Flight OddsUA5851 DEN → MSO
United Airlines · Denver, CO to Missoula, MT · 52 flights observed, 2025-10-26 to 2025-12-17 · 679 mi
UA5851 covers more than one route in the data window — the stats below are for DEN → MSO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-9 min
90th percentile
+55 min
Cancellation rate
6%
How often is UA5851 on time?
Across 52 flights on DEN → MSO from 2025-10-26 to 2025-12-17, UA5851 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +55 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 39 | 80% |
| 16-30 min | 2 | 4% |
| 31-60 min | 3 | 6% |
| 61-120 min | 4 | 8% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | -11 min |
| 2025-11 | 27 | 81% | -1 min |
| 2025-12 | 16 | 69% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 7 | 86% |
| Wed | 6 | 67% |
| Thu | 6 | 83% |
| Fri | 7 | 57% |
| Sat | 7 | 100% |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…