AS478 · ASA478

ASA478 over the last 30 days

As of 2026-10-27

ASA478 is operated by Alaska Airlines on the route Seattle–Tacoma International Airport (SEA/KSEA) → Phoenix Sky Harbor International Airport (PHX/KPHX). It usually takes off around 22:22 UTC (15:22 local time, SEA). It usually lands around 00:52 UTC (17:52 local time, PHX). Most frequent aircraft type: BOEING 737-900 (B739).

Days with an observed flight (last 30 days)

28/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sat, Sun

Typical take-off

22:22 UTC · 15:22 local time (SEA)

Typical landing

00:52 UTC · 17:52 local time (PHX)

Typical time airborne

142 min

Median departure deviation from the usual time on this route

+2 min

Departures within 15 minutes of the usual time

78 %

Departures measured

141

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737-900 (B739) — Number of flights: 29
• BOEING 737 MAX 9 (B39M) — Number of flights: 15
• BOEING 737-800 (B738) — Number of flights: 12

Aircraft in the last 7 days

• N947AK · BOEING 737 MAX 9 2026-10-27
• N297AK · BOEING 737-900 2026-10-26
• N247AK · BOEING 737-900 2026-10-26
• N703AL · BOEING 737 MAX 9 2026-10-25
• N214AK · BOEING 737-900 2026-10-23
• N719AL · BOEING 737 MAX 9 2026-10-23

Related flights on this route

• All flights KSEA – KPHX