DL2455
DL2455 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Salt Lake City to St Louis. Of 1,027 departures recorded from October 2024 to July 2026, 89.5% left on time, according to the US BTS.
- On-time departures89.5%of 1,027 flights
- Average delay1.0 min
- July 202658▲ 1.8%vs July 2025
- Cancelled0.3%
- 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 | 40 | 8 | ▼ 80.0% |
| February | 32 | 2 | ▼ 93.8% |
| March | 45 | 43 | ▼ 4.4% |
| April | 46 | 54 | ▲ 17.4% |
| May | 55 | 57 | ▲ 3.6% |
| June | 56 | 56 | 0.0% |
| July | 57 | 58 | ▲ 1.8% |
| August | 52 | – | – |
| September | 56 | – | – |
| October | 57 | – | in progress |
| November | 53 | – | – |
| December | 60 | – | – |
| Year to date (Jan–Jul) | 331 | 278 | ▼ 16.0% |
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 | 81.6% | 100.0% | ▲ 22.6% |
| February | 90.6% | 100.0% | ▲ 10.3% |
| March | 97.8% | 93.0% | ▼ 4.9% |
| April | 84.8% | 87.0% | ▲ 2.7% |
| May | 90.9% | 96.5% | ▲ 6.1% |
| June | 83.6% | 85.7% | ▲ 2.5% |
| July | 87.7% | 96.6% | ▲ 10.1% |
| August | 84.6% | – | – |
| September | 85.7% | – | – |
| October | 98.3% | – | in progress |
| November | 86.8% | – | – |
| December | 78.3% | – | – |
| Year-to-date average (Jan–Jul) | 88.1% | 94.1% | ▲ 6.8% |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 0 | ▼ 100.0% |
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 99.7% 1,024
- Cancelled 0.3% 3
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 STL Salt Lake City International Airport – St. Louis Lambert International Airport | 1,856 | 1.6 min | 89.8% | 561 |
| STL SLC St. Louis Lambert International Airport – Salt Lake City International Airport | 1,856 | 0.3 min | 88.9% | 463 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 32 | 32 | 93.8% | 0 |
| November 2024 | 53 | 53 | 94.3% | 0 |
| December 2024 | 55 | 55 | 90.9% | 0 |
| January 2025 | 40 | 38 | 81.6% | 2 |
| February 2025 | 32 | 32 | 90.6% | 0 |
| March 2025 | 45 | 45 | 97.8% | 0 |
| April 2025 | 46 | 46 | 84.8% | 0 |
| May 2025 | 55 | 55 | 90.9% | 0 |
| June 2025 | 56 | 55 | 83.6% | 1 |
| July 2025 | 57 | 57 | 87.7% | 0 |
| August 2025 | 52 | 52 | 84.6% | 0 |
| September 2025 | 56 | 56 | 85.7% | 0 |
| October 2025 | 57 | 57 | 98.3% | 0 |
| November 2025 | 53 | 53 | 86.8% | 0 |
| December 2025 | 60 | 60 | 78.3% | 0 |
| January 2026 | 8 | 8 | 100.0% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 43 | 43 | 93.0% | 0 |
| April 2026 | 54 | 54 | 87.0% | 0 |
| May 2026 | 57 | 57 | 96.5% | 0 |
| June 2026 | 56 | 56 | 85.7% | 0 |
| July 2026 | 58 | 58 | 96.6% | 0 |