DL2879
DL2879 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Atlanta to Chicago. Of 897 departures recorded from October 2024 to July 2026, 66.1% left on time, according to the US BTS.
- On-time departures66.1%of 897 flights
- Average delay26.1 min
- July 202631▼ 38.0%vs July 2025
- Cancelled2.9%
- Legs flown under this number4
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 | 40 | ▲ 60.0% |
| February | 6 | 22 | ▲ 266.7% |
| March | 43 | 48 | ▲ 11.6% |
| April | 51 | 53 | ▲ 3.9% |
| May | 52 | 51 | ▼ 1.9% |
| June | 51 | 34 | ▼ 33.3% |
| July | 50 | 31 | ▼ 38.0% |
| August | 47 | – | – |
| September | 41 | – | – |
| October | 47 | – | in progress |
| November | 44 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 278 | 279 | ▲ 0.4% |
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 | 80.0% | 68.6% | ▼ 14.3% |
| February | 100.0% | 86.4% | ▼ 13.6% |
| March | 74.4% | 47.7% | ▼ 35.9% |
| April | 76.0% | 70.0% | ▼ 7.9% |
| May | 73.1% | 64.7% | ▼ 11.5% |
| June | 40.8% | 67.7% | ▲ 65.7% |
| July | 42.2% | 38.7% | ▼ 8.3% |
| August | 68.9% | – | – |
| September | 87.8% | – | – |
| October | 72.3% | – | in progress |
| November | 75.6% | – | – |
| December | 44.4% | – | – |
| Year-to-date average (Jan–Jul) | 69.5% | 63.4% | ▼ 8.8% |
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 | 5 | – |
| February | 0 | 0 | – |
| March | 0 | 4 | – |
| April | 1 | 3 | ▲ 200.0% |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 5 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 8 | 12 | ▲ 50.0% |
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 97.1% 871
- Cancelled 2.9% 26
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 |
|---|---|---|---|---|
| ATL ORD Hartsfield Jackson Atlanta International Airport – Chicago O'Hare International Airport | 976 | 21.0 min | 70.2% | 582 |
| ORD ATL Chicago O'Hare International Airport – Hartsfield Jackson Atlanta International Airport | 976 | 36.7 min | 57.9% | 307 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 30 | 30 | 90.0% | 0 |
| November 2024 | 35 | 35 | 74.3% | 0 |
| December 2024 | 50 | 50 | 62.0% | 0 |
| January 2025 | 25 | 25 | 80.0% | 0 |
| February 2025 | 6 | 6 | 100.0% | 0 |
| March 2025 | 43 | 43 | 74.4% | 0 |
| April 2025 | 51 | 50 | 76.0% | 1 |
| May 2025 | 52 | 52 | 73.1% | 0 |
| June 2025 | 51 | 49 | 40.8% | 2 |
| July 2025 | 50 | 45 | 42.2% | 5 |
| August 2025 | 47 | 45 | 68.9% | 2 |
| September 2025 | 41 | 41 | 87.8% | 0 |
| October 2025 | 47 | 47 | 72.3% | 0 |
| November 2025 | 44 | 41 | 75.6% | 3 |
| December 2025 | 46 | 45 | 44.4% | 1 |
| January 2026 | 40 | 35 | 68.6% | 5 |
| February 2026 | 22 | 22 | 86.4% | 0 |
| March 2026 | 48 | 44 | 47.7% | 4 |
| April 2026 | 53 | 50 | 70.0% | 3 |
| May 2026 | 51 | 51 | 64.7% | 0 |
| June 2026 | 34 | 34 | 67.7% | 0 |
| July 2026 | 31 | 31 | 38.7% | 0 |