WN4348
WN4348 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Tampa to St Louis. Of 475 departures recorded from October 2024 to July 2026, 83.7% left on time, according to the US BTS.
- On-time departures83.7%of 475 flights
- Average delay5.6 min
- July 202630▲ 50.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number19
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 | 31 | 29 | ▼ 6.5% |
| February | 28 | 38 | ▲ 35.7% |
| March | 31 | 5 | ▼ 83.9% |
| April | 19 | 21 | ▲ 10.5% |
| May | 18 | 26 | ▲ 44.4% |
| June | 22 | 30 | ▲ 36.4% |
| July | 20 | 30 | ▲ 50.0% |
| August | 4 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 5 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 169 | 179 | ▲ 5.9% |
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 | 93.1% | 75.9% | ▼ 18.5% |
| February | 100.0% | 89.5% | ▼ 10.5% |
| March | 80.7% | 80.0% | ▼ 0.8% |
| April | 89.5% | 76.2% | ▼ 14.8% |
| May | 94.4% | 65.4% | ▼ 30.8% |
| June | 95.5% | 90.0% | ▼ 5.7% |
| July | 95.0% | 90.0% | ▼ 5.3% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 46.7% | – | in progress |
| November | 100.0% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 92.6% | 81.0% | ▼ 12.5% |
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 | 2 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| 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 99.2% 471
- Cancelled 0.8% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | -3.2 min | 98.8% | 87 |
| DEN GEG Denver International Airport – Spokane International Airport | 1,343 | 6.8 min | 81.0% | 58 |
| OAK LAS Oakland San Francisco Bay Airport – Harry Reid International Airport | 654 | 2.9 min | 89.5% | 57 |
| SMF LGB Sacramento International Airport – Long Beach International Airport | 624 | 7.9 min | 72.0% | 50 |
| RNO DEN Reno Tahoe International Airport – Denver International Airport | 1,291 | 2.6 min | 95.5% | 44 |
| SRQ ATL Sarasota Bradenton International Airport – Hartsfield Jackson Atlanta International Airport | 717 | 4.9 min | 75.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 30 | 29 | 82.8% | 1 |
| December 2024 | 30 | 30 | 80.0% | 0 |
| January 2025 | 31 | 29 | 93.1% | 2 |
| February 2025 | 28 | 27 | 100.0% | 1 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 19 | 19 | 89.5% | 0 |
| May 2025 | 18 | 18 | 94.4% | 0 |
| June 2025 | 22 | 22 | 95.5% | 0 |
| July 2025 | 20 | 20 | 95.0% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 30 | 30 | 46.7% | 0 |
| November 2025 | 5 | 5 | 100.0% | 0 |
| December 2025 | 11 | 11 | 63.6% | 0 |
| January 2026 | 29 | 29 | 75.9% | 0 |
| February 2026 | 38 | 38 | 89.5% | 0 |
| March 2026 | 5 | 5 | 80.0% | 0 |
| April 2026 | 21 | 21 | 76.2% | 0 |
| May 2026 | 26 | 26 | 65.4% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 30 | 30 | 90.0% | 0 |