Flight OddsUA5435 SFO → BOI
United Airlines · San Francisco, CA to Boise, ID · 245 flights observed, 2025-08-19 to 2026-05-20 · 522 mi
UA5435 covers more than one route in the data window — the stats below are for SFO → BOI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-8 min
90th percentile
+47 min
Cancellation rate
0%
How often is UA5435 on time?
Across 245 flights on SFO → BOI from 2025-08-19 to 2026-05-20, UA5435 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +47 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 | 191 | 78% |
| 16-30 min | 15 | 6% |
| 31-60 min | 19 | 8% |
| 61-120 min | 14 | 6% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 92% | -6 min |
| 2025-09 | 30 | 90% | +4 min |
| 2025-10 | 31 | 81% | +3 min |
| 2025-11 | 30 | 87% | -3 min |
| 2025-12 | 31 | 58% | +29 min |
| 2026-01 | 31 | 87% | -2 min |
| 2026-02 | 23 | 74% | +14 min |
| 2026-03 | 6 | 83% | -11 min |
| 2026-04 | 29 | 83% | -4 min |
| 2026-05 | 20 | 50% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 35 | 71% |
| Tue | 37 | 86% |
| Wed | 37 | 81% |
| Thu | 35 | 74% |
| Fri | 35 | 80% |
| Sat | 32 | 78% |
| Sun | 33 | 76% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…