DL1253
DL1253 (Delta Air Lines) is a multi-stop service on 11 routes, busiest Atlanta to Detroit. Of 640 departures recorded from October 2024 to July 2026, 76.2% left on time, according to the US BTS.
- On-time departures76.2%of 640 flights
- Average delay17.3 min
- July 202631▲ 0.0%vs July 2025
- Cancelled3.6%
- Legs flown under this number11
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 | 25 | 26 | ▲ 4.0% |
| February | 28 | 27 | ▼ 3.6% |
| March | 31 | 55 | ▲ 77.4% |
| April | 22 | 42 | ▲ 90.9% |
| May | 29 | 30 | ▲ 3.4% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 196 | 241 | ▲ 23.0% |
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 | 79.2% | 91.7% | ▲ 15.8% |
| February | 82.1% | 83.3% | ▲ 1.4% |
| March | 74.2% | 79.3% | ▲ 6.8% |
| April | 77.3% | 97.6% | ▲ 26.3% |
| May | 72.4% | 85.7% | ▲ 18.4% |
| June | 56.7% | 70.4% | ▲ 24.2% |
| July | 61.3% | 53.9% | ▼ 12.1% |
| August | 64.5% | – | – |
| September | 73.3% | – | – |
| October | 87.1% | – | in progress |
| November | 82.8% | – | – |
| December | 87.5% | – | – |
| Year-to-date average (Jan–Jul) | 71.9% | 80.3% | ▲ 11.7% |
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 | 1 | 2 | ▲ 100.0% |
| February | 0 | 3 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 3 | – |
| July | 0 | 5 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 4 | – | – |
| Year to date (Jan–Jul) | 1 | 17 | ▲ 1,600.0% |
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 96.4% 617
- Cancelled 3.6% 23
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL DTW Hartsfield Jackson Atlanta International Airport – Detroit Metropolitan Wayne County Airport | 958 | 18.4 min | 71.4% | 347 |
| JFK DTW John F. Kennedy International Airport – Detroit Metropolitan Wayne County Airport | 817 | 42.9 min | 69.7% | 86 |
| LGA MCO LaGuardia Airport – Orlando International Airport | 1,531 | 4.3 min | 91.9% | 41 |
| AVL ATL Asheville Regional Airport – Hartsfield Jackson Atlanta International Airport | 264 | -2.1 min | 91.4% | 36 |
| ATL AVL Hartsfield Jackson Atlanta International Airport – Asheville Regional Airport | 264 | 2.7 min | 85.7% | 36 |
| LGA RDU LaGuardia Airport – Raleigh-Durham International Airport | 693 | 0.1 min | 93.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 57.1% | 0 |
| November 2024 | 19 | 19 | 84.2% | 0 |
| December 2024 | 20 | 20 | 55.0% | 0 |
| January 2025 | 25 | 24 | 79.2% | 1 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 22 | 22 | 77.3% | 0 |
| May 2025 | 29 | 29 | 72.4% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 31 | 31 | 61.3% | 0 |
| August 2025 | 31 | 31 | 64.5% | 0 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 30 | 29 | 82.8% | 1 |
| December 2025 | 28 | 24 | 87.5% | 4 |
| January 2026 | 26 | 24 | 91.7% | 2 |
| February 2026 | 27 | 24 | 83.3% | 3 |
| March 2026 | 55 | 53 | 79.3% | 2 |
| April 2026 | 42 | 42 | 97.6% | 0 |
| May 2026 | 30 | 28 | 85.7% | 2 |
| June 2026 | 30 | 27 | 70.4% | 3 |
| July 2026 | 31 | 26 | 53.9% | 5 |