Flight profile · Delta Air Lines
DL1249
Miami (MIA) to Atlanta (ATL) · scheduled 6:00 AM – 8:06 AM
How DL1249 performs
662 operations, 2024-06-07 to 2026-06-30.
DL1249 arrived on time 92.3% of the time, against 72.2% for all MIA → ATL flights — this specific departure is 20.1 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 18.3 points better.
Source: US DOT Bureau of Transportation Statistics · 662 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1249 | 92.3% | 1.81% | -11 min | 3.8% | 662 |
| Delta Air Lines on MIA → ATL | 74.0% | 1.05% | -3 min | 9.9% | 9,696 |
| All MIA → ATL flights | 72.2% | 1.25% | -3 min | 10.8% | 19,564 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1249 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 |
|---|---|---|---|
| ATL→MIA Atlanta to Miami | 2025-11-09 – 2025-12-19 | 41 | — |
| MCI→MSP Kansas City to Minneapolis | 2025-09-26 – 2025-09-26 | 1 | — |
| MSP→MCI Minneapolis to Kansas City | 2025-09-26 – 2025-09-26 | 1 | — |
| GEG→SLC Spokane to Salt Lake City | 2025-08-16 – 2025-09-06 | 4 | — |
| ATL→LEX Atlanta to Lexington | 2024-05-07 – 2024-06-06 | 26 | — |
| LEX→ATL Lexington to Atlanta | 2024-05-07 – 2024-06-06 | 26 | — |
| LAS→SLC Las Vegas to Salt Lake City | 2024-05-11 – 2024-06-01 | 4 | — |
| MEM→SLC Memphis to Salt Lake City | 2024-04-09 – 2024-05-06 | 28 | — |
| SLC→ORD Salt Lake City to Chicago | 2024-03-10 – 2024-04-08 | 30 | — |
| MKE→ATL Milwaukee to Atlanta | 2024-01-08 – 2024-03-09 | 62 | — |
| DTW→FLL Detroit to Fort Lauderdale | 2023-07-01 – 2024-01-07 | 187 | 91.4% |
| FLL→DTW Fort Lauderdale to Detroit | 2023-12-07 – 2023-12-15 | 9 | — |
| ATL→PVD Atlanta to Providence/Warwick | 2023-09-05 – 2023-09-08 | 4 | — |
| PVD→ATL Providence/Warwick to Atlanta | 2023-09-05 – 2023-09-08 | 4 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1249 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 662 records of DL1249 operating MIA → ATL, 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.