Southwest Airlines
WN4039Philadelphia to St. Louis
Southwest Airlines flight WN4039 flies from Philadelphia (PHL) to St. Louis (STL), 1,306 km. Over August 2025 to July 2026 it usually arrives about 15 minutes late: 67% of 252 flights arrived within 15 minutes of schedule and 0% were cancelled (US Department of Transportation data).
On-time record, last 12 months
67%
on time (within 15 min)
20%
more than 30 min late
0%
cancelled
+15 min
average arrival vs schedule
Every operation of WN4039, August 2025 to July 2026: 252 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN4039
- Philadelphia (PHL) to St. Louis (STL)60 flights
- Fort Myers (RSW) to Indianapolis (IND)58 flights
- Long Beach (LGB) to Las Vegas (LAS)33 flights
- Denver (DEN) to Austin Bergstrom (AUS)32 flights
- San Jose (SJC) to San Diego (SAN)30 flights
- Oakland (OAK) to Santa Ana (SNA)17 flights
- Sarasota Bradenton (SRQ) to Kansas City (MCI)7 flights
- San Diego (SAN) to Orlando (MCO)5 flights
- Baltimore (BWI) to Las Vegas (LAS)4 flights
- San Diego (SAN) to New Orleans (MSY)2 flights
Other flights from Philadelphia to St. Louis
More about Philadelphia (PHL) and St. Louis (STL).
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