Flight profile · Delta Air Lines
DL1428
New York (JFK) to Miami (MIA) · scheduled 7:55 PM – 11:28 PM
How DL1428 performs
733 operations, 2024-03-10 to 2026-06-30.
DL1428 arrived on time 63.8% of the time, against 75.3% for all JFK → MIA flights — this specific departure is 11.5 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 11.3 points worse.
Source: US DOT Bureau of Transportation Statistics · 733 operations between 2024-03-10 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1428 | 63.8% | 2.86% | -2 min | 15.7% | 733 |
| Delta Air Lines on JFK → MIA | 75.0% | 1.77% | -8 min | 9.5% | 4,744 |
| All JFK → MIA flights | 75.3% | 1.98% | -7 min | 10.1% | 15,464 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-03-10 to 2026-06-30
Other routes DL1428 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 |
|---|---|---|---|
| DCA→DTW Washington to Detroit | 2024-05-07 – 2024-06-06 | 31 | — |
| DTW→DCA Detroit to Washington | 2024-05-07 – 2024-06-06 | 31 | — |
| MCO→MSP Orlando to Minneapolis | 2024-04-09 – 2024-05-06 | 28 | — |
| MSP→MCO Minneapolis to Orlando | 2024-04-09 – 2024-05-06 | 28 | — |
| LAX→DAL Los Angeles to Dallas | 2024-01-13 – 2024-03-09 | 43 | — |
| ATL→EWR Atlanta to Newark | 2024-01-01 – 2024-01-07 | 7 | — |
| EWR→ATL Newark to Atlanta | 2024-01-01 – 2024-01-07 | 7 | — |
| ATL→ECP Atlanta to Panama City Beach | 2023-12-17 – 2023-12-31 | 15 | — |
| LGA→BOS New York to Boston | 2023-09-05 – 2023-12-15 | 63 | — |
| SAN→MSP San Diego to Minneapolis | 2023-10-28 – 2023-11-04 | 8 | — |
| ATL→PVD Atlanta to Providence/Warwick | 2023-10-09 – 2023-10-27 | 17 | — |
| PVD→ATL Providence/Warwick to Atlanta | 2023-10-09 – 2023-10-27 | 17 | — |
| JFK→AUS New York to Austin | 2023-07-02 – 2023-09-04 | 64 | — |
| AUS→JFK Austin to New York | 2023-07-02 – 2023-07-07 | 5 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1428 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 733 records of DL1428 operating JFK → MIA, 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.