Flight OddsUA454 IAD → DEN
United Airlines · Washington, DC to Denver, CO · 48 flights observed, 2025-07-01 to 2025-08-18 · 1,452 mi
UA454 covers more than one route in the data window — the stats below are for IAD → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
47%
Median delay
+16 min
90th percentile
+104 min
Cancellation rate
4%
How often is UA454 on time?
Across 48 flights on IAD → DEN from 2025-07-01 to 2025-08-18, UA454 arrived within 15 minutes of schedule 47% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +104 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 21 | 47% |
| 16-30 min | 7 | 16% |
| 31-60 min | 6 | 13% |
| 61-120 min | 7 | 16% |
| 2+ hrs | 4 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 37% | +51 min |
| 2025-08 | 18 | 61% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 7 | 43% |
| Wed | 6 | 50% |
| Thu | 6 | 50% |
| Fri | 6 | 50% |
| Sat | 7 | 43% |
| Sun | 6 | 17% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…