Flight profile · Delta Air Lines
DL31
Atlanta (ATL) to Dallas–Fort Worth (DFW) · scheduled 8:55 PM – 9:45 PM
How DL31 performs
1,024 operations, 2023-07-05 to 2026-06-06.
DL31 arrived on time 65.7% of the time, against 73.2% for all ATL → DFW flights — this specific departure is 7.5 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 8.3 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,024 operations between 2023-07-05 to 2026-06-06
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL31 | 65.7% | 1.17% | 3 min | 12.4% | 1,024 |
| Delta Air Lines on ATL → DFW | 74.0% | 1.60% | -1 min | 8.0% | 8,399 |
| All ATL → DFW flights | 73.2% | 2.12% | -2 min | 10.1% | 19,753 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-06
By day of week
Does DL31 run worse on particular days?
Wednesday is historically the most reliable day and Sunday the least, a gap of 26.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-06 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,024 records of DL31 operating ATL → DFW, 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.