WN3521 · SWA3521

SWA3521 over the last 30 days

As of 2026-10-27

SWA3521 is operated by Southwest Airlines on the route Pittsburgh International Airport (PIT/KPIT) → Chicago Midway International Airport (MDW/KMDW). It usually takes off around 00:32 UTC (20:32 local time, PIT). It usually lands around 01:41 UTC (20:41 local time, MDW). Most frequent aircraft type: BOEING 737 MAX 8 (B38M).

Days with an observed flight (last 30 days)

22/30

Days of the week with an observed flight

Mon, Thu, Fri, Sun

Typical take-off

00:32 UTC · 20:32 local time (PIT)

Typical landing

01:41 UTC · 20:41 local time (MDW)

Typical time airborne

64 min

Median departure deviation from the usual time on this route

+2 min

Departures within 15 minutes of the usual time

74 %

Departures measured

68

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: 8
• BOEING 737-800 (B738) — Number of flights: 1

Aircraft in the last 7 days

• N290WN · BOEING 737-700 2026-10-27
• N8714Q · BOEING 737 MAX 8 2026-10-26
• N8915Q · BOEING 737 MAX 8 2026-10-26
• N8725L · BOEING 737 MAX 8 2026-10-24
• N8507C · BOEING 737-800 2026-10-23
• N443WN · BOEING 737-700 2026-10-21

Related flights on this route

• All flights KPIT – KMDW