Flight OddsUA1230 DEN → MIA
United Airlines · Denver, CO to Miami, FL · 33 flights observed, 2025-07-02 to 2025-08-17 · 1,709 mi
UA1230 covers more than one route in the data window — the stats below are for DEN → MIA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-11 min
90th percentile
+21 min
Cancellation rate
3%
How often is UA1230 on time?
Across 33 flights on DEN → MIA from 2025-07-02 to 2025-08-17, UA1230 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +21 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 84% |
| 16-30 min | 4 | 13% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 81% | +1 min |
| 2025-08 | 11 | 91% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 100% |
| Tue | No data | — |
| Wed | 6 | 100% |
| Thu | 7 | 71% |
| Fri | 6 | 83% |
| Sat | No data | — |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…