Flight OddsUA1701 BOS → SFO
United Airlines · Boston, MA to San Francisco, CA · 25 flights observed, 2025-10-26 to 2025-12-01 · 2,704 mi
UA1701 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
67%
Median delay
-11 min
90th percentile
+171 min
Cancellation rate
4%
How often is UA1701 on time?
Across 25 flights on BOS → SFO from 2025-10-26 to 2025-12-01, UA1701 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +171 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 67% |
| 16-30 min | 3 | 13% |
| 31-60 min | 1 | 4% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 4 | 17% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 4 | 50% | +35 min |
| 2025-11 | 19 | 68% | +18 min |
| 2025-12 | 1 | 100% | -29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 1 | 100% |
| Wed | 1 | 100% |
| Thu | 4 | 25% |
| Fri | 5 | 80% |
| Sat | 2 | 100% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…