Flight OddsUA5312 BOI → SFO
United Airlines · Boise, ID to San Francisco, CA · 121 flights observed, 2025-07-01 to 2026-03-04 · 522 mi
UA5312 covers more than one route in the data window — the stats below are for BOI → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-9 min
90th percentile
+49 min
Cancellation rate
1%
How often is UA5312 on time?
Across 121 flights on BOI → SFO from 2025-07-01 to 2026-03-04, UA5312 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +49 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 | 96 | 80% |
| 16-30 min | 6 | 5% |
| 31-60 min | 7 | 6% |
| 61-120 min | 5 | 4% |
| 2+ hrs | 6 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 77% | +6 min |
| 2025-08 | 12 | 92% | +10 min |
| 2025-12 | 30 | 73% | +45 min |
| 2026-01 | 30 | 87% | -5 min |
| 2026-02 | 23 | 74% | -8 min |
| 2026-03 | 3 | 100% | -26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 80% |
| Tue | 21 | 71% |
| Wed | 21 | 90% |
| Thu | 20 | 80% |
| Fri | 19 | 74% |
| Sat | 9 | 100% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…