Flight OddsUA1279 DEN → IAD
United Airlines · Denver, CO to Washington, DC · 146 flights observed, 2025-12-18 to 2026-06-30 · 1,452 mi
UA1279 covers more than one route in the data window — the stats below are for DEN → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
95%
Median delay
-21 min
90th percentile
+2 min
Cancellation rate
0%
How often is UA1279 on time?
Across 146 flights on DEN → IAD from 2025-12-18 to 2026-06-30, UA1279 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -21 min, and the worst 10% of flights arrived +2 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 | 139 | 95% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 1% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 93% | -23 min |
| 2026-01 | 5 | 100% | -24 min |
| 2026-02 | 13 | 100% | -19 min |
| 2026-03 | 23 | 87% | -1 min |
| 2026-04 | 30 | 100% | -22 min |
| 2026-05 | 31 | 97% | -15 min |
| 2026-06 | 30 | 93% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 23 | 91% |
| Tue | 16 | 100% |
| Wed | 15 | 93% |
| Thu | 23 | 100% |
| Fri | 23 | 100% |
| Sat | 23 | 96% |
| Sun | 23 | 87% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…