Flight profile · Delta Air Lines
DL1277
Salt Lake City (SLC) to Santa Ana (SNA) · scheduled 3:15 PM – 4:20 PM
How DL1277 performs
745 operations, 2024-06-07 to 2026-06-28.
DL1277 arrived on time 80.3% of the time, against 84.4% for all SLC → SNA flights — this specific departure is 4.1 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 745 operations between 2024-06-07 to 2026-06-28
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1277 | 80.3% | 0.40% | -6 min | 6.6% | 745 |
| Delta Air Lines on SLC → SNA | 84.2% | 0.30% | -8 min | 4.4% | 4,973 |
| All SLC → SNA flights | 84.4% | 0.38% | -8 min | 4.4% | 5,274 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-28
Other routes DL1277 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 |
|---|---|---|---|
| SNA→SLC Santa Ana to Salt Lake City | 2024-06-07 – 2026-06-28 | 721 | 82.3% |
| SLC→MCI Salt Lake City to Kansas City | 2023-07-01 – 2024-06-06 | 174 | 91.3% |
| MCI→SLC Kansas City to Salt Lake City | 2023-07-01 – 2024-06-05 | 174 | 91.9% |
| OKC→ATL Oklahoma City to Atlanta | 2024-04-09 – 2024-05-06 | 28 | — |
| JAC→SLC Jackson to Salt Lake City | 2024-01-08 – 2024-03-09 | 62 | — |
| SLC→JAC Salt Lake City to Jackson | 2024-01-08 – 2024-03-09 | 62 | — |
| ATL→BUF Atlanta to Buffalo | 2023-09-05 – 2023-11-04 | 16 | — |
| BUF→ATL Buffalo to Atlanta | 2023-09-05 – 2023-11-04 | 14 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1277 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 745 records of DL1277 operating SLC → SNA, 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.