Flight profile · Delta Air Lines
DL442
Detroit (DTW) to San Francisco (SFO) · scheduled 3:50 PM – 6:13 PM
How DL442 performs
735 operations, 2024-06-07 to 2026-06-30.
DL442 arrived on time 69.8% of the time, against 74.4% for all DTW → SFO flights — this specific departure is 4.5 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 4.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 735 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL442 | 69.8% | 0.27% | 0 min | 7.0% | 735 |
| Delta Air Lines on DTW → SFO | 74.4% | 0.72% | -3 min | 7.4% | 4,052 |
| All DTW → SFO flights | 74.4% | 0.76% | -4 min | 7.7% | 5,009 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL442 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 |
|---|---|---|---|
| TLH→ATL Tallahassee to Atlanta | 2025-04-19 – 2025-05-03 | 3 | — |
| LAX→CVG Los Angeles to Cincinnati / Covington | 2023-07-01 – 2024-06-06 | 212 | 88.2% |
| ATL→MLB Atlanta to Melbourne | 2024-05-11 – 2024-06-01 | 5 | — |
| MLB→ATL Melbourne to Atlanta | 2024-05-11 – 2024-06-01 | 5 | — |
| SEA→MSP Seattle to Minneapolis | 2024-04-09 – 2024-05-06 | 28 | — |
| DTW→LAX Detroit to Los Angeles | 2024-01-08 – 2024-03-09 | 62 | — |
| ATL→MSY Atlanta to New Orleans | 2023-11-23 – 2023-11-23 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route DL442 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 735 records of DL442 operating DTW → SFO, 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.