DL1744
DL1744 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Salt Lake City to Boise. Of 928 departures recorded from October 2024 to July 2026, 90.2% left on time, according to the US BTS.
- On-time departures90.2%of 928 flights
- Average delay0.2 min
- July 202626▼ 16.1%vs July 2025
- Cancelled1.1%
- Legs flown under this number3
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 52 | – |
| February | – | 50 | – |
| March | 46 | 56 | ▲ 21.7% |
| April | 43 | 56 | ▲ 30.2% |
| May | 56 | 54 | ▼ 3.6% |
| June | 37 | 31 | ▼ 16.2% |
| July | 31 | 26 | ▼ 16.1% |
| August | 46 | – | – |
| September | 48 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 38 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 81.3% | – |
| February | – | 94.0% | – |
| March | 91.3% | 92.9% | ▲ 1.7% |
| April | 90.7% | 87.5% | ▼ 3.5% |
| May | 96.4% | 98.2% | ▲ 1.8% |
| June | 86.1% | 90.0% | ▲ 4.5% |
| July | 80.7% | 92.3% | ▲ 14.5% |
| August | 80.4% | – | – |
| September | 87.5% | – | – |
| October | 90.3% | – | in progress |
| November | 92.9% | – | – |
| December | 94.7% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 4 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 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 98.9% 918
- Cancelled 1.1% 10
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 BOI Salt Lake City International Airport – Boise Air Terminal/Gowen Field | 466 | 1.2 min | 88.0% | 507 |
| BOI SLC Boise Air Terminal/Gowen Field – Salt Lake City International Airport | 466 | -1.3 min | 93.0% | 419 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 97.5% | 0 |
| November 2024 | 60 | 60 | 85.0% | 0 |
| December 2024 | 36 | 36 | 91.7% | 0 |
| March 2025 | 46 | 46 | 91.3% | 0 |
| April 2025 | 43 | 43 | 90.7% | 0 |
| May 2025 | 56 | 56 | 96.4% | 0 |
| June 2025 | 37 | 36 | 86.1% | 1 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 46 | 46 | 80.4% | 0 |
| September 2025 | 48 | 48 | 87.5% | 0 |
| October 2025 | 62 | 62 | 90.3% | 0 |
| November 2025 | 60 | 56 | 92.9% | 4 |
| December 2025 | 38 | 38 | 94.7% | 0 |
| January 2026 | 52 | 48 | 81.3% | 4 |
| February 2026 | 50 | 50 | 94.0% | 0 |
| March 2026 | 56 | 56 | 92.9% | 0 |
| April 2026 | 56 | 56 | 87.5% | 0 |
| May 2026 | 54 | 54 | 98.2% | 0 |
| June 2026 | 31 | 30 | 90.0% | 1 |
| July 2026 | 26 | 26 | 92.3% | 0 |