Flight profile · Delta Air Lines
DL378
Atlanta (ATL) to Washington (DCA) · scheduled 8:59 PM – 10:42 PM
How DL378 performs
693 operations, 2023-12-16 to 2026-06-30.
DL378 arrived on time 62.8% of the time, against 74.2% for all ATL → DCA flights — this specific departure is 11.4 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 9.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 693 operations between 2023-12-16 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL378 | 62.8% | 2.31% | 4 min | 13.7% | 693 |
| Delta Air Lines on ATL → DCA | 71.9% | 1.72% | 0 min | 8.4% | 11,479 |
| All ATL → DCA flights | 74.2% | 2.20% | -3 min | 8.5% | 20,601 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-12-16 to 2026-06-30
Other routes DL378 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 | 2026-06-06 – 2026-06-06 | 1 | — |
| ATL→CHA Atlanta to Chattanooga | 2025-05-13 – 2025-06-03 | 4 | — |
| TUL→ATL Tulsa to Atlanta | 2024-11-29 – 2024-11-29 | 1 | — |
| JFK→SFO New York to San Francisco | 2024-05-07 – 2024-06-06 | 26 | — |
| MSP→CLE Minneapolis to Cleveland | 2024-05-26 – 2024-05-26 | 1 | — |
| LAX→MCO Los Angeles to Orlando | 2023-09-10 – 2023-12-15 | 36 | — |
| BOS→LAS Boston to Las Vegas | 2023-11-20 – 2023-11-24 | 3 | — |
| ATL→PHX Atlanta to Phoenix | 2023-10-28 – 2023-11-04 | 8 | — |
| PHX→ATL Phoenix to Atlanta | 2023-10-29 – 2023-11-03 | 4 | — |
| SEA→MCO Seattle to Orlando | 2023-10-09 – 2023-10-27 | 19 | — |
| PNS→ATL Pensacola to Atlanta | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route DL378 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 693 records of DL378 operating ATL → DCA, 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.