DL559
DL559 (Delta Air Lines) is a multi-stop service on 19 routes, busiest Austin to Detroit. Of 519 departures recorded from October 2024 to July 2026, 79.4% left on time, according to the US BTS.
- On-time departures79.4%of 519 flights
- Average delay10.4 min
- July 202624▲ 4.3%vs July 2025
- Cancelled1.0%
- Legs flown under this number19
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | ▲ 3.3% |
| February | 28 | 38 | ▲ 35.7% |
| March | 31 | 36 | ▲ 16.1% |
| April | 28 | 28 | 0.0% |
| May | 30 | 31 | ▲ 3.3% |
| June | 23 | 25 | ▲ 8.7% |
| July | 23 | 24 | ▲ 4.3% |
| August | 11 | – | – |
| September | 14 | – | – |
| October | 28 | – | in progress |
| November | 18 | – | – |
| December | 12 | – | – |
| Year to date (Jan–Jul) | 193 | 213 | ▲ 10.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 80.0% | 75.9% | ▼ 5.2% |
| February | 75.0% | 79.0% | ▲ 5.3% |
| March | 67.7% | 88.9% | ▲ 31.2% |
| April | 67.9% | 89.3% | ▲ 31.6% |
| May | 70.0% | 93.1% | ▲ 33.0% |
| June | 69.6% | 92.0% | ▲ 32.2% |
| July | 69.6% | 95.7% | ▲ 37.5% |
| August | 81.8% | – | – |
| September | 85.7% | – | – |
| October | 89.3% | – | in progress |
| November | 77.8% | – | – |
| December | 58.3% | – | – |
| Year-to-date average (Jan–Jul) | 71.4% | 87.7% | ▲ 22.8% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 5 |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.0% 514
- Cancelled 1.0% 5
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 DTW Austin Bergstrom International Airport – Detroit Metropolitan Wayne County Airport | 1,848 | 5.3 min | 91.5% | 132 |
| LAS MSP Harry Reid International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,088 | 12.6 min | 74.2% | 62 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 8.6 min | 81.8% | 57 |
| MIA LAX Miami International Airport – Los Angeles International Airport | 3,763 | 16.7 min | 64.4% | 45 |
| BOS DFW Boston Logan International Airport – Dallas Fort Worth International Airport | 2,509 | 22.3 min | 61.1% | 36 |
| PHX MSP Phoenix Sky Harbor International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,051 | 6.2 min | 85.3% | 34 |
| ORF ATL Norfolk International Airport – Hartsfield Jackson Atlanta International Airport | 830 | 41.8 min | 62.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 100.0% | 0 |
| November 2024 | 6 | 6 | 33.3% | 0 |
| December 2024 | 17 | 17 | 76.5% | 0 |
| January 2025 | 30 | 30 | 80.0% | 0 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 28 | 28 | 67.9% | 0 |
| May 2025 | 30 | 30 | 70.0% | 0 |
| June 2025 | 23 | 23 | 69.6% | 0 |
| July 2025 | 23 | 23 | 69.6% | 0 |
| August 2025 | 11 | 11 | 81.8% | 0 |
| September 2025 | 14 | 14 | 85.7% | 0 |
| October 2025 | 28 | 28 | 89.3% | 0 |
| November 2025 | 18 | 18 | 77.8% | 0 |
| December 2025 | 12 | 12 | 58.3% | 0 |
| January 2026 | 31 | 29 | 75.9% | 2 |
| February 2026 | 38 | 38 | 79.0% | 0 |
| March 2026 | 36 | 36 | 88.9% | 0 |
| April 2026 | 28 | 28 | 89.3% | 0 |
| May 2026 | 31 | 29 | 93.1% | 2 |
| June 2026 | 25 | 25 | 92.0% | 0 |
| July 2026 | 24 | 23 | 95.7% | 1 |