DL396
DL396 (Delta Air Lines) is a multi-stop service on 20 routes, busiest Denver to Atlanta. Of 549 departures recorded from October 2024 to July 2026, 75.9% left on time, according to the US BTS.
- On-time departures75.9%of 549 flights
- Average delay14.0 min
- July 202629▲ 262.5%vs July 2025
- Cancelled1.1%
- Legs flown under this number20
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 | 62 | 38 | ▼ 38.7% |
| February | 56 | – | – |
| March | 16 | 27 | ▲ 68.8% |
| April | 5 | 26 | ▲ 420.0% |
| May | 51 | 29 | ▼ 43.1% |
| June | 19 | 27 | ▲ 42.1% |
| July | 8 | 29 | ▲ 262.5% |
| August | 7 | – | – |
| September | 21 | – | – |
| October | 5 | – | in progress |
| November | 21 | – | – |
| December | 25 | – | – |
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 | 81.7% | 89.5% | ▲ 9.6% |
| February | 69.6% | – | – |
| March | 81.3% | 88.0% | ▲ 8.3% |
| April | 80.0% | 76.9% | ▼ 3.8% |
| May | 64.7% | 72.4% | ▲ 11.9% |
| June | 100.0% | 44.4% | ▼ 55.6% |
| July | 100.0% | 55.2% | ▼ 44.8% |
| August | 71.4% | – | – |
| September | 90.5% | – | – |
| October | 80.0% | – | in progress |
| November | 85.7% | – | – |
| December | 78.3% | – | – |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
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 98.9% 543
- Cancelled 1.1% 6
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 |
|---|---|---|---|---|
| DEN ATL Denver International Airport – Hartsfield Jackson Atlanta International Airport | 1,927 | 13.9 min | 73.8% | 147 |
| ATL DEN Hartsfield Jackson Atlanta International Airport – Denver International Airport | 1,927 | 13.0 min | 79.8% | 96 |
| SFO JFK San Francisco International Airport – John F. Kennedy International Airport | 4,152 | 30.3 min | 43.8% | 48 |
| AUS SEA Austin Bergstrom International Airport – Seattle–Tacoma International Airport | 2,848 | 1.6 min | 88.6% | 36 |
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | 24.2 min | 68.8% | 32 |
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | 20.5 min | 75.0% | 32 |
| IAH JFK George Bush Intercontinental Airport – John F. Kennedy International Airport | 2,278 | 8.9 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 85.7% | 0 |
| November 2024 | 19 | 19 | 94.7% | 0 |
| December 2024 | 44 | 44 | 63.6% | 0 |
| January 2025 | 62 | 60 | 81.7% | 2 |
| February 2025 | 56 | 56 | 69.6% | 0 |
| March 2025 | 16 | 16 | 81.3% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| May 2025 | 51 | 51 | 64.7% | 0 |
| June 2025 | 19 | 19 | 100.0% | 0 |
| July 2025 | 8 | 8 | 100.0% | 0 |
| August 2025 | 7 | 7 | 71.4% | 0 |
| September 2025 | 21 | 21 | 90.5% | 0 |
| October 2025 | 5 | 5 | 80.0% | 0 |
| November 2025 | 21 | 21 | 85.7% | 0 |
| December 2025 | 25 | 23 | 78.3% | 2 |
| January 2026 | 38 | 38 | 89.5% | 0 |
| March 2026 | 27 | 25 | 88.0% | 2 |
| April 2026 | 26 | 26 | 76.9% | 0 |
| May 2026 | 29 | 29 | 72.4% | 0 |
| June 2026 | 27 | 27 | 44.4% | 0 |
| July 2026 | 29 | 29 | 55.2% | 0 |