UA1220 DEN → DTW
United Airlines · Denver, CO to Detroit, MI · 328 flights observed, 2025-07-01 to 2026-06-30 · 1,123 mi
UA1220 covers more than one route in the data window — the stats below are for DEN → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-1 min
90th percentile
+73 min
Cancellation rate
0%
How often is UA1220 on time?
Across 328 flights on DEN → DTW from 2025-07-01 to 2026-06-30, UA1220 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +73 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 | 227 | 69% |
| 16-30 min | 29 | 9% |
| 31-60 min | 35 | 11% |
| 61-120 min | 22 | 7% |
| 2+ hrs | 15 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 48% | +37 min |
| 2025-08 | 31 | 58% | +29 min |
| 2025-09 | 30 | 90% | +1 min |
| 2025-10 | 25 | 84% | +2 min |
| 2025-12 | 30 | 67% | +20 min |
| 2026-01 | 31 | 81% | +1 min |
| 2026-02 | 28 | 64% | +17 min |
| 2026-03 | 31 | 74% | +14 min |
| 2026-04 | 30 | 80% | +2 min |
| 2026-05 | 31 | 68% | +17 min |
| 2026-06 | 30 | 50% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 67% |
| Tue | 48 | 73% |
| Wed | 47 | 72% |
| Thu | 47 | 64% |
| Fri | 47 | 62% |
| Sat | 47 | 74% |
| Sun | 46 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…