WN3621
WN3621 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Jackson to Houston. Of 394 departures recorded from October 2024 to July 2026, 67.2% left on time, according to the US BTS.
- On-time departures67.2%of 394 flights
- Average delay16.9 min
- July 20267▼ 66.7%vs July 2025
- Cancelled1.0%
- Legs flown under this number25
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 | – | 6 | – |
| February | 2 | 4 | ▲ 100.0% |
| March | 17 | 39 | ▲ 129.4% |
| April | 10 | 60 | ▲ 500.0% |
| May | 9 | 67 | ▲ 644.4% |
| June | 21 | 10 | ▼ 52.4% |
| July | 21 | 7 | ▼ 66.7% |
| August | 8 | – | – |
| September | 4 | – | – |
| October | 30 | – | in progress |
| November | 25 | – | – |
| December | 20 | – | – |
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 | – | 40.0% | – |
| February | 100.0% | 100.0% | 0.0% |
| March | 82.4% | 69.2% | ▼ 15.9% |
| April | 100.0% | 61.7% | ▼ 38.3% |
| May | 55.6% | 44.8% | ▼ 19.4% |
| June | 50.0% | 33.3% | ▼ 33.3% |
| July | 60.0% | 28.6% | ▼ 52.4% |
| August | 75.0% | – | – |
| September | 100.0% | – | – |
| October | 76.7% | – | in progress |
| November | 80.0% | – | – |
| December | 95.0% | – | – |
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 | – | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| 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 99.0% 390
- Cancelled 1.0% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JAN HOU Jackson-Medgar Wiley Evers International Airport – William P. Hobby Airport | 578 | 18.1 min | 56.9% | 58 |
| BNA JAN Nashville International Airport – Jackson-Medgar Wiley Evers International Airport | 527 | 27.6 min | 39.7% | 58 |
| OKC LAS OKC Will Rogers World Airport – Harry Reid International Airport | 1,584 | 6.5 min | 82.2% | 45 |
| MCI DAL Kansas City International Airport – Dallas Love Field | 743 | 32.8 min | 54.8% | 44 |
| PHX MSY Phoenix Sky Harbor International Airport – Louis Armstrong New Orleans International Airport | 2,088 | 10.3 min | 66.7% | 33 |
| MCO MKE Orlando International Airport – General Mitchell International Airport | 1,719 | 12.4 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 30 | 30 | 96.7% | 0 |
| November 2024 | 3 | 3 | 66.7% | 0 |
| December 2024 | 1 | 1 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 17 | 17 | 82.4% | 0 |
| April 2025 | 10 | 10 | 100.0% | 0 |
| May 2025 | 9 | 9 | 55.6% | 0 |
| June 2025 | 21 | 20 | 50.0% | 1 |
| July 2025 | 21 | 20 | 60.0% | 1 |
| August 2025 | 8 | 8 | 75.0% | 0 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 30 | 30 | 76.7% | 0 |
| November 2025 | 25 | 25 | 80.0% | 0 |
| December 2025 | 20 | 20 | 95.0% | 0 |
| January 2026 | 6 | 5 | 40.0% | 1 |
| February 2026 | 4 | 4 | 100.0% | 0 |
| March 2026 | 39 | 39 | 69.2% | 0 |
| April 2026 | 60 | 60 | 61.7% | 0 |
| May 2026 | 67 | 67 | 44.8% | 0 |
| June 2026 | 10 | 9 | 33.3% | 1 |
| July 2026 | 7 | 7 | 28.6% | 0 |