Southwest Airlines
WN4503St. Louis to Las Vegas
Southwest Airlines flight WN4503 flies from St. Louis (STL) to Las Vegas (LAS), 2,202 km. Over August 2025 to July 2026 it usually arrives about 11 minutes late: 68% of 242 flights arrived within 15 minutes of schedule and 2.1% were cancelled (US Department of Transportation data).
On-time record, last 12 months
68%
on time (within 15 min)
18%
more than 30 min late
2.1%
cancelled
+11 min
average arrival vs schedule
Every operation of WN4503, August 2025 to July 2026: 242 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN4503
- St. Louis (STL) to Las Vegas (LAS)58 flights
- Oakland (OAK) to Las Vegas (LAS)57 flights
- Las Vegas (LAS) to Salt Lake City (SLC)28 flights
- Dallas Love Field (DAL) to Kansas City (MCI)25 flights
- Santa Ana (SNA) to Denver (DEN)20 flights
- Chicago Midway (MDW) to St. Louis (STL)18 flights
- Salt Lake City (SLC) to Las Vegas (LAS)17 flights
- Pittsburgh (PIT) to Orlando (MCO)6 flights
- Savannah Hilton Head (SAV) to Chicago Midway (MDW)5 flights
- Denver (DEN) to Colorado Springs (COS)4 flights
Other flights from St. Louis to Las Vegas
More about St. Louis (STL) and Las Vegas (LAS).
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