Flight OddsUA1023 DEN → ORD
United Airlines · Denver, CO to Chicago, IL · 364 flights observed, 2025-07-01 to 2026-06-30 · 888 mi
UA1023 covers more than one route in the data window — the stats below are for DEN → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
61%
Median delay
+7 min
90th percentile
+66 min
Cancellation rate
0%
How often is UA1023 on time?
Across 364 flights on DEN → ORD from 2025-07-01 to 2026-06-30, UA1023 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +66 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 | 219 | 61% |
| 16-30 min | 60 | 17% |
| 31-60 min | 41 | 11% |
| 61-120 min | 16 | 4% |
| 2+ hrs | 25 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 48% | +46 min |
| 2025-08 | 31 | 65% | +52 min |
| 2025-09 | 30 | 70% | +12 min |
| 2025-10 | 31 | 58% | +15 min |
| 2025-11 | 29 | 38% | +36 min |
| 2025-12 | 31 | 58% | +18 min |
| 2026-01 | 31 | 42% | +32 min |
| 2026-02 | 28 | 57% | +24 min |
| 2026-03 | 30 | 70% | +33 min |
| 2026-04 | 29 | 62% | +24 min |
| 2026-05 | 30 | 97% | -8 min |
| 2026-06 | 30 | 63% | +41 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 67% |
| Tue | 53 | 68% |
| Wed | 52 | 50% |
| Thu | 50 | 44% |
| Fri | 51 | 61% |
| Sat | 52 | 67% |
| Sun | 52 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…