DL2004
DL2004 (Delta Air Lines) is a multi-stop service on 9 routes, busiest Los Angeles to Denver. Of 859 departures recorded from October 2024 to July 2026, 74.2% left on time, according to the US BTS.
- On-time departures74.2%of 859 flights
- Average delay16.6 min
- July 202631▼ 49.2%vs July 2025
- Cancelled1.6%
- Legs flown under this number9
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 | 33 | 3 | ▼ 90.9% |
| February | 28 | 17 | ▼ 39.3% |
| March | 31 | 55 | ▲ 77.4% |
| April | 30 | 24 | ▼ 20.0% |
| May | 56 | 25 | ▼ 55.4% |
| June | 60 | 30 | ▼ 50.0% |
| July | 61 | 31 | ▼ 49.2% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 58 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 299 | 185 | ▼ 38.1% |
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 | 87.9% | 66.7% | ▼ 24.1% |
| February | 78.6% | 82.4% | ▲ 4.8% |
| March | 80.7% | 87.0% | ▲ 7.9% |
| April | 80.0% | 100.0% | ▲ 25.0% |
| May | 60.7% | 96.0% | ▲ 58.1% |
| June | 46.6% | 89.7% | ▲ 92.6% |
| July | 41.0% | 90.3% | ▲ 120.4% |
| August | 54.8% | – | – |
| September | 78.3% | – | – |
| October | 80.7% | – | in progress |
| November | 71.2% | – | – |
| December | 76.7% | – | – |
| Year-to-date average (Jan–Jul) | 67.9% | 87.4% | ▲ 28.8% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 1 | ▼ 50.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 6 | – | – |
| December | 4 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 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 98.4% 845
- Cancelled 1.6% 14
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAX DEN Los Angeles International Airport – Denver International Airport | 1,385 | 14.1 min | 71.4% | 321 |
| DEN LAX Denver International Airport – Los Angeles International Airport | 1,385 | 30.3 min | 60.3% | 235 |
| BOS LAX Boston Logan International Airport – Los Angeles International Airport | 4,193 | 2.3 min | 91.8% | 86 |
| SLC BOI Salt Lake City International Airport – Boise Air Terminal/Gowen Field | 466 | 14.3 min | 85.5% | 62 |
| PNS ATL Pensacola International Airport – Hartsfield Jackson Atlanta International Airport | 437 | -1.9 min | 91.7% | 36 |
| FLL DTW Fort Lauderdale Hollywood International Airport – Detroit Metropolitan Wayne County Airport | 1,819 | 34.9 min | 72.2% | 36 |
| ATL PNS Hartsfield Jackson Atlanta International Airport – Pensacola International Airport | 437 | 3.3 min | 91.7% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 83.3% | 0 |
| December 2024 | 36 | 36 | 94.4% | 0 |
| January 2025 | 33 | 33 | 87.9% | 0 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 56 | 56 | 60.7% | 0 |
| June 2025 | 60 | 58 | 46.6% | 2 |
| July 2025 | 61 | 61 | 41.0% | 0 |
| August 2025 | 62 | 62 | 54.8% | 0 |
| September 2025 | 60 | 60 | 78.3% | 0 |
| October 2025 | 62 | 62 | 80.7% | 0 |
| November 2025 | 58 | 52 | 71.2% | 6 |
| December 2025 | 47 | 43 | 76.7% | 4 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 17 | 17 | 82.4% | 0 |
| March 2026 | 55 | 54 | 87.0% | 1 |
| April 2026 | 24 | 24 | 100.0% | 0 |
| May 2026 | 25 | 25 | 96.0% | 0 |
| June 2026 | 30 | 29 | 89.7% | 1 |
| July 2026 | 31 | 31 | 90.3% | 0 |