WN4904
WN4904 (Southwest Airlines) is a multi-stop service on 8 routes, busiest Tampa to Pittsburgh. Of 241 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 241 flights
- Average delay10.9 min
- July 202630
- Cancelled0.8%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 33 | 26 | ▼ 21.2% |
| February | 27 | 28 | ▲ 3.7% |
| March | 5 | 4 | ▼ 20.0% |
| April | – | 3 | – |
| May | – | 4 | – |
| June | – | 27 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.6% | 96.0% | ▲ 58.4% |
| February | 85.2% | 96.3% | ▲ 13.0% |
| March | 60.0% | 100.0% | ▲ 66.7% |
| April | – | 66.7% | – |
| May | – | 100.0% | – |
| June | – | 81.5% | – |
| July | – | 76.7% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0.0% | – | – |
| December | – | – | – |
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 periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 99.2% 239
- Cancelled 0.8% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA PIT Tampa International Airport – Pittsburgh International Airport | 1,408 | 12.9 min | 75.5% | 94 |
| PHL MDW Philadelphia International Airport – Chicago Midway International Airport | 1,073 | 3.1 min | 96.4% | 58 |
| ORF BWI Norfolk International Airport – Baltimore/Washington International Thurgood Marshall Airport | 257 | 12.7 min | 79.0% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 70.0% | 0 |
| November 2024 | 23 | 23 | 82.6% | 0 |
| December 2024 | 20 | 20 | 90.0% | 0 |
| January 2025 | 33 | 33 | 60.6% | 0 |
| February 2025 | 27 | 27 | 85.2% | 0 |
| March 2025 | 5 | 5 | 60.0% | 0 |
| November 2025 | 1 | 1 | 0.0% | 0 |
| January 2026 | 26 | 25 | 96.0% | 1 |
| February 2026 | 28 | 27 | 96.3% | 1 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 3 | 3 | 66.7% | 0 |
| May 2026 | 4 | 4 | 100.0% | 0 |
| June 2026 | 27 | 27 | 81.5% | 0 |
| July 2026 | 30 | 30 | 76.7% | 0 |