Flight OddsUA1709 BOS → SFO
United Airlines · Boston, MA to San Francisco, CA · 19 flights observed, 2025-08-21 to 2025-09-22 · 2,704 mi
UA1709 covers more than one route in the data window — the stats below are for BOS → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
58%
Median delay
+1 min
90th percentile
+61 min
Cancellation rate
0%
How often is UA1709 on time?
Across 19 flights on BOS → SFO from 2025-08-21 to 2025-09-22, UA1709 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +61 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 | 11 | 58% |
| 16-30 min | 3 | 16% |
| 31-60 min | 3 | 16% |
| 61-120 min | 2 | 11% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 6 | 67% | +8 min |
| 2025-09 | 13 | 54% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 60% |
| Fri | 5 | 40% |
| Sat | No data | — |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…