WN668 PHL → STL

Southwest Airlines · Philadelphia, PA to St. Louis, MO · 49 flights observed, 2026-04-07 to 2026-06-03 · 814 mi

This flight's reliability varies a lot by day of week — 100% on-time on Fridays vs. 56% on Tuesdays.

WN668 covers more than one route in the data window — the stats below are for PHL → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
69%
Median delay
-1 min
90th percentile
+56 min
Cancellation rate
0%

How often is WN668 on time?

Across 49 flights on PHL → STL from 2026-04-07 to 2026-06-03, WN668 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +56 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3469%
16-30 min714%
31-60 min36%
61-120 min36%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042181%+3 min
2026-052556%+28 min
2026-063100%-11 min

Performance by day of week

DayFlightsOn-time
Mon863%
Tue956%
Wed956%
Thu863%
Fri8100%
SatNo data—
Sun786%

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