WN1637 · SWA1637

SWA1637 over the last 30 days

As of 2026-10-26

SWA1637 is operated by Southwest Airlines on the route Denver International Airport (DEN/KDEN) → Phoenix Sky Harbor International Airport (PHX/KPHX). It usually lands around 05:45 UTC (22:45 local time, PHX). Most frequent aircraft type: BOEING 737-700 (B737).

Days with an observed flight (last 30 days)

25/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sun

Typical landing

05:45 UTC · 22:45 local time (PHX)

Typical time airborne

95 min

Median departure deviation from the usual time on this route

+6 min

Departures within 15 minutes of the usual time

62 %

Departures measured

224

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 737-700 (B737) — Number of flights: 15
• BOEING 737-800 (B738) — Number of flights: 15
• BOEING 737 MAX 8 (B38M) — Number of flights: 10

Aircraft in the last 7 days

• N8518R · BOEING 737-800 2026-10-26
• N8668A · BOEING 737-800 2026-10-25
• N8584Z · BOEING 737-800 2026-10-23
• N8906K · BOEING 737 MAX 8 2026-10-22
• N7879A · BOEING 737-700 2026-10-21
• N913WN · BOEING 737-700 2026-10-20

Related flights on this route

• All flights KDEN – KPHX