DL1131
DL1131 (Delta Air Lines) is a multi-stop service on 7 routes, busiest Atlanta to Houston. Of 651 departures recorded from October 2024 to July 2026, 72.4% left on time, according to the US BTS.
- On-time departures72.4%of 651 flights
- Average delay18.3 min
- July 202631▲ 3.3%vs July 2025
- Cancelled1.5%
- 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 | 33 | 35 | ▲ 6.1% |
| February | 24 | 26 | ▲ 8.3% |
| March | 34 | 55 | ▲ 61.8% |
| April | 32 | 42 | ▲ 31.3% |
| May | 34 | 31 | ▼ 8.8% |
| June | 22 | 30 | ▲ 36.4% |
| July | 30 | 31 | ▲ 3.3% |
| August | 20 | – | – |
| September | 12 | – | – |
| October | 17 | – | in progress |
| November | 3 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 209 | 250 | ▲ 19.6% |
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 | 75.8% | 78.8% | ▲ 4.0% |
| February | 75.0% | 79.2% | ▲ 5.6% |
| March | 64.7% | 66.7% | ▲ 3.0% |
| April | 71.9% | 73.8% | ▲ 2.7% |
| May | 48.5% | 67.7% | ▲ 39.7% |
| June | 63.6% | 63.3% | ▼ 0.5% |
| July | 51.7% | 51.6% | ▼ 0.2% |
| August | 60.0% | – | – |
| September | 91.7% | – | – |
| October | 82.4% | – | in progress |
| November | 66.7% | – | – |
| December | 96.2% | – | – |
| Year-to-date average (Jan–Jul) | 64.5% | 68.7% | ▲ 6.6% |
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 | 2 | – |
| February | 0 | 2 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 8 | ▲ 300.0% |
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 98.5% 641
- Cancelled 1.5% 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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL IAH Hartsfield Jackson Atlanta International Airport – George Bush Intercontinental Airport | 1,108 | 21.2 min | 68.9% | 314 |
| IAH ATL George Bush Intercontinental Airport – Hartsfield Jackson Atlanta International Airport | 1,108 | 21.8 min | 67.4% | 151 |
| SFO JFK San Francisco International Airport – John F. Kennedy International Airport | 4,152 | 2.2 min | 84.2% | 60 |
| DTW LGA Detroit Metropolitan Wayne County Airport – LaGuardia Airport | 805 | 22.9 min | 71.7% | 53 |
| SLC MCO Salt Lake City International Airport – Orlando International Airport | 3,103 | 2.1 min | 97.0% | 34 |
| MCO SLC Orlando International Airport – Salt Lake City International Airport | 3,103 | 14.6 min | 82.4% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 32 | 32 | 84.4% | 0 |
| November 2024 | 36 | 36 | 91.7% | 0 |
| December 2024 | 46 | 46 | 89.1% | 0 |
| January 2025 | 33 | 33 | 75.8% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 34 | 34 | 64.7% | 0 |
| April 2025 | 32 | 32 | 71.9% | 0 |
| May 2025 | 34 | 33 | 48.5% | 1 |
| June 2025 | 22 | 22 | 63.6% | 0 |
| July 2025 | 30 | 29 | 51.7% | 1 |
| August 2025 | 20 | 20 | 60.0% | 0 |
| September 2025 | 12 | 12 | 91.7% | 0 |
| October 2025 | 17 | 17 | 82.4% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 26 | 26 | 96.2% | 0 |
| January 2026 | 35 | 33 | 78.8% | 2 |
| February 2026 | 26 | 24 | 79.2% | 2 |
| March 2026 | 55 | 51 | 66.7% | 4 |
| April 2026 | 42 | 42 | 73.8% | 0 |
| May 2026 | 31 | 31 | 67.7% | 0 |
| June 2026 | 30 | 30 | 63.3% | 0 |
| July 2026 | 31 | 31 | 51.6% | 0 |