WN4002
WN4002 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Chicago to Norfolk. Of 626 departures recorded from October 2024 to July 2026, 72.9% left on time, according to the US BTS.
- On-time departures72.9%of 626 flights
- Average delay14.3 min
- July 202630▼ 42.3%vs July 2025
- Cancelled1.1%
- Legs flown under this number28
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 | 46 | ▲ 666.7% |
| February | – | 48 | – |
| March | 16 | 35 | ▲ 118.8% |
| April | 30 | 30 | 0.0% |
| May | 35 | 30 | ▼ 14.3% |
| June | 48 | 30 | ▼ 37.5% |
| July | 52 | 30 | ▼ 42.3% |
| August | 30 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 16 | – | – |
| December | 8 | – | – |
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% | 84.1% | ▲ 110.2% |
| February | – | 91.7% | – |
| March | 81.3% | 35.3% | ▼ 56.6% |
| April | 90.0% | 46.7% | ▼ 48.1% |
| May | 77.1% | 33.3% | ▼ 56.8% |
| June | 79.2% | 63.3% | ▼ 20.0% |
| July | 77.6% | 86.7% | ▲ 11.8% |
| August | 76.7% | – | – |
| September | 92.3% | – | – |
| October | 54.8% | – | in progress |
| November | 93.8% | – | – |
| December | 75.0% | – | – |
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 | 2 | ▲ 100.0% |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 3 | 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 98.9% 619
- Cancelled 1.1% 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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 79.0% | 0 |
| November 2024 | 27 | 27 | 85.2% | 0 |
| December 2024 | 33 | 33 | 63.6% | 0 |
| January 2025 | 6 | 5 | 40.0% | 1 |
| March 2025 | 16 | 16 | 81.3% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 35 | 35 | 77.1% | 0 |
| June 2025 | 48 | 48 | 79.2% | 0 |
| July 2025 | 52 | 49 | 77.6% | 3 |
| August 2025 | 30 | 30 | 76.7% | 0 |
| September 2025 | 26 | 26 | 92.3% | 0 |
| October 2025 | 31 | 31 | 54.8% | 0 |
| November 2025 | 16 | 16 | 93.8% | 0 |
| December 2025 | 8 | 8 | 75.0% | 0 |
| January 2026 | 46 | 44 | 84.1% | 2 |
| February 2026 | 48 | 48 | 91.7% | 0 |
| March 2026 | 35 | 34 | 35.3% | 1 |
| April 2026 | 30 | 30 | 46.7% | 0 |
| May 2026 | 30 | 30 | 33.3% | 0 |
| June 2026 | 30 | 30 | 63.3% | 0 |
| July 2026 | 30 | 30 | 86.7% | 0 |