UA489
United Airlines flight 489 — Denver (DEN) to Houston (IAH)
On time
76%
Avg delay
~59 min
Cancelled
0.9%
UA489 is fairly reliable, though delays happen. About 76% of departures arrive on time. When delays happen, the most common cause is air traffic / NAS.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 68% | 0.0% | 55 min |
| 2026-07 | 90% | 0.0% | 27 min |
| 2026-06 | 63% | 0.0% | 82 min |
| 2026-06 | 97% | 0.0% | 132 min |
| 2026-05 | 84% | 0.0% | 60 min |
| 2026-05 | 100% | 0.0% | 0 min |
| 2026-04 | 87% | 0.0% | 101 min |
| 2026-04 | 93% | 3.3% | 28 min |
| 2026-03 | 77% | 0.0% | 110 min |
| 2026-03 | 67% | 14.3% | 61 min |
| 2026-03 | 100% | 0.0% | 0 min |
| 2026-03 | 81% | 0.0% | 68 min |
Top delay cause
air traffic / NAS
Based on 2,138 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.