DL1329
DL1329 (Delta Air Lines) is a multi-stop service on 6 routes, busiest Atlanta to Philadelphia. Of 743 departures recorded from October 2024 to July 2026, 67.6% left on time, according to the US BTS.
- On-time departures67.6%of 743 flights
- Average delay22.6 min
- July 202631▲ 3.3%vs July 2025
- Cancelled3.6%
- Legs flown under this number6
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 | 24 | 46 | ▲ 91.7% |
| February | 18 | 52 | ▲ 188.9% |
| March | 26 | 52 | ▲ 100.0% |
| April | 28 | 53 | ▲ 89.3% |
| May | 20 | 15 | ▼ 25.0% |
| June | 28 | 25 | ▼ 10.7% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 32 | – | – |
| October | 47 | – | in progress |
| November | 49 | – | – |
| December | 34 | – | – |
| Year to date (Jan–Jul) | 174 | 274 | ▲ 57.5% |
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 | 59.1% | 65.1% | ▲ 10.2% |
| February | 55.6% | 62.5% | ▲ 12.5% |
| March | 57.7% | 75.5% | ▲ 30.9% |
| April | 71.4% | 81.1% | ▲ 13.6% |
| May | 70.0% | 61.5% | ▼ 12.1% |
| June | 40.7% | 65.2% | ▲ 60.1% |
| July | 24.1% | 42.9% | ▲ 77.5% |
| August | 76.7% | – | – |
| September | 81.3% | – | – |
| October | 78.7% | – | in progress |
| November | 76.1% | – | – |
| December | 62.5% | – | – |
| Year-to-date average (Jan–Jul) | 54.1% | 64.8% | ▲ 19.9% |
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 | 2 | 3 | ▲ 50.0% |
| February | 0 | 4 | – |
| March | 0 | 3 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 1 | 2 | ▲ 100.0% |
| July | 1 | 3 | ▲ 200.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 4 | 17 | ▲ 325.0% |
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% 716
- Cancelled 3.6% 27
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL PHL Hartsfield Jackson Atlanta International Airport – Philadelphia International Airport | 1,072 | 24.7 min | 65.4% | 410 |
| PHL ATL Philadelphia International Airport – Hartsfield Jackson Atlanta International Airport | 1,072 | 21.3 min | 63.3% | 199 |
| MSP IND Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Indianapolis International Airport | 808 | 14.9 min | 81.1% | 54 |
| IND MSP Indianapolis International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 808 | 24.0 min | 77.4% | 54 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 32 | 32 | 81.3% | 0 |
| December 2024 | 50 | 50 | 74.0% | 0 |
| January 2025 | 24 | 22 | 59.1% | 2 |
| February 2025 | 18 | 18 | 55.6% | 0 |
| March 2025 | 26 | 26 | 57.7% | 0 |
| April 2025 | 28 | 28 | 71.4% | 0 |
| May 2025 | 20 | 20 | 70.0% | 0 |
| June 2025 | 28 | 27 | 40.7% | 1 |
| July 2025 | 30 | 29 | 24.1% | 1 |
| August 2025 | 31 | 30 | 76.7% | 1 |
| September 2025 | 32 | 32 | 81.3% | 0 |
| October 2025 | 47 | 47 | 78.7% | 0 |
| November 2025 | 49 | 46 | 76.1% | 3 |
| December 2025 | 34 | 32 | 62.5% | 2 |
| January 2026 | 46 | 43 | 65.1% | 3 |
| February 2026 | 52 | 48 | 62.5% | 4 |
| March 2026 | 52 | 49 | 75.5% | 3 |
| April 2026 | 53 | 53 | 81.1% | 0 |
| May 2026 | 15 | 13 | 61.5% | 2 |
| June 2026 | 25 | 23 | 65.2% | 2 |
| July 2026 | 31 | 28 | 42.9% | 3 |