WN3240
WN3240 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Chicago to Houston. Of 510 departures recorded from October 2024 to July 2026, 79.1% left on time, according to the US BTS.
- On-time departures79.1%of 510 flights
- Average delay9.7 min
- July 202618▼ 40.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number21
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 | 7 | 28 | ▲ 300.0% |
| February | 8 | 28 | ▲ 250.0% |
| March | 27 | 22 | ▼ 18.5% |
| April | 10 | 33 | ▲ 230.0% |
| May | 4 | 34 | ▲ 750.0% |
| June | 26 | 32 | ▲ 23.1% |
| July | 30 | 18 | ▼ 40.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 14 | – | in progress |
| November | 23 | – | – |
| December | 20 | – | – |
| Year to date (Jan–Jul) | 112 | 195 | ▲ 74.1% |
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 | 66.7% | 96.4% | ▲ 44.6% |
| February | 75.0% | 78.6% | ▲ 4.8% |
| March | 73.1% | 68.2% | ▼ 6.7% |
| April | 60.0% | 69.7% | ▲ 16.2% |
| May | 100.0% | 58.8% | ▼ 41.2% |
| June | 61.5% | 87.5% | ▲ 42.2% |
| July | 69.0% | 72.2% | ▲ 4.7% |
| August | 90.3% | – | – |
| September | 90.0% | – | – |
| October | 64.3% | – | in progress |
| November | 95.7% | – | – |
| December | 90.0% | – | – |
| Year-to-date average (Jan–Jul) | 72.2% | 75.9% | ▲ 5.2% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 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) | 3 | 0 | ▼ 100.0% |
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 99.4% 507
- Cancelled 0.6% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| MDW HOU Chicago Midway International Airport – William P. Hobby Airport | 1,510 | 17.4 min | 67.2% | 59 |
| OGG LIH Kahului International Airport – Lihue Airport | 324 | 0.4 min | 89.7% | 58 |
| PHX STL Phoenix Sky Harbor International Airport – St. Louis Lambert International Airport | 2,026 | 4.1 min | 86.2% | 58 |
| EUG DEN Eugene Airport – Denver International Airport | 1,600 | 25.9 min | 58.0% | 50 |
| MCO AUS Orlando International Airport – Austin Bergstrom International Airport | 1,596 | 9.7 min | 82.2% | 45 |
| BNA HOU Nashville International Airport – William P. Hobby Airport | 1,078 | 0.2 min | 93.3% | 45 |
| MCO MSY Orlando International Airport – Louis Armstrong New Orleans International Airport | 886 | 18.2 min | 65.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 76.0% | 0 |
| November 2024 | 22 | 22 | 95.5% | 0 |
| December 2024 | 38 | 38 | 89.5% | 0 |
| January 2025 | 7 | 6 | 66.7% | 1 |
| February 2025 | 8 | 8 | 75.0% | 0 |
| March 2025 | 27 | 26 | 73.1% | 1 |
| April 2025 | 10 | 10 | 60.0% | 0 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 26 | 26 | 61.5% | 0 |
| July 2025 | 30 | 29 | 69.0% | 1 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 14 | 14 | 64.3% | 0 |
| November 2025 | 23 | 23 | 95.7% | 0 |
| December 2025 | 20 | 20 | 90.0% | 0 |
| January 2026 | 28 | 28 | 96.4% | 0 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 22 | 22 | 68.2% | 0 |
| April 2026 | 33 | 33 | 69.7% | 0 |
| May 2026 | 34 | 34 | 58.8% | 0 |
| June 2026 | 32 | 32 | 87.5% | 0 |
| July 2026 | 18 | 18 | 72.2% | 0 |