DL339
DL339 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Salt Lake City to Burbank. Of 622 departures recorded from October 2024 to July 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 622 flights
- Average delay13.9 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.3%
- Legs flown under this number3
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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 27 | ▼ 10.0% |
| May | 31 | 30 | ▼ 3.2% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 23 | – | in progress |
| November | 27 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 211 | 208 | ▼ 1.4% |
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 | 76.7% | 87.1% | ▲ 13.6% |
| February | 71.4% | 75.0% | ▲ 5.0% |
| March | 83.9% | 67.7% | ▼ 19.2% |
| April | 79.3% | 88.9% | ▲ 12.1% |
| May | 74.2% | 90.0% | ▲ 21.3% |
| June | 73.3% | 83.3% | ▲ 13.6% |
| July | 66.7% | 80.7% | ▲ 21.0% |
| August | 77.4% | – | – |
| September | 90.0% | – | – |
| October | 78.3% | – | in progress |
| November | 74.1% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 75.1% | 81.8% | ▲ 9.0% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 99.7% 620
- Cancelled 0.3% 2
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 |
|---|---|---|---|---|
| SLC BUR Salt Lake City International Airport – Hollywood Burbank/Bob Hope Airport | 923 | 16.4 min | 77.6% | 398 |
| ATL PHX Hartsfield Jackson Atlanta International Airport – Phoenix Sky Harbor International Airport | 2,549 | 10.8 min | 79.1% | 203 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 23 | 23 | 87.0% | 0 |
| December 2024 | 21 | 21 | 57.1% | 0 |
| January 2025 | 31 | 30 | 76.7% | 1 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 29 | 79.3% | 1 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 30 | 30 | 66.7% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 23 | 23 | 78.3% | 0 |
| November 2025 | 27 | 27 | 74.1% | 0 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 27 | 27 | 88.9% | 0 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |