Flight profile · Delta Air Lines
DL439
Dallas–Fort Worth (DFW) to Los Angeles (LAX) · scheduled 6:15 AM – 7:33 AM
How DL439 performs
812 operations, 2024-03-10 to 2026-06-30.
DL439 arrived on time 91.5% of the time, against 72.8% for all DFW → LAX flights — this specific departure is 18.6 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.2 points better.
Source: US DOT Bureau of Transportation Statistics · 812 operations between 2024-03-10 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL439 | 91.5% | 1.60% | -9 min | 3.9% | 812 |
| Delta Air Lines on DFW → LAX | 86.3% | 1.02% | -9 min | 5.7% | 2,148 |
| All DFW → LAX flights | 72.8% | 1.52% | -4 min | 9.4% | 20,099 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-03-10 to 2026-06-30
Other routes DL439 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 |
|---|---|---|---|
| DFW→MSP Dallas–Fort Worth to Minneapolis | 2024-05-07 – 2024-06-06 | 26 | — |
| BOS→SLC Boston to Salt Lake City | 2024-05-11 – 2024-06-01 | 5 | — |
| JFK→LAX New York to Los Angeles | 2024-01-13 – 2024-03-09 | 9 | — |
| PBI→LGA West Palm Beach to New York | 2024-01-01 – 2024-01-07 | 6 | — |
| MIA→JFK Miami to New York | 2023-12-16 – 2023-12-31 | 16 | — |
| JFK→LAS New York to Las Vegas | 2023-09-07 – 2023-12-15 | 72 | — |
| SEA→SMF Seattle to Sacramento | 2023-11-23 – 2023-11-24 | 2 | — |
| SAN→BOS San Diego to Boston | 2023-07-02 – 2023-09-04 | 56 | — |
| ATL→ILM Atlanta to Wilmington | 2023-07-15 – 2023-07-29 | 3 | — |
| ILM→ATL Wilmington to Atlanta | 2023-07-15 – 2023-07-29 | 3 | — |
| DTW→LGA Detroit to New York | 2023-07-08 – 2023-07-08 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route DL439 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 812 records of DL439 operating DFW → LAX, 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.