WN2591 STL → MDW

Southwest Airlines · St. Louis, MO to Chicago, IL · 23 flights observed, 2025-11-03 to 2026-01-01 · 251 mi

WN2591 covers more than one route in the data window — the stats below are for STL → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
91%
Median delay
-9 min
90th percentile
+9 min
Cancellation rate
0%

How often is WN2591 on time?

Across 23 flights on STL → MDW from 2025-11-03 to 2026-01-01, WN2591 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +9 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2191%
16-30 min00%
31-60 min00%
61-120 min14%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2025-111090%+1 min
2025-121292%+7 min
2026-011100%-10 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue5100%
Wed786%
Thu5100%
Fri1100%
SatNo data—
Sun10%

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