Flight OddsUA1074 BOS → SFO
United Airlines · Boston, MA to San Francisco, CA · 268 flights observed, 2025-07-01 to 2026-06-30 · 2,704 mi
UA1074 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
82%
Median delay
-9 min
90th percentile
+58 min
Cancellation rate
0%
How often is UA1074 on time?
Across 268 flights on BOS → SFO from 2025-07-01 to 2026-06-30, UA1074 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +58 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 | 217 | 82% |
| 16-30 min | 11 | 4% |
| 31-60 min | 11 | 4% |
| 61-120 min | 18 | 7% |
| 2+ hrs | 8 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 77% | +16 min |
| 2025-08 | 18 | 89% | -13 min |
| 2025-09 | 6 | 83% | -5 min |
| 2025-10 | 25 | 88% | +6 min |
| 2025-12 | 27 | 78% | +2 min |
| 2026-01 | 29 | 79% | -1 min |
| 2026-02 | 11 | 82% | -23 min |
| 2026-03 | 27 | 93% | -5 min |
| 2026-04 | 30 | 93% | -3 min |
| 2026-05 | 31 | 74% | +11 min |
| 2026-06 | 30 | 70% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 37 | 81% |
| Tue | 39 | 82% |
| Wed | 38 | 87% |
| Thu | 36 | 86% |
| Fri | 38 | 71% |
| Sat | 39 | 87% |
| Sun | 38 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…