WN3395 MDW → STL

Southwest Airlines · Chicago, IL to St. Louis, MO · 50 flights observed, 2026-04-07 to 2026-06-03 · 251 mi

This flight's reliability varies a lot by day of week — 78% on-time on Tuesdays vs. 13% on Thursdays.

WN3395 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
60%
Median delay
+7 min
90th percentile
+69 min
Cancellation rate
0%

How often is WN3395 on time?

Across 50 flights on MDW → STL from 2026-04-07 to 2026-06-03, WN3395 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +69 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3060%
16-30 min816%
31-60 min510%
61-120 min510%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042171%+19 min
2026-052650%+21 min
2026-06367%+6 min

Performance by day of week

DayFlightsOn-time
Mon850%
Tue978%
Wed978%
Thu813%
Fri875%
Sat863%
SunNo data—

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