Flight profile · Delta Air Lines
DL779
Atlanta (ATL) to Ontario (ONT) · scheduled 8:59 PM – 10:52 PM
How DL779 performs
623 operations, 2024-06-07 to 2026-06-29.
DL779 arrived on time 66.4% of the time, against 76.9% for all ATL → ONT flights — this specific departure is 10.5 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 11.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 623 operations between 2024-06-07 to 2026-06-29
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL779 | 66.4% | 1.61% | 2 min | 10.7% | 623 |
| Delta Air Lines on ATL → ONT | 77.5% | 1.30% | -4 min | 6.6% | 2,764 |
| All ATL → ONT flights | 76.9% | 1.38% | -4 min | 6.9% | 2,831 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-29
Other routes DL779 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 |
|---|---|---|---|
| DCA→SEA Washington to Seattle | 2026-02-12 – 2026-03-07 | 24 | — |
| SFO→JFK San Francisco to New York | 2023-07-02 – 2024-06-06 | 198 | 88.8% |
| SJC→MSP San Jose to Minneapolis | 2024-04-09 – 2024-05-06 | 24 | — |
| LGA→ATL New York to Atlanta | 2024-03-11 – 2024-04-08 | 25 | — |
| SLC→RNO Salt Lake City to Reno | 2024-01-08 – 2024-03-09 | 62 | — |
| JFK→SFO New York to San Francisco | 2023-07-02 – 2024-01-07 | 184 | 88.6% |
Because the same number has served different journeys, the statistics above describe only the route DL779 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 623 records of DL779 operating ATL → ONT, 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.