Flight profile · JetBlue
B61734
San Francisco (SFO) to Boston (BOS) · scheduled 12:20 PM – 5:14 PM
How B61734 performs
1,024 operations, 2023-07-02 to 2026-06-30.
B61734 arrived on time 75.2% of the time, against 78.2% for all SFO → BOS flights — this specific departure is 3.0 percentage points worse than the route as a whole. Against JetBlue’s own flights on this route it is 1.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,024 operations between 2023-07-02 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B61734 | 75.2% | 1.07% | -7 min | 9.8% | 1,024 |
| JetBlue on SFO → BOS | 77.0% | 0.85% | -7 min | 9.2% | 4,841 |
| All SFO → BOS flights | 78.2% | 0.95% | -7 min | 8.3% | 13,718 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-02 to 2026-06-30
By day of week
Does B61734 run worse on particular days?
Tuesday is historically the most reliable day and Monday the least, a gap of 17.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-02 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,024 records of B61734 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.