WN4087
WN4087 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Dallas to Atlanta. Of 438 departures recorded from October 2024 to July 2026, 75.2% left on time, according to the US BTS.
- On-time departures75.2%of 438 flights
- Average delay13.3 min
- July 202626▼ 16.1%vs July 2025
- Cancelled0.7%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 35 | ▲ 12.9% |
| February | 25 | 34 | ▲ 36.0% |
| March | 31 | 16 | ▼ 48.4% |
| April | 7 | 2 | ▼ 71.4% |
| May | 1 | 1 | 0.0% |
| June | 26 | 23 | ▼ 11.5% |
| July | 31 | 26 | ▼ 16.1% |
| August | 4 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 152 | 137 | ▼ 9.9% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 73.3% | 85.7% | ▲ 16.9% |
| February | 76.0% | 81.8% | ▲ 7.7% |
| March | 80.7% | 93.8% | ▲ 16.2% |
| April | 71.4% | 100.0% | ▲ 40.0% |
| May | 100.0% | 100.0% | 0.0% |
| June | 96.2% | 30.4% | ▼ 68.4% |
| July | 93.6% | 30.8% | ▼ 67.1% |
| August | 75.0% | – | – |
| September | – | – | – |
| October | 73.3% | – | in progress |
| November | 89.7% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 84.4% | 74.6% | ▼ 11.6% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.3% 435
- Cancelled 0.7% 3
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL ATL Dallas Love Field – Hartsfield Jackson Atlanta International Airport | 1,158 | 15.8 min | 69.2% | 80 |
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | 0.1 min | 93.4% | 61 |
| PHX MDW Phoenix Sky Harbor International Airport – Chicago Midway International Airport | 2,319 | 14.4 min | 78.0% | 59 |
| PHX OMA Phoenix Sky Harbor International Airport – Eppley Airfield | 1,667 | 4.5 min | 84.0% | 50 |
| PHX OKC Phoenix Sky Harbor International Airport – OKC Will Rogers World Airport | 1,338 | 45.4 min | 30.6% | 49 |
| MKE BNA General Mitchell International Airport – Nashville International Airport | 766 | 7.3 min | 81.8% | 33 |
| ONT DEN Ontario International Airport – Denver International Airport | 1,316 | 16.9 min | 74.2% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 23 | 22 | 54.6% | 1 |
| December 2024 | 18 | 18 | 77.8% | 0 |
| January 2025 | 31 | 30 | 73.3% | 1 |
| February 2025 | 25 | 25 | 76.0% | 0 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 7 | 7 | 71.4% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 26 | 26 | 96.2% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 30 | 30 | 73.3% | 0 |
| November 2025 | 29 | 29 | 89.7% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 35 | 35 | 85.7% | 0 |
| February 2026 | 34 | 33 | 81.8% | 1 |
| March 2026 | 16 | 16 | 93.8% | 0 |
| April 2026 | 2 | 2 | 100.0% | 0 |
| May 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 23 | 23 | 30.4% | 0 |
| July 2026 | 26 | 26 | 30.8% | 0 |