Flight OddsUA1027 DEN → BOS
United Airlines · Denver, CO to Boston, MA · 34 flights observed, 2025-07-02 to 2025-08-18 · 1,754 mi
UA1027 covers more than one route in the data window — the stats below are for DEN → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
44%
Median delay
+25 min
90th percentile
+125 min
Cancellation rate
0%
How often is UA1027 on time?
Across 34 flights on DEN → BOS from 2025-07-02 to 2025-08-18, UA1027 arrived within 15 minutes of schedule 44% of the time. The median arrival delay was +25 min, and the worst 10% of flights arrived +125 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 | 15 | 44% |
| 16-30 min | 4 | 12% |
| 31-60 min | 6 | 18% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 6 | 18% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 43% | +51 min |
| 2025-08 | 13 | 46% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | No data | — |
| Wed | 7 | 29% |
| Thu | 7 | 57% |
| Fri | 7 | 29% |
| Sat | No data | — |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…