DL1252
DL1252 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Salt Lake City to San Diego. Of 613 departures recorded from October 2024 to July 2026, 82.5% left on time, according to the US BTS.
- On-time departures82.5%of 613 flights
- Average delay8.3 min
- July 202626▲ 13.0%vs July 2025
- Cancelled0.0%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 28 | ▼ 6.7% |
| February | 22 | 20 | ▼ 9.1% |
| March | 26 | 22 | ▼ 15.4% |
| April | 26 | 42 | ▲ 61.5% |
| May | 25 | 30 | ▲ 20.0% |
| June | 24 | 41 | ▲ 70.8% |
| July | 23 | 26 | ▲ 13.0% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 26 | – | in progress |
| November | 25 | – | – |
| December | 35 | – | – |
| Year to date (Jan–Jul) | 176 | 209 | ▲ 18.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 73.3% | 82.1% | ▲ 12.0% |
| February | 77.3% | 100.0% | ▲ 29.4% |
| March | 76.9% | 86.4% | ▲ 12.3% |
| April | 76.9% | 92.9% | ▲ 20.7% |
| May | 76.0% | 76.7% | ▲ 0.9% |
| June | 83.3% | 70.7% | ▼ 15.1% |
| July | 69.6% | 69.2% | ▼ 0.5% |
| August | 95.0% | – | – |
| September | 88.2% | – | – |
| October | 88.5% | – | in progress |
| November | 84.0% | – | – |
| December | 77.1% | – | – |
| Year-to-date average (Jan–Jul) | 76.2% | 82.6% | ▲ 8.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 0 |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 100.0% 613
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SLC SAN Salt Lake City International Airport – San Diego International Airport | 1,008 | 9.8 min | 81.1% | 481 |
| SAN SLC San Diego International Airport – Salt Lake City International Airport | 1,008 | 2.8 min | 87.6% | 129 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 91.7% | 0 |
| November 2024 | 33 | 33 | 84.9% | 0 |
| December 2024 | 48 | 48 | 95.8% | 0 |
| January 2025 | 30 | 30 | 73.3% | 0 |
| February 2025 | 22 | 22 | 77.3% | 0 |
| March 2025 | 26 | 26 | 76.9% | 0 |
| April 2025 | 26 | 26 | 76.9% | 0 |
| May 2025 | 25 | 25 | 76.0% | 0 |
| June 2025 | 24 | 24 | 83.3% | 0 |
| July 2025 | 23 | 23 | 69.6% | 0 |
| August 2025 | 20 | 20 | 95.0% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 26 | 26 | 88.5% | 0 |
| November 2025 | 25 | 25 | 84.0% | 0 |
| December 2025 | 35 | 35 | 77.1% | 0 |
| January 2026 | 28 | 28 | 82.1% | 0 |
| February 2026 | 20 | 20 | 100.0% | 0 |
| March 2026 | 22 | 22 | 86.4% | 0 |
| April 2026 | 42 | 42 | 92.9% | 0 |
| May 2026 | 30 | 30 | 76.7% | 0 |
| June 2026 | 41 | 41 | 70.7% | 0 |
| July 2026 | 26 | 26 | 69.2% | 0 |