Flight profile · Delta Air Lines
DL1252
Salt Lake City (SLC) to San Diego (SAN) · scheduled 5:50 PM – 6:12 PM
How DL1252 performs
552 operations, 2024-06-07 to 2026-06-26.
DL1252 arrived on time 79.4% of the time, against 82.1% for all SLC → SAN flights — this specific departure is 2.7 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 552 operations between 2024-06-07 to 2026-06-26
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1252 | 79.4% | 0.18% | -5 min | 5.8% | 552 |
| Delta Air Lines on SLC → SAN | 83.1% | 0.52% | -6 min | 4.8% | 5,199 |
| All SLC → SAN flights | 82.1% | 0.55% | -6 min | 5.0% | 8,023 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-26
Other routes DL1252 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 |
|---|---|---|---|
| SAN→SLC San Diego to Salt Lake City | 2024-06-07 – 2026-06-26 | 222 | 81.4% |
| MSP→ATL Minneapolis to Atlanta | 2026-02-16 – 2026-03-02 | 3 | — |
| MSY→ATL New Orleans to Atlanta | 2024-09-14 – 2024-10-05 | 4 | — |
| MSP→BOS Minneapolis to Boston | 2023-07-01 – 2024-06-06 | 229 | 87.3% |
| SLC→MEM Salt Lake City to Memphis | 2024-05-11 – 2024-06-01 | 5 | — |
| LAX→SLC Los Angeles to Salt Lake City | 2024-04-09 – 2024-05-06 | 28 | — |
| DEN→SLC Denver to Salt Lake City | 2024-01-08 – 2024-03-09 | 59 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1252 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 552 records of DL1252 operating SLC → SAN, 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.