WN4256 · SWA4256

SWA4256 over the last 30 days

As of 2026-10-27

SWA4256 is operated by Southwest Airlines on the route Denver International Airport (DEN/KDEN) → Phoenix Sky Harbor International Airport (PHX/KPHX). It usually takes off around 12:10 UTC (06:10 local time, DEN). It usually lands around 13:43 UTC (06:43 local time, PHX). Most frequent aircraft type: BOEING 737-700 (B737).

Days with an observed flight (last 30 days)

28/30

Days of the week with an observed flight

Mon, Thu, Fri, Sat, Sun

Typical take-off

12:10 UTC · 06:10 local time (DEN)

Typical landing

13:43 UTC · 06:43 local time (PHX)

Typical time airborne

90 min

Median departure deviation from the usual time on this route

+5 min

Departures within 15 minutes of the usual time

63 %

Departures measured

225

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: 13
• BOEING 737 MAX 8 (B38M) — Number of flights: 8
• BOEING 737-800 (B738) — Number of flights: 7

Aircraft in the last 7 days

• N8528Q · BOEING 737-800 2026-10-27
• N448WN · BOEING 737-700 2026-10-26
• N498WN · BOEING 737-700 2026-10-25
• N8930S · BOEING 737 MAX 8 2026-10-24
• N206WN · BOEING 737-700 2026-10-23
• N7745A · BOEING 737-700 2026-10-22

Related flights on this route

• All flights KDEN – KPHX