UA1823
United Airlines flight 1823 — San Francisco (SFO) to Denver (DEN)
On time
80%
Avg delay
~63 min
Cancelled
1.2%
UA1823 is a reliable flight. About 80% 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 | 70% | 0.0% | 54 min |
| 2026-07 | 87% | 0.0% | 126 min |
| 2026-06 | 77% | 0.0% | 45 min |
| 2026-06 | 97% | 0.0% | 114 min |
| 2026-05 | 86% | 0.0% | 35 min |
| 2026-05 | 90% | 0.0% | 97 min |
| 2026-04 | 88% | 0.0% | 46 min |
| 2026-04 | 97% | 0.0% | 50 min |
| 2026-03 | 67% | 0.0% | 63 min |
| 2026-03 | 63% | 0.0% | 51 min |
| 2026-03 | 100% | 0.0% | 0 min |
| 2026-03 | 100% | 0.0% | 0 min |
Top delay cause
air traffic / NAS
Based on 1,799 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.