Flight profile · Delta Air Lines
DL1854
San Juan (SJU) to New York (JFK) · scheduled 7:00 AM – 10:11 AM
How DL1854 performs
1,096 operations, 2023-07-01 to 2026-06-30.
DL1854 arrived on time 94.4% of the time, against 79.6% for all SJU → JFK flights — this specific departure is 14.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.6 points better.
Source: US DOT Bureau of Transportation Statistics · 1,096 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1854 | 94.4% | 0.36% | -14 min | 2.2% | 1,096 |
| Delta Air Lines on SJU → JFK | 88.8% | 0.91% | -13 min | 3.9% | 3,309 |
| All SJU → JFK flights | 79.6% | 1.58% | -9 min | 8.5% | 11,035 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1854 run worse on particular days?
Friday is historically the most reliable day and Tuesday the least, a gap of 5.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,096 records of DL1854 operating SJU → JFK, 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.