DL1621
DL1621 (Delta Air Lines) is a multi-stop service on 10 routes, busiest Charlotte to Detroit. Of 702 departures recorded from October 2024 to July 2026, 79.5% left on time, according to the US BTS.
- On-time departures79.5%of 702 flights
- Average delay10.1 min
- July 202654▲ 80.0%vs July 2025
- Cancelled0.7%
- Legs flown under this number10
according to the US BTS · Oct 12, 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 | 36 | 4 | ▼ 88.9% |
| February | 28 | 34 | ▲ 21.4% |
| March | 28 | 62 | ▲ 121.4% |
| April | 26 | 60 | ▲ 130.8% |
| May | 18 | 12 | ▼ 33.3% |
| June | 27 | 42 | ▲ 55.6% |
| July | 30 | 54 | ▲ 80.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 193 | 268 | ▲ 38.9% |
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 | 80.6% | 75.0% | ▼ 6.9% |
| February | 64.3% | 91.2% | ▲ 41.8% |
| March | 85.7% | 86.7% | ▲ 1.1% |
| April | 84.6% | 90.0% | ▲ 6.4% |
| May | 88.9% | 100.0% | ▲ 12.5% |
| June | 66.7% | 59.5% | ▼ 10.7% |
| July | 53.3% | 74.1% | ▲ 38.9% |
| August | 71.0% | – | – |
| September | 93.3% | – | – |
| October | 83.9% | – | in progress |
| November | 72.4% | – | – |
| December | 76.7% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 82.3% | ▲ 10.0% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 99.3% 697
- Cancelled 0.7% 5
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| CLT DTW Charlotte Douglas International Airport – Detroit Metropolitan Wayne County Airport | 806 | 12.9 min | 76.5% | 323 |
| MSY MSP Louis Armstrong New Orleans International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,676 | 1.5 min | 87.9% | 60 |
| MSP MSY Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Louis Armstrong New Orleans International Airport | 1,676 | -1.4 min | 94.8% | 60 |
| MSP TUS Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Tucson International Airport | 2,087 | 10.7 min | 80.4% | 57 |
| ORF DTW Norfolk International Airport – Detroit Metropolitan Wayne County Airport | 851 | 28.0 min | 60.4% | 48 |
| DTW ORF Detroit Metropolitan Wayne County Airport – Norfolk International Airport | 851 | 12.5 min | 75.0% | 48 |
| TUS MSP Tucson International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 2,087 | 4.0 min | 82.9% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 87.5% | 0 |
| November 2024 | 31 | 31 | 90.3% | 0 |
| December 2024 | 50 | 50 | 82.0% | 0 |
| January 2025 | 36 | 36 | 80.6% | 0 |
| February 2025 | 28 | 28 | 64.3% | 0 |
| March 2025 | 28 | 28 | 85.7% | 0 |
| April 2025 | 26 | 26 | 84.6% | 0 |
| May 2025 | 18 | 18 | 88.9% | 0 |
| June 2025 | 27 | 27 | 66.7% | 0 |
| July 2025 | 30 | 30 | 53.3% | 0 |
| August 2025 | 31 | 31 | 71.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 29 | 29 | 72.4% | 0 |
| December 2025 | 31 | 30 | 76.7% | 1 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| February 2026 | 34 | 34 | 91.2% | 0 |
| March 2026 | 62 | 60 | 86.7% | 2 |
| April 2026 | 60 | 60 | 90.0% | 0 |
| May 2026 | 12 | 10 | 100.0% | 2 |
| June 2026 | 42 | 42 | 59.5% | 0 |
| July 2026 | 54 | 54 | 74.1% | 0 |