WN2231
WN2231 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Dallas to St Louis. Of 673 departures recorded from October 2024 to July 2026, 76.6% left on time, according to the US BTS.
- On-time departures76.6%of 673 flights
- Average delay12.8 min
- July 202621▼ 32.3%vs July 2025
- Cancelled1.0%
- Legs flown under this number35
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 | 31 | 33 | ▲ 6.5% |
| February | 30 | 35 | ▲ 16.7% |
| March | 36 | 32 | ▼ 11.1% |
| April | 45 | 27 | ▼ 40.0% |
| May | 48 | 27 | ▼ 43.8% |
| June | 33 | 23 | ▼ 30.3% |
| July | 31 | 21 | ▼ 32.3% |
| August | 8 | – | – |
| September | 4 | – | – |
| October | 34 | – | in progress |
| November | 41 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 254 | 198 | ▼ 22.0% |
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 | 82.8% | 83.9% | ▲ 1.3% |
| February | 90.0% | 85.3% | ▼ 5.2% |
| March | 77.8% | 78.1% | ▲ 0.4% |
| April | 77.8% | 81.5% | ▲ 4.8% |
| May | 78.7% | 59.3% | ▼ 24.7% |
| June | 93.9% | 30.4% | ▼ 67.6% |
| July | 71.0% | 38.1% | ▼ 46.3% |
| August | 75.0% | – | – |
| September | 75.0% | – | – |
| October | 63.6% | – | in progress |
| November | 92.7% | – | – |
| December | 78.7% | – | – |
| Year-to-date average (Jan–Jul) | 81.7% | 65.2% | ▼ 20.2% |
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 | 2 | 2 | 0.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 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 99.0% 666
- Cancelled 1.0% 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 |
|---|---|---|---|---|
| DAL STL Dallas Love Field – St. Louis Lambert International Airport | 878 | 9.8 min | 84.3% | 104 |
| LAX SJC Los Angeles International Airport – Mineta San Jose International Airport | 496 | 8.5 min | 78.7% | 61 |
| BWI BNA Baltimore/Washington International Thurgood Marshall Airport – Nashville International Airport | 944 | 6.6 min | 87.3% | 58 |
| HOU DEN William P. Hobby Airport – Denver International Airport | 1,422 | 23.0 min | 64.0% | 50 |
| ELP PHX El Paso International Airport – Phoenix Sky Harbor International Airport | 557 | 6.2 min | 87.0% | 46 |
| BNA STL Nashville International Airport – St. Louis Lambert International Airport | 437 | 11.9 min | 73.8% | 42 |
| AUS BNA Austin Bergstrom International Airport – Nashville International Airport | 1,215 | 4.7 min | 84.4% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 92.3% | 0 |
| November 2024 | 31 | 31 | 77.4% | 0 |
| December 2024 | 30 | 30 | 66.7% | 0 |
| January 2025 | 31 | 29 | 82.8% | 2 |
| February 2025 | 30 | 30 | 90.0% | 0 |
| March 2025 | 36 | 36 | 77.8% | 0 |
| April 2025 | 45 | 45 | 77.8% | 0 |
| May 2025 | 48 | 47 | 78.7% | 1 |
| June 2025 | 33 | 33 | 93.9% | 0 |
| July 2025 | 31 | 31 | 71.0% | 0 |
| August 2025 | 8 | 8 | 75.0% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 34 | 33 | 63.6% | 1 |
| November 2025 | 41 | 41 | 92.7% | 0 |
| December 2025 | 47 | 47 | 78.7% | 0 |
| January 2026 | 33 | 31 | 83.9% | 2 |
| February 2026 | 35 | 34 | 85.3% | 1 |
| March 2026 | 32 | 32 | 78.1% | 0 |
| April 2026 | 27 | 27 | 81.5% | 0 |
| May 2026 | 27 | 27 | 59.3% | 0 |
| June 2026 | 23 | 23 | 30.4% | 0 |
| July 2026 | 21 | 21 | 38.1% | 0 |