WN1921 · SWA1921

SWA1921 over the last 30 days

As of 2026-10-27

SWA1921 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 04:04 UTC (22:04 local time, SLC). It usually lands around 05:18 UTC (22:18 local time, PHX). Most frequent aircraft type: BOEING 737 MAX 8 (B38M).

Days with an observed flight (last 30 days)

19/30

Days of the week with an observed flight

Mon, Thu, Fri, Sat

Typical take-off

04:04 UTC · 22:04 local time (SLC)

Typical landing

05:18 UTC · 22:18 local time (PHX)

Typical time airborne

72 min

Median departure deviation from the usual time on this route

+2 min

Departures within 15 minutes of the usual time

74 %

Departures measured

114

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: 17
• BOEING 737-700 (B737) — Number of flights: 11
• BOEING 737-800 (B738) — Number of flights: 3

Aircraft in the last 7 days

• N9031W · BOEING 737 MAX 8 2026-10-27
• N216WR · BOEING 737-700 2026-10-27
• N8325D · BOEING 737-800 2026-10-25
• N8942L · BOEING 737 MAX 8 2026-10-24
• N7821L · BOEING 737-700 2026-10-24
• N249WN · BOEING 737-700 2026-10-23

Related flights on this route

• All flights KSLC – KPHX