WN4054
WN4054 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Washington to New Orleans. Of 426 departures recorded from October 2024 to July 2026, 68.0% left on time, according to the US BTS.
- On-time departures68.0%of 426 flights
- Average delay18.7 min
- July 202623
- Cancelled1.6%
- Legs flown under this number21
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 | 27 | 1 | ▼ 96.3% |
| February | 27 | 5 | ▼ 81.5% |
| March | 31 | 23 | ▼ 25.8% |
| April | 30 | 20 | ▼ 33.3% |
| May | 31 | 18 | ▼ 41.9% |
| June | 4 | 21 | ▲ 425.0% |
| July | – | 23 | – |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
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 | 73.9% | 0.0% | ▼ 100.0% |
| February | 51.9% | 75.0% | ▲ 44.6% |
| March | 61.3% | 91.3% | ▲ 49.0% |
| April | 70.0% | 80.0% | ▲ 14.3% |
| May | 30.0% | 61.1% | ▲ 103.7% |
| June | 75.0% | 47.6% | ▼ 36.5% |
| July | – | 65.2% | – |
| August | 69.2% | – | – |
| September | 66.7% | – | – |
| October | 93.3% | – | in progress |
| November | 66.7% | – | – |
| December | 100.0% | – | – |
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 | 4 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 98.4% 419
- Cancelled 1.6% 7
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA MSY Ronald Reagan Washington National Airport – Louis Armstrong New Orleans International Airport | 1,560 | 25.0 min | 62.9% | 93 |
| PHX MDW Phoenix Sky Harbor International Airport – Chicago Midway International Airport | 2,319 | 22.8 min | 68.4% | 58 |
| BOS STL Boston Logan International Airport – St. Louis Lambert International Airport | 1,680 | 29.8 min | 50.0% | 57 |
| TUL DAL Tulsa International Airport – Dallas Love Field | 383 | 29.3 min | 54.8% | 42 |
| OAK LAX Oakland San Francisco Bay Airport – Los Angeles International Airport | 543 | 10.8 min | 67.7% | 34 |
| ATL LAS Hartsfield Jackson Atlanta International Airport – Harry Reid International Airport | 2,805 | 18.9 min | 60.6% | 33 |
| ATL DEN Hartsfield Jackson Atlanta International Airport – Denver International Airport | 1,927 | 4.9 min | 90.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 25 | 25 | 72.0% | 0 |
| December 2024 | 28 | 28 | 67.9% | 0 |
| January 2025 | 27 | 23 | 73.9% | 4 |
| February 2025 | 27 | 27 | 51.9% | 0 |
| March 2025 | 31 | 31 | 61.3% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 31 | 30 | 30.0% | 1 |
| June 2025 | 4 | 4 | 75.0% | 0 |
| August 2025 | 27 | 26 | 69.2% | 1 |
| September 2025 | 30 | 30 | 66.7% | 0 |
| October 2025 | 30 | 30 | 93.3% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 1 | 1 | 0.0% | 0 |
| February 2026 | 5 | 4 | 75.0% | 1 |
| March 2026 | 23 | 23 | 91.3% | 0 |
| April 2026 | 20 | 20 | 80.0% | 0 |
| May 2026 | 18 | 18 | 61.1% | 0 |
| June 2026 | 21 | 21 | 47.6% | 0 |
| July 2026 | 23 | 23 | 65.2% | 0 |