WN1109 BWI → STL

Southwest Airlines · Baltimore, MD to St. Louis, MO · 27 flights observed, 2026-06-04 to 2026-06-30 · 738 mi

WN1109 covers more than one route in the data window — the stats below are for BWI → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
92%
Median delay
-10 min
90th percentile
+7 min
Cancellation rate
4%

How often is WN1109 on time?

Across 27 flights on BWI → STL from 2026-06-04 to 2026-06-30, WN1109 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +7 min or later. 4% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2492%
16-30 min28%
31-60 min00%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-062692%-9 min

Performance by day of week

DayFlightsOn-time
Mon475%
Tue4100%
Wed3100%
Thu4100%
Fri4100%
Sat4100%
Sun367%

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