Flight profile · United Airlines
UA2647
San Francisco (SFO) to Boston (BOS) · scheduled 8:25 AM – 5:05 PM
How UA2647 performs
808 operations, 2024-02-15 to 2026-06-30.
UA2647 arrived on time 82.9% of the time, against 78.2% for all SFO → BOS flights — this specific departure is 4.6 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 3.5 points better.
Source: US DOT Bureau of Transportation Statistics · 808 operations between 2024-02-15 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2647 | 82.9% | 0.87% | -8 min | 9.1% | 808 |
| United Airlines on SFO → BOS | 79.3% | 0.99% | -8 min | 8.3% | 5,334 |
| All SFO → BOS flights | 78.2% | 0.95% | -7 min | 8.3% | 13,718 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-02-15 to 2026-06-30
Other routes UA2647 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| LAX→SFO Los Angeles to San Francisco | 2025-12-18 – 2026-06-30 | 75 | — |
| ONT→SFO Ontario to San Francisco | 2025-08-19 – 2025-09-24 | 37 | — |
| BOS→EWR Boston to Newark | 2024-06-27 – 2025-09-01 | 66 | — |
| ORD→DCA Chicago to Washington | 2023-09-05 – 2025-04-30 | 52 | — |
| RNO→SFO Reno to San Francisco | 2024-02-15 – 2024-03-06 | 21 | — |
| PIT→IAH Pittsburgh to Houston | 2024-01-09 – 2024-02-14 | 37 | — |
| SFO→LAS San Francisco to Las Vegas | 2023-11-28 – 2024-01-08 | 40 | — |
| LAS→EWR Las Vegas to Newark | 2023-10-29 – 2023-12-20 | 49 | — |
| SAN→SFO San Diego to San Francisco | 2023-11-28 – 2023-12-20 | 20 | — |
| LGA→IAH New York to Houston | 2023-10-01 – 2023-10-28 | 28 | — |
| DCA→IAH Washington to Houston | 2023-07-02 – 2023-09-30 | 82 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2647 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 808 records of UA2647 operating SFO → BOS, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.