DL1532
DL1532 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Houston to Salt Lake City. Of 586 departures recorded from October 2024 to July 2026, 82.0% left on time, according to the US BTS.
- On-time departures82.0%of 586 flights
- Average delay8.1 min
- July 202630▼ 3.2%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 | 19 | 31 | ▲ 63.2% |
| February | 18 | 28 | ▲ 55.6% |
| March | 29 | 28 | ▼ 3.4% |
| April | 28 | 26 | ▼ 7.1% |
| May | 30 | 25 | ▼ 16.7% |
| June | 30 | 30 | 0.0% |
| July | 31 | 30 | ▼ 3.2% |
| August | 26 | – | – |
| September | 21 | – | – |
| October | 27 | – | in progress |
| November | 24 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 185 | 198 | ▲ 7.0% |
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 | 89.5% | 93.3% | ▲ 4.3% |
| February | 77.8% | 92.9% | ▲ 19.4% |
| March | 86.2% | 82.1% | ▼ 4.7% |
| April | 78.6% | 92.3% | ▲ 17.5% |
| May | 83.3% | 52.0% | ▼ 37.6% |
| June | 86.7% | 86.7% | 0.0% |
| July | 87.1% | 66.7% | ▼ 23.5% |
| August | 88.5% | – | – |
| September | 100.0% | – | – |
| October | 85.2% | – | in progress |
| November | 79.2% | – | – |
| December | 63.3% | – | – |
| Year-to-date average (Jan–Jul) | 84.2% | 80.9% | ▼ 3.9% |
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 | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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% 584
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH SLC George Bush Intercontinental Airport – Salt Lake City International Airport | 1,923 | 7.6 min | 82.3% | 579 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 75.0% | 0 |
| November 2024 | 27 | 27 | 85.2% | 0 |
| December 2024 | 31 | 31 | 74.2% | 0 |
| January 2025 | 19 | 19 | 89.5% | 0 |
| February 2025 | 18 | 18 | 77.8% | 0 |
| March 2025 | 29 | 29 | 86.2% | 0 |
| April 2025 | 28 | 28 | 78.6% | 0 |
| May 2025 | 30 | 30 | 83.3% | 0 |
| June 2025 | 30 | 30 | 86.7% | 0 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 26 | 26 | 88.5% | 0 |
| September 2025 | 21 | 21 | 100.0% | 0 |
| October 2025 | 27 | 27 | 85.2% | 0 |
| November 2025 | 24 | 24 | 79.2% | 0 |
| December 2025 | 31 | 30 | 63.3% | 1 |
| January 2026 | 31 | 30 | 93.3% | 1 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 28 | 28 | 82.1% | 0 |
| April 2026 | 26 | 26 | 92.3% | 0 |
| May 2026 | 25 | 25 | 52.0% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 30 | 30 | 66.7% | 0 |