecruising
480 mphSpeed417 kt
309°Direction

Live position · flown path, last 2h 7m

Wins back in air~22 minmedian gate push vs arrival · how planes make up time →

The route today

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

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
29%Chance of 15+ min delay
1.5%Chance of cancellation
+0 minTypical airport delay in this weather

Conditions at IAH and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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

Tue 3 Nov, local date

High27°Clikely 24°C to 28°C
Low19°Clikely 15°C to 22°C
  • 41% chance of thunder
  • 84% chance of rain

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

Tomorrow at Seattle

Forecast

Tue 3 Nov, local date

High14°Clikely 12°C to 16°C
Low7°Clikely 5°C to 9°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · 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 Houston to Seattle flights today

same route · Alaska Airlines
AS241departs 06:02
AS280departs 07:02

If AS439 is cancelled, these are the other Alaska Airlines nonstop flights from Houston to Seattle on the same day, with scheduled departure times in IAH 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 AS439 actually runs

Pro Flight Search has tracked every published board update for AS439 across the IAH and SEA boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: departed +3 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how AS439 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
11-02IAH 14:27 14:30 (+3)SEA 17:18 16:59 (−19)
11-01IAH 14:27 14:29 (+2)SEA 17:18

Board clocks recorded as IAH and SEA published them.

Planning around AS439? 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: AS439 Houston to Seattle on-time performance, measured from the IAH and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS439
How we measure this →