Flight profile · Delta Air Lines
DL1035
New York (JFK) to Jacksonville (JAX) · scheduled 12:59 PM – 4:07 PM
How DL1035 performs
449 operations, 2024-06-07 to 2026-06-30.
DL1035 arrived on time 80.5% of the time, against 76.7% for all JFK → JAX flights — this specific departure is 3.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 1.0 points better.
Source: US DOT Bureau of Transportation Statistics · 449 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1035 | 80.5% | 0.89% | -11 min | 10.5% | 449 |
| Delta Air Lines on JFK → JAX | 79.5% | 1.52% | -11 min | 10.1% | 984 |
| All JFK → JAX flights | 76.7% | 3.12% | -8 min | 10.0% | 4,653 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1035 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 |
|---|---|---|---|
| JAX→JFK Jacksonville to New York | 2024-06-07 – 2026-06-30 | 396 | 66.8% |
| FLL→ATL Fort Lauderdale to Atlanta | 2026-04-13 – 2026-05-06 | 24 | — |
| IAH→LAX Houston to Los Angeles | 2026-03-08 – 2026-04-12 | 31 | — |
| MSY→BOS New Orleans to Boston | 2026-01-05 – 2026-03-07 | 62 | — |
| DEN→ATL Denver to Atlanta | 2025-08-11 – 2025-12-19 | 131 | 86.3% |
| LGA→FLL New York to Fort Lauderdale | 2025-02-22 – 2025-02-22 | 1 | — |
| FLL→LGA Fort Lauderdale to New York | 2025-02-06 – 2025-02-06 | 1 | — |
| ATL→ORD Atlanta to Chicago | 2023-07-09 – 2024-06-06 | 140 | 60.6% |
| ATL→EYW Atlanta to Key West | 2024-01-08 – 2024-05-06 | 120 | 84.0% |
| EYW→ATL Key West to Atlanta | 2024-01-08 – 2024-05-06 | 120 | 88.1% |
| XNA→ATL Fayetteville/Springdale/Rogers to Atlanta | 2023-10-30 – 2023-11-03 | 5 | — |
| MSY→ATL New Orleans to Atlanta | 2023-10-10 – 2023-10-25 | 8 | — |
| CMH→MSP Columbus to Minneapolis | 2023-07-02 – 2023-07-07 | 5 | — |
| MSP→CMH Minneapolis to Columbus | 2023-07-02 – 2023-07-07 | 5 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1035 currently operates. Blending them would produce an average of two different flights.
Why DL1035 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL1035 on JFK → JAX. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on JFK → JAX
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B6677 | JetBlue | 79.7% | 6 min early | 944 |
| B61677 | JetBlue | 59.4% | 5 min late | 854 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 449 records of DL1035 operating JFK → JAX, 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.