Southwest Airlines
WN4312St. Louis to Denver
Southwest Airlines flight WN4312 flies from St. Louis (STL) to Denver (DEN), 1,236 km. Over August 2025 to July 2026 it usually arrives about 7 minutes late: 78% of 250 flights arrived within 15 minutes of schedule and 0.4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
78%
on time (within 15 min)
13%
more than 30 min late
0.4%
cancelled
+7 min
average arrival vs schedule
Every operation of WN4312, August 2025 to July 2026: 250 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN4312
- St. Louis (STL) to Denver (DEN)50 flights
- Salt Lake City (SLC) to Sacramento (SMF)49 flights
- Tampa (TPA) to Houston (HOU)40 flights
- Raleigh-durham (RDU) to St. Louis (STL)33 flights
- Pittsburgh (PIT) to St. Louis (STL)19 flights
- Washington (DCA) to Dallas Love Field (DAL)18 flights
- New York (LGA) to Chicago Midway (MDW)16 flights
- Omaha (OMA) to Las Vegas (LAS)11 flights
- Rochester (ROC) to Tampa (TPA)8 flights
- San Diego (SAN) to Denver (DEN)2 flights
Other flights from St. Louis to Denver
More about St. Louis (STL) and Denver (DEN).
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