WN3531 MDW → LAX

Southwest Airlines · Chicago, IL to Los Angeles, CA · 30 flights observed, 2025-07-01 to 2025-08-04 · 1,751 mi

This flight runs much more reliably at some times of day than others — 90% on-time departing 6–9am vs. 45% departing 3–6pm.

WN3531 covers more than one route in the data window — the stats below are for MDW → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
60%
Median delay
+7 min
90th percentile
+78 min
Cancellation rate
0%

How often is WN3531 on time?

Across 30 flights on MDW → LAX from 2025-07-01 to 2025-08-04, WN3531 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +78 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1860%
16-30 min517%
31-60 min13%
61-120 min413%
2+ hrs27%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072763%+23 min
2025-08333%+31 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue580%
Wed5100%
Thu540%
Fri520%
Sat540%
SunNo data—

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…