UA2019
United Airlines flight 2019 — Los Angeles (LAX) to San Francisco (SFO)
On time
79%
Avg delay
~57 min
Cancelled
0.4%
UA2019 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 | 42% | 0.0% | 44 min |
| 2026-07 | 87% | 0.0% | 45 min |
| 2026-06 | 37% | 0.0% | 55 min |
| 2026-06 | 93% | 0.0% | 79 min |
| 2026-05 | 61% | 0.0% | 43 min |
| 2026-05 | 93% | 0.0% | 28 min |
| 2026-05 | 73% | 0.0% | 45 min |
| 2026-05 | 95% | 0.0% | 28 min |
| 2026-04 | 57% | 0.0% | 49 min |
| 2026-04 | 93% | 0.0% | 68 min |
| 2026-03 | 97% | 0.0% | 37 min |
| 2026-03 | 100% | 0.0% | 0 min |
Top delay cause
late-arriving aircraft
Based on 1,996 tracked departures
Flying UA2019? Get a free briefing.
Weather, delays, and what to expect — sent to your inbox before your flight.
Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.