UA1596
United Airlines flight 1596 — Philadelphia (PHL) to San Francisco (SFO)
On time
79%
Avg delay
~66 min
Cancelled
0.8%
UA1596 is fairly reliable, though delays happen. About 79% 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 | 61% | 0.0% | 67 min |
| 2026-07 | 53% | 3.2% | 87 min |
| 2026-07 | 61% | 0.0% | 80 min |
| 2026-06 | 57% | 0.0% | 50 min |
| 2026-06 | 63% | 0.0% | 33 min |
| 2026-06 | 57% | 0.0% | 67 min |
| 2026-05 | 70% | 3.2% | 65 min |
| 2026-05 | 45% | 0.0% | 75 min |
| 2026-05 | 68% | 0.0% | 41 min |
| 2026-04 | 83% | 0.0% | 31 min |
| 2026-03 | 83% | 0.0% | 95 min |
| 2026-03 | 81% | 0.0% | 80 min |
Top delay cause
late-arriving aircraft
Based on 1,780 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.