WN4351 MDW → PHL

Southwest Airlines · Chicago, IL to Philadelphia, PA · 27 flights observed, 2026-06-04 to 2026-06-30 · 668 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -4 min, while the worst 10% run +119 min or later.

WN4351 covers more than one route in the data window — the stats below are for MDW → PHL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
-4 min
90th percentile
+119 min
Cancellation rate
0%

How often is WN4351 on time?

Across 27 flights on MDW → PHL from 2026-06-04 to 2026-06-30, WN4351 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +119 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1970%
16-30 min27%
31-60 min27%
61-120 min14%
2+ hrs311%

Performance by month

MonthFlightsOn-timeAvg delay
2026-062770%+29 min

Performance by day of week

DayFlightsOn-time
Mon475%
Tue4100%
Wed333%
Thu450%
Fri475%
Sat475%
Sun475%

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