WN3939 · SWA3939

SWA3939 over the last 30 days

As of 2026-10-28

SWA3939 is operated by Southwest Airlines on the route Salt Lake City International Airport (SLC/KSLC) → Phoenix Sky Harbor International Airport (PHX/KPHX). It usually takes off around 21:50 UTC (15:50 local time, SLC). It usually lands around 23:12 UTC (16:12 local time, PHX). Most frequent aircraft type: BOEING 737-800 (B738).

Days with an observed flight (last 30 days)

29/30

Days of the week with an observed flight

Mon, Thu, Fri

Typical take-off

21:50 UTC · 15:50 local time (SLC)

Typical landing

23:12 UTC · 16:12 local time (PHX)

Typical time airborne

74 min

Median departure deviation from the usual time on this route

+2 min

Departures within 15 minutes of the usual time

74 %

Departures measured

112

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: 20
• BOEING 737 MAX 8 (B38M) — Number of flights: 15
• BOEING 737-700 (B737) — Number of flights: 1

Aircraft in the last 7 days

• N8977G · BOEING 737 MAX 8 2026-10-28
• N8952Q · BOEING 737 MAX 8 2026-10-27
• N8661A · BOEING 737-800 2026-10-26
• N8626B · BOEING 737-800 2026-10-25
• N8619F · BOEING 737-800 2026-10-24
• N8937Q · BOEING 737 MAX 8 2026-10-23

Related flights on this route

• All flights KSLC – KPHX