DL1321
DL1321 (Delta Air Lines) is a multi-stop service on 9 routes, busiest Detroit to Kansas City. Of 562 departures recorded from October 2024 to July 2026, 74.2% left on time, according to the US BTS.
- On-time departures74.2%of 562 flights
- Average delay17.3 min
- July 202631▲ 55.0%vs July 2025
- Cancelled1.3%
- Legs flown under this number9
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 | 27 | 30 | ▲ 11.1% |
| February | 26 | 28 | ▲ 7.7% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 7 | 30 | ▲ 328.6% |
| July | 20 | 31 | ▲ 55.0% |
| August | 12 | – | – |
| September | – | – | – |
| October | 28 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 172 | 211 | ▲ 22.7% |
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 | 76.9% | 76.7% | ▼ 0.3% |
| February | 84.6% | 77.8% | ▼ 8.1% |
| March | 87.1% | 71.0% | ▼ 18.5% |
| April | 83.3% | 80.0% | ▼ 4.0% |
| May | 80.7% | 82.8% | ▲ 2.6% |
| June | 71.4% | 43.3% | ▼ 39.3% |
| July | 90.0% | 67.7% | ▼ 24.7% |
| August | 91.7% | – | – |
| September | – | – | – |
| October | 55.6% | – | in progress |
| November | 53.9% | – | – |
| December | 61.3% | – | – |
| Year-to-date average (Jan–Jul) | 82.0% | 71.3% | ▼ 13.0% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 98.8% 555
- Cancelled 1.2% 7
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW MCI Detroit Metropolitan Wayne County Airport – Kansas City International Airport | 1,009 | 16.9 min | 75.5% | 391 |
| ATL EWR Hartsfield Jackson Atlanta International Airport – Newark Liberty International Airport | 1,199 | 31.4 min | 54.3% | 73 |
| MSP PIT Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Pittsburgh International Airport | 1,167 | 28.5 min | 62.5% | 32 |
| LAS SLC Harry Reid International Airport – Salt Lake City International Airport | 592 | -4.0 min | 100.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 31 | 31 | 54.8% | 0 |
| January 2025 | 27 | 26 | 76.9% | 1 |
| February 2025 | 26 | 26 | 84.6% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 7 | 7 | 71.4% | 0 |
| July 2025 | 20 | 20 | 90.0% | 0 |
| August 2025 | 12 | 12 | 91.7% | 0 |
| October 2025 | 28 | 27 | 55.6% | 1 |
| November 2025 | 28 | 26 | 53.9% | 2 |
| December 2025 | 31 | 31 | 61.3% | 0 |
| January 2026 | 30 | 30 | 76.7% | 0 |
| February 2026 | 28 | 27 | 77.8% | 1 |
| March 2026 | 31 | 31 | 71.0% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 31 | 29 | 82.8% | 2 |
| June 2026 | 30 | 30 | 43.3% | 0 |
| July 2026 | 31 | 31 | 67.7% | 0 |