Flight OddsUA478 BIL → DEN
United Airlines · Billings, MT to Denver, CO · 364 flights observed, 2025-07-01 to 2026-06-30 · 455 mi
UA478 covers more than one route in the data window — the stats below are for BIL → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-8 min
90th percentile
+48 min
Cancellation rate
0%
How often is UA478 on time?
Across 364 flights on BIL → DEN from 2025-07-01 to 2026-06-30, UA478 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +48 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 | 269 | 75% |
| 16-30 min | 28 | 8% |
| 31-60 min | 33 | 9% |
| 61-120 min | 16 | 4% |
| 2+ hrs | 12 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 56% | +45 min |
| 2025-08 | 31 | 39% | +30 min |
| 2025-09 | 30 | 60% | +18 min |
| 2025-10 | 31 | 74% | -1 min |
| 2025-11 | 29 | 90% | -8 min |
| 2025-12 | 31 | 87% | -4 min |
| 2026-01 | 30 | 90% | -9 min |
| 2026-02 | 28 | 82% | +10 min |
| 2026-03 | 31 | 77% | +20 min |
| 2026-04 | 30 | 97% | -20 min |
| 2026-05 | 31 | 84% | -6 min |
| 2026-06 | 29 | 66% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 70% |
| Tue | 52 | 75% |
| Wed | 52 | 75% |
| Thu | 50 | 74% |
| Fri | 52 | 73% |
| Sat | 51 | 71% |
| Sun | 51 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…