Flight OddsUA4631 CPR → DEN
United Airlines · Casper, WY to Denver, CO · 247 flights observed, 2025-10-26 to 2026-06-30 · 230 mi
UA4631 covers more than one route in the data window — the stats below are for CPR → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-2 min
90th percentile
+33 min
Cancellation rate
0%
How often is UA4631 on time?
Across 247 flights on CPR → DEN from 2025-10-26 to 2026-06-30, UA4631 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 201 | 82% |
| 16-30 min | 17 | 7% |
| 31-60 min | 13 | 5% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 9 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | +4 min |
| 2025-11 | 30 | 93% | 0 min |
| 2025-12 | 31 | 74% | +19 min |
| 2026-01 | 31 | 74% | +10 min |
| 2026-02 | 27 | 81% | +13 min |
| 2026-03 | 31 | 77% | +35 min |
| 2026-04 | 30 | 80% | +34 min |
| 2026-05 | 30 | 83% | -1 min |
| 2026-06 | 30 | 90% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 35 | 86% |
| Tue | 36 | 78% |
| Wed | 35 | 83% |
| Thu | 34 | 79% |
| Fri | 35 | 74% |
| Sat | 35 | 83% |
| Sun | 36 | 89% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…