WN437 · SWA437

SWA437 over the last 30 days

As of 2026-10-26

SWA437 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 17:28 UTC (12:28 local time, STL). It usually lands around 20:21 UTC (13:21 local time, PHX). Most frequent aircraft type: BOEING 737 MAX 8 (B38M).

Days with an observed flight (last 30 days)

21/30

Days of the week with an observed flight

Tue, Wed

Typical take-off

17:28 UTC · 12:28 local time (STL)

Typical landing

20:21 UTC · 13:21 local time (PHX)

Typical time airborne

172 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 MAX 8 (B38M) — Number of flights: 19
• BOEING 737-800 (B738) — Number of flights: 9
• BOEING 737-700 (B737) — Number of flights: 2

Aircraft in the last 7 days

• N8963Q · BOEING 737 MAX 8 2026-10-26
• N8843S · BOEING 737 MAX 8 2026-10-24
• N8670A · BOEING 737-800 2026-10-21
• N8574Z · BOEING 737-800 2026-10-20

Related flights on this route

• All flights KSTL – KPHX