WN1539 BWI → MDW

Southwest Airlines · Baltimore, MD to Chicago, IL · 40 flights observed, 2025-11-02 to 2026-01-05 · 611 mi

This flight's reliability varies a lot by day of week — 88% on-time on Wednesdays vs. 40% on Sundays.

WN1539 covers more than one route in the data window — the stats below are for BWI → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
69%
Median delay
+2 min
90th percentile
+52 min
Cancellation rate
3%

How often is WN1539 on time?

Across 40 flights on BWI → MDW from 2025-11-02 to 2026-01-05, WN1539 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +52 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2769%
16-30 min410%
31-60 min513%
61-120 min38%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112075%+8 min
2025-121765%+15 min
2026-01250%+22 min

Performance by day of week

DayFlightsOn-time
Mon757%
Tue683%
Wed888%
Thu757%
Fri683%
SatNo data—
Sun540%

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