Flight OddsUA1232 DEN → BOS
United Airlines · Denver, CO to Boston, MA · 174 flights observed, 2025-12-18 to 2026-06-30 · 1,754 mi
UA1232 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
88%
Median delay
-13 min
90th percentile
+28 min
Cancellation rate
1%
How often is UA1232 on time?
Across 174 flights on DEN → BOS from 2025-12-18 to 2026-06-30, UA1232 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +28 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 151 | 88% |
| 16-30 min | 5 | 3% |
| 31-60 min | 7 | 4% |
| 61-120 min | 7 | 4% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 93% | +2 min |
| 2026-01 | 29 | 90% | -12 min |
| 2026-02 | 11 | 82% | -5 min |
| 2026-03 | 27 | 93% | -1 min |
| 2026-04 | 30 | 83% | -11 min |
| 2026-05 | 31 | 87% | +1 min |
| 2026-06 | 30 | 87% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 88% |
| Tue | 25 | 92% |
| Wed | 24 | 83% |
| Thu | 25 | 80% |
| Fri | 25 | 84% |
| Sat | 25 | 96% |
| Sun | 24 | 92% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…