DL346
DL346 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Denver to Atlanta. Of 836 departures recorded from October 2024 to July 2026, 83.4% left on time, according to the US BTS.
- On-time departures83.4%of 836 flights
- Average delay9.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.3%
- 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 | 57 | 31 | ▼ 45.6% |
| February | 56 | 45 | ▼ 19.6% |
| March | 62 | 62 | 0.0% |
| April | 60 | 60 | 0.0% |
| May | 37 | 37 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 26 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 333 | 296 | ▼ 11.1% |
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 | 70.4% | 63.3% | ▼ 10.0% |
| February | 80.4% | 91.1% | ▲ 13.4% |
| March | 82.3% | 90.0% | ▲ 9.4% |
| April | 83.3% | 91.4% | ▲ 9.7% |
| May | 81.1% | 82.9% | ▲ 2.2% |
| June | 76.7% | 80.0% | ▲ 4.3% |
| July | 77.4% | 87.1% | ▲ 12.5% |
| August | 87.1% | – | – |
| September | 93.3% | – | – |
| October | 88.9% | – | in progress |
| November | 76.9% | – | – |
| December | 75.0% | – | – |
| Year-to-date average (Jan–Jul) | 78.8% | 83.7% | ▲ 6.2% |
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 | 3 | 1 | ▼ 66.7% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 2 | – |
| 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) | 3 | 7 | ▲ 133.3% |
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 98.7% 825
- Cancelled 1.3% 11
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 |
|---|---|---|---|---|
| DEN ATL Denver International Airport – Hartsfield Jackson Atlanta International Airport | 1,927 | 13.6 min | 78.2% | 514 |
| ATL DEN Hartsfield Jackson Atlanta International Airport – Denver International Airport | 1,927 | 2.9 min | 91.8% | 322 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 100.0% | 0 |
| November 2024 | 19 | 19 | 94.7% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 57 | 54 | 70.4% | 3 |
| February 2025 | 56 | 56 | 80.4% | 0 |
| March 2025 | 62 | 62 | 82.3% | 0 |
| April 2025 | 60 | 60 | 83.3% | 0 |
| May 2025 | 37 | 37 | 81.1% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 27 | 27 | 88.9% | 0 |
| November 2025 | 26 | 26 | 76.9% | 0 |
| December 2025 | 29 | 28 | 75.0% | 1 |
| January 2026 | 31 | 30 | 63.3% | 1 |
| February 2026 | 45 | 45 | 91.1% | 0 |
| March 2026 | 62 | 60 | 90.0% | 2 |
| April 2026 | 60 | 58 | 91.4% | 2 |
| May 2026 | 37 | 35 | 82.9% | 2 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |