Flight OddsUnited Airlines · San Francisco, CA to Boston, MA · 341 flights observed, 2025-07-01 to 2026-06-30 · 2,704 mi
UA2647 covers more than one route in the data window — the stats below are for SFO → BOS, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA2647 on time?
Across 341 flights on SFO → BOS from 2025-07-01 to 2026-06-30, UA2647 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +62 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 | 278 | 82% |
| 16-30 min | 14 | 4% |
| 31-60 min | 11 | 3% |
| 61-120 min | 22 | 6% |
| 2+ hrs | 14 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | +8 min |
| 2025-08 | 31 | 87% | -2 min |
| 2025-09 | 7 | 71% | +50 min |
| 2025-10 | 31 | 58% | +43 min |
| 2025-11 | 30 | 90% | -1 min |
| 2025-12 | 31 | 84% | +11 min |
| 2026-01 | 30 | 93% | -12 min |
| 2026-02 | 27 | 74% | +5 min |
| 2026-03 | 31 | 77% | +1 min |
| 2026-04 | 30 | 83% | -2 min |
| 2026-05 | 31 | 84% | +0 min |
| 2026-06 | 29 | 90% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 81% |
| Tue | 49 | 84% |
| Wed | 48 | 88% |
| Thu | 49 | 78% |
| Fri | 49 | 76% |
| Sat | 48 | 83% |
| Sun | 48 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…