WN2976 STL → DEN

Southwest Airlines · St. Louis, MO to Denver, CO · 33 flights observed, 2026-03-05 to 2026-04-06 · 770 mi

This flight runs much more reliably at some times of day than others — 89% on-time departing 6–9am vs. 53% departing 3–6pm.

WN2976 covers more than one route in the data window — the stats below are for STL → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
73%
Median delay
+1 min
90th percentile
+42 min
Cancellation rate
0%

How often is WN2976 on time?

Across 33 flights on STL → DEN from 2026-03-05 to 2026-04-06, WN2976 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +42 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2473%
16-30 min412%
31-60 min39%
61-120 min13%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032778%+12 min
2026-04650%+14 min

Performance by day of week

DayFlightsOn-time
Mon560%
Tue4100%
Wed450%
Thu540%
Fri560%
Sat5100%
Sun5100%

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