DL751
DL751 (Delta Air Lines) is a multi-stop service on 2 routes, busiest New York to Denver. Of 1,242 departures recorded from October 2024 to July 2026, 86.7% left on time, according to the US BTS.
- On-time departures86.7%of 1,242 flights
- Average delay8.6 min
- July 202661▼ 1.6%vs July 2025
- Cancelled2.9%
- 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 | 61 | 62 | ▲ 1.6% |
| February | 56 | 56 | 0.0% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 61 | 62 | ▲ 1.6% |
| June | 60 | 60 | 0.0% |
| July | 62 | 61 | ▼ 1.6% |
| August | 61 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 58 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 422 | 423 | ▲ 0.2% |
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 | 82.0% | 91.7% | ▲ 11.8% |
| February | 66.1% | 84.0% | ▲ 27.1% |
| March | 80.7% | 81.8% | ▲ 1.5% |
| April | 83.3% | 93.3% | ▲ 12.0% |
| May | 88.5% | 85.5% | ▼ 3.4% |
| June | 91.2% | 88.1% | ▼ 3.4% |
| July | 91.8% | 88.7% | ▼ 3.4% |
| August | 86.0% | – | – |
| September | 91.7% | – | – |
| October | 91.9% | – | in progress |
| November | 86.0% | – | – |
| December | 86.4% | – | – |
| Year-to-date average (Jan–Jul) | 83.4% | 87.6% | ▲ 5.1% |
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 | 2 | – |
| February | 0 | 6 | – |
| March | 0 | 7 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 3 | 1 | ▼ 66.7% |
| July | 1 | 8 | ▲ 700.0% |
| August | 4 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 4 | 24 | ▲ 500.0% |
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% 1,206
- Cancelled 2.9% 36
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 |
|---|---|---|---|---|
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 2.5 min | 92.5% | 655 |
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 15.4 min | 80.1% | 587 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 44 | 44 | 86.4% | 0 |
| January 2025 | 61 | 61 | 82.0% | 0 |
| February 2025 | 56 | 56 | 66.1% | 0 |
| March 2025 | 62 | 62 | 80.7% | 0 |
| April 2025 | 60 | 60 | 83.3% | 0 |
| May 2025 | 61 | 61 | 88.5% | 0 |
| June 2025 | 60 | 57 | 91.2% | 3 |
| July 2025 | 62 | 61 | 91.8% | 1 |
| August 2025 | 61 | 57 | 86.0% | 4 |
| September 2025 | 60 | 60 | 91.7% | 0 |
| October 2025 | 62 | 62 | 91.9% | 0 |
| November 2025 | 58 | 57 | 86.0% | 1 |
| December 2025 | 62 | 59 | 86.4% | 3 |
| January 2026 | 62 | 60 | 91.7% | 2 |
| February 2026 | 56 | 50 | 84.0% | 6 |
| March 2026 | 62 | 55 | 81.8% | 7 |
| April 2026 | 60 | 60 | 93.3% | 0 |
| May 2026 | 62 | 62 | 85.5% | 0 |
| June 2026 | 60 | 59 | 88.1% | 1 |
| July 2026 | 61 | 53 | 88.7% | 8 |