AS603Alaska Airlines · PHX → SEA
live · 3m ago
Route confirmed Alaska Airlines

AS603 PhoenixPHX · 09:03 SeattleSEA · 11:19

AS603 by Alaska Airlines flies from Phoenix (PHX) to Seattle (SEA) for the Sun, Nov 1 departure.

Right nowIn the air to Seattle · off blocks 09:11 · 8 min late
10:31

estimated arrival at SEA · local time · ~50 min from now

LivePosition · updated 4m ago
SEA381 mi · ~50 min leftPHX
34,000 ftAltitudecruising
520 mphSpeed452 kt
327°Direction

Live position · flown path, last 1h 28m

Wins back in air~51 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
PHXPhoenixModerate riskPHX delay board →
SEASeattleHigh riskSEA delay board →
PHX→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
39%Chance of 15+ min delay
2.1%Chance of cancellation
+18 minTypical airport delay in this weather

Driven mainly by PHX (Phoenix), 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 on this route

Forecast

Phoenix to Seattle with Alaska Airlines · Mon 2 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.4%0.8× usual
Chance a departure leaves 60+ min late
5.9%0.9× usual

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 8 departures a day on this route with this airline. · 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 Phoenix to Seattle flights today

same route · Alaska Airlines
AS605departs 06:02
AS799departs 06:02
AS645departs 08:02
AS9579departs 09:45
AS637departs 11:35
AS606departs 12:43

If AS603 is cancelled, these are the other Alaska Airlines nonstop flights from Phoenix to Seattle on the same day, with scheduled departure times in PHX 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 AS603 actually runs

Pro Flight Search has tracked every published board update for AS603 across the PHX 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 AS603 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
11-01PHX 09:03 09:11 (+8)SEA 11:19 10:31 (−48)
10-31PHX 09:02 09:00 (−2)SEA 12:14

Board clocks recorded as PHX and SEA published them.

Planning around AS603? 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: AS603 Phoenix to Seattle on-time performance, measured from the PHX and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS603
How we measure this →