WN2012 MDW → STL

Southwest Airlines · Chicago, IL to St. Louis, MO · 50 flights observed, 2025-08-05 to 2025-10-01 · 251 mi

This flight has a strong track record — on time 94% of the time, with a low cancellation rate.

WN2012 covers more than one route in the data window — the stats below are for MDW → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
94%
Median delay
-12 min
90th percentile
+5 min
Cancellation rate
0%

How often is WN2012 on time?

Across 50 flights on MDW → STL from 2025-08-05 to 2025-10-01, WN2012 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +5 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4794%
16-30 min12%
31-60 min24%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-082387%-4 min
2025-0926100%-11 min
2025-101100%-4 min

Performance by day of week

DayFlightsOn-time
Mon888%
Tue9100%
Wed9100%
Thu8100%
Fri888%
SatNo data—
Sun888%

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