Flight profile · Delta Air Lines
DL1229
Atlanta (ATL) to Fort Lauderdale (FLL) · scheduled 10:35 PM – 12:30 AM
How DL1229 performs
865 operations, 2023-07-01 to 2026-06-30.
DL1229 arrived on time 70.6% of the time, against 72.2% for all ATL → FLL flights — this specific departure is 1.6 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 4.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 865 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1229 | 70.6% | 1.62% | -2 min | 10.8% | 865 |
| Delta Air Lines on ATL → FLL | 74.6% | 1.12% | -2 min | 8.4% | 12,616 |
| All ATL → FLL flights | 72.2% | 1.47% | -2 min | 10.0% | 22,215 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1229 run worse on particular days?
Tuesday is historically the most reliable day and Monday the least, a gap of 17.1 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.
Other routes DL1229 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 |
|---|---|---|---|
| DTW→RSW Detroit to Fort Myers | 2025-10-06 – 2025-12-19 | 74 | — |
| RSW→DTW Fort Myers to Detroit | 2025-10-06 – 2025-12-19 | 63 | — |
| MCI→MSP Kansas City to Minneapolis | 2025-09-13 – 2025-10-04 | 4 | — |
| MSP→MCI Minneapolis to Kansas City | 2025-09-13 – 2025-10-04 | 4 | — |
| BOS→CVG Boston to Cincinnati / Covington | 2025-08-25 – 2025-09-10 | 13 | — |
| CVG→BOS Cincinnati / Covington to Boston | 2025-08-25 – 2025-09-10 | 13 | — |
| AUS→LAX Austin to Los Angeles | 2023-07-10 – 2023-09-04 | 57 | — |
| LAX→AUS Los Angeles to Austin | 2023-07-10 – 2023-08-06 | 28 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1229 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 865 records of DL1229 operating ATL → FLL, 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.