Southwest Airlines
WN668Philadelphia to St. Louis
Southwest Airlines flight WN668 flies from Philadelphia (PHL) to St. Louis (STL), 1,306 km. Over August 2025 to July 2026 it usually arrives about 6 minutes late: 79% of 386 flights arrived within 15 minutes of schedule and 0.5% were cancelled (US Department of Transportation data).
On-time record, last 12 months
79%
on time (within 15 min)
10%
more than 30 min late
0.5%
cancelled
+6 min
average arrival vs schedule
Every operation of WN668, August 2025 to July 2026: 386 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN668
- Philadelphia (PHL) to St. Louis (STL)49 flights
- Portland (PDX) to San Jose (SJC)42 flights
- San Jose (SJC) to Austin Bergstrom (AUS)42 flights
- Buffalo Niagara (BUF) to Nashville (BNA)34 flights
- Las Vegas (LAS) to Columbus (CMH)33 flights
- Atlanta (ATL) to Baltimore (BWI)28 flights
- Austin Bergstrom (AUS) to Kansas City (MCI)24 flights
- Nashville (BNA) to Austin Bergstrom (AUS)21 flights
- Tampa (TPA) to Las Vegas (LAS)19 flights
- Phoenix Sky Harbor (PHX) to Nashville (BNA)18 flights
Other flights from Philadelphia to St. Louis
More about Philadelphia (PHL) and St. Louis (STL).
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