DL1177
DL1177 (Delta Air Lines) is a multi-stop service on 2 routes, busiest San Diego to Salt Lake City. Of 1,314 departures recorded from October 2024 to July 2026, 90.9% left on time, according to the US BTS.
- On-time departures90.9%of 1,314 flights
- Average delay3.0 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number2
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 | 62 | 62 | 0.0% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 58 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 424 | 424 | 0.0% |
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 | 91.9% | 91.9% | 0.0% |
| February | 80.4% | 98.2% | ▲ 22.2% |
| March | 90.3% | 98.3% | ▲ 8.9% |
| April | 90.0% | 98.3% | ▲ 9.3% |
| May | 91.9% | 96.7% | ▲ 5.1% |
| June | 88.3% | 85.0% | ▼ 3.8% |
| July | 87.1% | 98.4% | ▲ 13.0% |
| August | 91.9% | – | – |
| September | 83.3% | – | – |
| October | 98.4% | – | in progress |
| November | 87.5% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 88.6% | 95.3% | ▲ 7.6% |
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 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 99.5% 1,308
- Cancelled 0.5% 6
Share of all recorded flights in the period, all legs. · Oct 12, 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 | 1.0 min | 92.2% | 657 |
| SAN SLC San Diego International Airport – Salt Lake City International Airport | 1,008 | 5.0 min | 89.6% | 657 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 60 | 60 | 93.3% | 0 |
| December 2024 | 62 | 62 | 72.6% | 0 |
| January 2025 | 62 | 62 | 91.9% | 0 |
| February 2025 | 56 | 56 | 80.4% | 0 |
| March 2025 | 62 | 62 | 90.3% | 0 |
| April 2025 | 60 | 60 | 90.0% | 0 |
| May 2025 | 62 | 62 | 91.9% | 0 |
| June 2025 | 60 | 60 | 88.3% | 0 |
| July 2025 | 62 | 62 | 87.1% | 0 |
| August 2025 | 62 | 62 | 91.9% | 0 |
| September 2025 | 60 | 60 | 83.3% | 0 |
| October 2025 | 62 | 62 | 98.4% | 0 |
| November 2025 | 58 | 56 | 87.5% | 2 |
| December 2025 | 62 | 62 | 93.6% | 0 |
| January 2026 | 62 | 62 | 91.9% | 0 |
| February 2026 | 56 | 56 | 98.2% | 0 |
| March 2026 | 62 | 60 | 98.3% | 2 |
| April 2026 | 60 | 60 | 98.3% | 0 |
| May 2026 | 62 | 60 | 96.7% | 2 |
| June 2026 | 60 | 60 | 85.0% | 0 |
| July 2026 | 62 | 62 | 98.4% | 0 |