Flight OddsUA1691 DEN → BOS
United Airlines · Denver, CO to Boston, MA · 37 flights observed, 2025-08-19 to 2025-09-24 · 1,754 mi
UA1691 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
59%
Median delay
+10 min
90th percentile
+93 min
Cancellation rate
0%
How often is UA1691 on time?
Across 37 flights on DEN → BOS from 2025-08-19 to 2025-09-24, UA1691 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +93 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 | 22 | 59% |
| 16-30 min | 5 | 14% |
| 31-60 min | 4 | 11% |
| 61-120 min | 5 | 14% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 69% | +15 min |
| 2025-09 | 24 | 54% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 40% |
| Tue | 6 | 50% |
| Wed | 6 | 33% |
| Thu | 5 | 80% |
| Fri | 5 | 80% |
| Sat | 5 | 80% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…