WN2004
WN2004 (Southwest Airlines) is a multi-stop service on 28 routes, busiest St Louis to Nashville. Of 751 departures recorded from October 2024 to July 2026, 67.1% left on time, according to the US BTS.
- On-time departures67.1%of 751 flights
- Average delay19.0 min
- July 20265▼ 89.8%vs July 2025
- Cancelled0.9%
- Legs flown under this number28
according to the US BTS · Oct 12, 2024 → Jul 25, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 30 | ▼ 3.2% |
| February | 20 | 28 | ▲ 40.0% |
| March | 30 | 27 | ▼ 10.0% |
| April | 39 | 55 | ▲ 41.0% |
| May | 44 | 64 | ▲ 45.5% |
| June | 45 | 9 | ▼ 80.0% |
| July | 49 | 5 | ▼ 89.8% |
| August | 59 | – | – |
| September | 60 | – | – |
| October | 23 | – | in progress |
| November | 26 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 258 | 218 | ▼ 15.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 92.6% | 93.3% | ▲ 0.8% |
| February | 84.2% | 89.3% | ▲ 6.0% |
| March | 70.0% | 85.2% | ▲ 21.7% |
| April | 84.6% | 29.6% | ▼ 65.0% |
| May | 84.1% | 26.6% | ▼ 68.4% |
| June | 55.6% | 44.4% | ▼ 20.0% |
| July | 57.1% | 40.0% | ▼ 30.0% |
| August | 79.7% | – | – |
| September | 50.9% | – | – |
| October | 39.1% | – | in progress |
| November | 92.3% | – | – |
| December | 74.1% | – | – |
| Year-to-date average (Jan–Jul) | 75.5% | 58.3% | ▼ 22.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.1% 744
- Cancelled 0.9% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL BNA St. Louis Lambert International Airport – Nashville International Airport | 437 | 5.5 min | 84.3% | 113 |
| ABQ LAS Albuquerque International Sunport – Harry Reid International Airport | 781 | 7.2 min | 86.0% | 57 |
| TPA CMH Tampa International Airport – John Glenn Columbus International Airport | 1,337 | 11.5 min | 83.6% | 55 |
| DAL LBB Dallas Love Field – Lubbock Preston Smith International Airport | 472 | 20.0 min | 54.9% | 51 |
| LAS DAL Harry Reid International Airport – Dallas Love Field | 1,714 | 64.4 min | 24.5% | 49 |
| SAN DAL San Diego International Airport – Dallas Love Field | 1,899 | 22.5 min | 61.9% | 42 |
| HOU PHX William P. Hobby Airport – Phoenix Sky Harbor International Airport | 1,638 | 9.6 min | 66.7% | 33 |
| PHX SAN Phoenix Sky Harbor International Airport – San Diego International Airport | 489 | 13.9 min | 64.5% | 32 |
| IND MCO Indianapolis International Airport – Orlando International Airport | 1,336 | 9.2 min | 80.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 30 | 30 | 76.7% | 0 |
| January 2025 | 31 | 27 | 92.6% | 4 |
| February 2025 | 20 | 19 | 84.2% | 1 |
| March 2025 | 30 | 30 | 70.0% | 0 |
| April 2025 | 39 | 39 | 84.6% | 0 |
| May 2025 | 44 | 44 | 84.1% | 0 |
| June 2025 | 45 | 45 | 55.6% | 0 |
| July 2025 | 49 | 49 | 57.1% | 0 |
| August 2025 | 59 | 59 | 79.7% | 0 |
| September 2025 | 60 | 59 | 50.9% | 1 |
| October 2025 | 23 | 23 | 39.1% | 0 |
| November 2025 | 26 | 26 | 92.3% | 0 |
| December 2025 | 27 | 27 | 74.1% | 0 |
| January 2026 | 30 | 30 | 93.3% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 27 | 27 | 85.2% | 0 |
| April 2026 | 55 | 54 | 29.6% | 1 |
| May 2026 | 64 | 64 | 26.6% | 0 |
| June 2026 | 9 | 9 | 44.4% | 0 |
| July 2026 | 5 | 5 | 40.0% | 0 |