DL1238
DL1238 (Delta Air Lines) is a multi-stop service on 7 routes, busiest Salt Lake City to Portland. Of 805 departures recorded from October 2024 to July 2026, 89.2% left on time, according to the US BTS.
- On-time departures89.2%of 805 flights
- Average delay4.4 min
- July 202648▲ 108.7%vs July 2025
- Cancelled2.4%
- Legs flown under this number7
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 | 34 | 27 | ▼ 20.6% |
| February | 28 | 13 | ▼ 53.6% |
| March | 48 | 43 | ▼ 10.4% |
| April | 52 | 52 | 0.0% |
| May | 52 | 50 | ▼ 3.8% |
| June | 32 | 46 | ▲ 43.8% |
| July | 23 | 48 | ▲ 108.7% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 29 | – | – |
| December | 37 | – | – |
| Year to date (Jan–Jul) | 269 | 279 | ▲ 3.7% |
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 | 87.5% | 76.9% | ▼ 12.1% |
| February | 89.3% | 69.2% | ▼ 22.5% |
| March | 91.7% | 89.7% | ▼ 2.1% |
| April | 82.7% | 98.1% | ▲ 18.6% |
| May | 94.2% | 89.6% | ▼ 4.9% |
| June | 96.9% | 84.1% | ▼ 13.2% |
| July | 95.7% | 79.6% | ▼ 16.8% |
| August | 96.6% | – | – |
| September | 90.0% | – | – |
| October | 96.7% | – | in progress |
| November | 96.6% | – | – |
| December | 81.8% | – | – |
| Year-to-date average (Jan–Jul) | 91.1% | 83.9% | ▼ 8.0% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 2 | – |
| July | 0 | 4 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 4 | – | – |
| Year to date (Jan–Jul) | 2 | 13 | ▲ 550.0% |
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 97.6% 786
- Cancelled 2.4% 19
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SLC PDX Salt Lake City International Airport – Portland International Airport | 1,012 | 6.9 min | 85.1% | 270 |
| PDX SLC Portland International Airport – Salt Lake City International Airport | 1,012 | 5.6 min | 90.2% | 254 |
| BOS MSP Boston Logan International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,804 | -1.0 min | 95.0% | 179 |
| RSW ATL Southwest Florida International Airport – Hartsfield Jackson Atlanta International Airport | 831 | -0.3 min | 93.3% | 62 |
| CHA ATL Chattanooga Metropolitan Airport (Lovell Field) – Hartsfield Jackson Atlanta International Airport | 171 | 10.0 min | 79.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 36 | 36 | 94.4% | 0 |
| December 2024 | 54 | 54 | 83.3% | 0 |
| January 2025 | 34 | 32 | 87.5% | 2 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 48 | 48 | 91.7% | 0 |
| April 2025 | 52 | 52 | 82.7% | 0 |
| May 2025 | 52 | 52 | 94.2% | 0 |
| June 2025 | 32 | 32 | 96.9% | 0 |
| July 2025 | 23 | 23 | 95.7% | 0 |
| August 2025 | 29 | 29 | 96.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 30 | 30 | 96.7% | 0 |
| November 2025 | 29 | 29 | 96.6% | 0 |
| December 2025 | 37 | 33 | 81.8% | 4 |
| January 2026 | 27 | 26 | 76.9% | 1 |
| February 2026 | 13 | 13 | 69.2% | 0 |
| March 2026 | 43 | 39 | 89.7% | 4 |
| April 2026 | 52 | 52 | 98.1% | 0 |
| May 2026 | 50 | 48 | 89.6% | 2 |
| June 2026 | 46 | 44 | 84.1% | 2 |
| July 2026 | 48 | 44 | 79.6% | 4 |