UA617
United Airlines flight 617 — Denver (DEN) to Chicago (ORD)
On time
75%
Avg delay
~68 min
Cancelled
1.2%
UA617 is fairly reliable, though delays happen. About 75% of departures arrive on time. When delays happen, the most common cause is late-arriving aircraft.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 63% | 3.2% | 86 min |
| 2026-06 | 57% | 0.0% | 80 min |
| 2026-05 | 71% | 0.0% | 69 min |
| 2026-05 | 89% | 5.0% | 205 min |
| 2026-05 | 65% | 0.0% | 147 min |
| 2026-04 | 67% | 0.0% | 56 min |
| 2026-03 | 65% | 0.0% | 96 min |
| 2026-02 | 74% | 0.0% | 203 min |
| 2026-01 | 71% | 0.0% | 111 min |
| 2025-12 | 70% | 3.2% | 53 min |
| 2025-11 | 76% | 3.3% | 88 min |
| 2025-10 | 79% | 6.5% | 80 min |
Top delay cause
late-arriving aircraft
Based on 2,484 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.