United Airlines · Atlanta, GA to San Francisco, CA · 214 flights observed, 2025-09-25 to 2026-05-19 · 2,139 mi
UA1259 covers more than one route in the data window — the stats below are for ATL → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1259 on time?
Across 214 flights on ATL → SFO from 2025-09-25 to 2026-05-19, UA1259 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +21 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 183 | 86% |
| 16-30 min | 17 | 8% |
| 31-60 min | 3 | 1% |
| 61-120 min | 8 | 4% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 100% | -20 min |
| 2025-10 | 31 | 84% | +3 min |
| 2025-11 | 30 | 80% | +1 min |
| 2025-12 | 30 | 70% | +15 min |
| 2026-01 | 31 | 84% | -6 min |
| 2026-02 | 11 | 91% | -14 min |
| 2026-03 | 27 | 96% | -31 min |
| 2026-04 | 30 | 93% | -5 min |
| 2026-05 | 17 | 94% | -16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 84% |
| Tue | 31 | 84% |
| Wed | 28 | 89% |
| Thu | 31 | 97% |
| Fri | 31 | 81% |
| Sat | 30 | 87% |
| Sun | 31 | 81% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…