Flight OddsSTL → DEN United Airlines
United Airlines · St. Louis, MO to Denver, CO · 1,213 flights, 2025-07-01 to 2026-06-30 · aggregated across 28 flight numbers
On-time arrival
79%
Median delay
-4 min
90th percentile
+53 min
Cancellation rate
1%
How on-time is United Airlines from STL to DEN?
Across every United Airlines flight number on STL → DEN (1,213 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +53 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 942 | 79% |
| 16-30 min | 83 | 7% |
| 31-60 min | 67 | 6% |
| 61-120 min | 48 | 4% |
| 2+ hrs | 59 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 121 | 64% | +45 min |
| 2025-08 | 121 | 73% | +22 min |
| 2025-09 | 119 | 79% | +1 min |
| 2025-10 | 118 | 82% | +1 min |
| 2025-11 | 90 | 81% | +7 min |
| 2025-12 | 79 | 72% | +21 min |
| 2026-01 | 76 | 83% | +2 min |
| 2026-02 | 73 | 90% | +12 min |
| 2026-03 | 106 | 77% | +9 min |
| 2026-04 | 81 | 86% | +0 min |
| 2026-05 | 97 | 81% | +11 min |
| 2026-06 | 118 | 81% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 170 | 75% |
| Tue | 162 | 78% |
| Wed | 178 | 78% |
| Thu | 172 | 78% |
| Fri | 179 | 82% |
| Sat | 160 | 77% |
| Sun | 178 | 82% |
UA flight numbers on STL → DEN
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…