DL1648
DL1648 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Denver. Of 1,023 departures recorded from October 2024 to July 2026, 83.5% left on time, according to the US BTS.
- On-time departures83.5%of 1,023 flights
- Average delay8.0 min
- July 202662▲ 0.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number2
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 | 62 | 35 | ▼ 43.5% |
| February | 56 | 28 | ▼ 50.0% |
| March | 39 | 55 | ▲ 41.0% |
| April | 30 | 42 | ▲ 40.0% |
| May | 31 | 31 | 0.0% |
| June | 53 | 54 | ▲ 1.9% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 57 | – | – |
| October | 57 | – | in progress |
| November | 54 | – | – |
| December | 60 | – | – |
| Year to date (Jan–Jul) | 333 | 307 | ▼ 7.8% |
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 | 77.4% | 88.6% | ▲ 14.4% |
| February | 92.9% | 89.3% | ▼ 3.8% |
| March | 92.3% | 70.9% | ▼ 23.2% |
| April | 83.3% | 97.6% | ▲ 17.1% |
| May | 80.7% | 83.9% | ▲ 4.0% |
| June | 69.8% | 79.6% | ▲ 14.1% |
| July | 85.0% | 71.0% | ▼ 16.5% |
| August | 87.1% | – | – |
| September | 87.7% | – | – |
| October | 96.5% | – | in progress |
| November | 80.8% | – | – |
| December | 71.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.1% | 83.0% | ▼ 0.1% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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 99.6% 1,019
- Cancelled 0.4% 4
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 |
|---|---|---|---|---|
| DTW DEN Detroit Metropolitan Wayne County Airport – Denver International Airport | 1,802 | 6.2 min | 85.6% | 656 |
| DEN DTW Denver International Airport – Detroit Metropolitan Wayne County Airport | 1,802 | 11.1 min | 79.7% | 367 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 44 | 44 | 90.9% | 0 |
| January 2025 | 62 | 62 | 77.4% | 0 |
| February 2025 | 56 | 56 | 92.9% | 0 |
| March 2025 | 39 | 39 | 92.3% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 53 | 53 | 69.8% | 0 |
| July 2025 | 62 | 60 | 85.0% | 2 |
| August 2025 | 62 | 62 | 87.1% | 0 |
| September 2025 | 57 | 57 | 87.7% | 0 |
| October 2025 | 57 | 57 | 96.5% | 0 |
| November 2025 | 54 | 52 | 80.8% | 2 |
| December 2025 | 60 | 60 | 71.7% | 0 |
| January 2026 | 35 | 35 | 88.6% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 55 | 55 | 70.9% | 0 |
| April 2026 | 42 | 42 | 97.6% | 0 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 54 | 54 | 79.6% | 0 |
| July 2026 | 62 | 62 | 71.0% | 0 |