Flight OddsUnited Airlines · Nashville, TN to San Francisco, CA · 140 flights observed, 2025-10-26 to 2026-05-19 · 1,969 mi
UA1578 covers more than one route in the data window — the stats below are for BNA → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1578 on time?
Across 140 flights on BNA → SFO from 2025-10-26 to 2026-05-19, UA1578 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +24 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 116 | 85% |
| 16-30 min | 10 | 7% |
| 31-60 min | 6 | 4% |
| 61-120 min | 5 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | -1 min |
| 2025-11 | 30 | 80% | +3 min |
| 2025-12 | 1 | 100% | +7 min |
| 2026-01 | 24 | 83% | +0 min |
| 2026-02 | 24 | 79% | -1 min |
| 2026-03 | 21 | 90% | -9 min |
| 2026-04 | 17 | 82% | +7 min |
| 2026-05 | 14 | 100% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 88% |
| Tue | 14 | 86% |
| Wed | 11 | 64% |
| Thu | 24 | 75% |
| Fri | 24 | 96% |
| Sat | 17 | 82% |
| Sun | 23 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…