WN3438 · SWA3438

SWA3438 over the last 30 days

As of 2026-10-26

SWA3438 is operated by Southwest Airlines on the route St. Louis Lambert International Airport (STL/KSTL) → Phoenix Sky Harbor International Airport (PHX/KPHX). It usually takes off around 00:48 UTC (19:48 local time, STL). It usually lands around 03:39 UTC (20:39 local time, PHX). Most frequent aircraft type: BOEING 737-800 (B738).

Days with an observed flight (last 30 days)

9/30

Days of the week with an observed flight

Sun

Typical take-off

00:48 UTC · 19:48 local time (STL)

Typical landing

03:39 UTC · 20:39 local time (PHX)

Typical time airborne

173 min

Median departure deviation from the usual time on this route

+2 min

Departures within 15 minutes of the usual time

77 %

Departures measured

90

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 737-800 (B738) — Number of flights: 6
• BOEING 737 MAX 8 (B38M) — Number of flights: 1
• BOEING 737-700 (B737) — Number of flights: 1

Aircraft in the last 7 days

• N8667D · BOEING 737-800 2026-10-26
• N8537Z · BOEING 737-800 2026-10-24

Related flights on this route

• All flights KSTL – KPHX