DL1584
DL1584 (Delta Air Lines) is a multi-stop service on 8 routes, busiest Austin to Los Angeles. Of 503 departures recorded from October 2024 to July 2026, 74.9% left on time, according to the US BTS.
- On-time departures74.9%of 503 flights
- Average delay13.2 min
- July 202627▲ 17.4%vs July 2025
- Cancelled0.4%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 10 | 28 | ▲ 180.0% |
| February | – | 23 | – |
| March | 23 | 27 | ▲ 17.4% |
| April | 30 | 26 | ▼ 13.3% |
| May | 31 | 25 | ▼ 19.4% |
| June | 25 | 26 | ▲ 4.0% |
| July | 23 | 27 | ▲ 17.4% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 21 | – | in progress |
| November | 18 | – | – |
| December | 35 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | 75.0% | ▼ 6.3% |
| February | – | 82.6% | – |
| March | 91.3% | 59.3% | ▼ 35.1% |
| April | 83.3% | 88.5% | ▲ 6.2% |
| May | 77.4% | 91.7% | ▲ 18.4% |
| June | 36.0% | 76.9% | ▲ 113.7% |
| July | 31.8% | 88.9% | ▲ 179.4% |
| August | 85.0% | – | – |
| September | 88.2% | – | – |
| October | 81.0% | – | in progress |
| November | 44.4% | – | – |
| December | 74.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 99.6% 501
- Cancelled 0.4% 2
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS LAX Austin Bergstrom International Airport – Los Angeles International Airport | 1,995 | 17.6 min | 72.1% | 260 |
| LAS ATL Harry Reid International Airport – Hartsfield Jackson Atlanta International Airport | 2,805 | 1.7 min | 88.1% | 59 |
| AUS SLC Austin Bergstrom International Airport – Salt Lake City International Airport | 1,747 | 1.2 min | 83.3% | 42 |
| ORD MSP Chicago O'Hare International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 537 | 10.5 min | 71.9% | 32 |
| CLT DTW Charlotte Douglas International Airport – Detroit Metropolitan Wayne County Airport | 806 | 29.8 min | 64.5% | 31 |
| GSP ATL Greenville-Spartanburg International Airport – Hartsfield Jackson Atlanta International Airport | 247 | 12.2 min | 73.3% | 30 |
| ATL GSP Hartsfield Jackson Atlanta International Airport – Greenville-Spartanburg International Airport | 247 | 5.3 min | 76.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 13 | 13 | 84.6% | 0 |
| December 2024 | 42 | 42 | 76.2% | 0 |
| January 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 23 | 23 | 91.3% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 25 | 25 | 36.0% | 0 |
| July 2025 | 23 | 22 | 31.8% | 1 |
| August 2025 | 20 | 20 | 85.0% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 21 | 21 | 81.0% | 0 |
| November 2025 | 18 | 18 | 44.4% | 0 |
| December 2025 | 35 | 35 | 74.3% | 0 |
| January 2026 | 28 | 28 | 75.0% | 0 |
| February 2026 | 23 | 23 | 82.6% | 0 |
| March 2026 | 27 | 27 | 59.3% | 0 |
| April 2026 | 26 | 26 | 88.5% | 0 |
| May 2026 | 25 | 24 | 91.7% | 1 |
| June 2026 | 26 | 26 | 76.9% | 0 |
| July 2026 | 27 | 27 | 88.9% | 0 |