UA1434
United Airlines flight 1434 — San Francisco (SFO) to San Diego (SAN)
On time
79%
Avg delay
~76 min
Cancelled
1.3%
UA1434 is fairly reliable, though delays happen. About 79% 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 | 74% | 0.0% | 86 min |
| 2026-07 | 80% | 3.2% | 56 min |
| 2026-06 | 67% | 0.0% | 40 min |
| 2026-06 | 93% | 3.3% | 114 min |
| 2026-06 | 50% | 0.0% | 87 min |
| 2026-05 | 87% | 0.0% | 70 min |
| 2026-05 | 92% | 0.0% | 42 min |
| 2026-05 | 73% | 0.0% | 88 min |
| 2026-04 | 73% | 0.0% | 63 min |
| 2026-04 | 97% | 0.0% | 34 min |
| 2026-04 | 66% | 0.0% | 61 min |
| 2026-03 | 81% | 0.0% | 36 min |
Top delay cause
air traffic / NAS
Based on 1,804 tracked departures
Flying UA1434? 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.