WN1839
WN1839 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Tampa to Nashville. Of 676 departures recorded from October 2024 to July 2026, 74.3% left on time, according to the US BTS.
- On-time departures74.3%of 676 flights
- Average delay11.6 min
- July 202651▲ 96.2%vs July 2025
- Cancelled1.8%
- Legs flown under this number27
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 | 28 | 32 | ▲ 14.3% |
| February | 26 | 36 | ▲ 38.5% |
| March | 29 | 32 | ▲ 10.3% |
| April | 25 | 30 | ▲ 20.0% |
| May | 27 | 31 | ▲ 14.8% |
| June | 25 | 50 | ▲ 100.0% |
| July | 26 | 51 | ▲ 96.2% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 186 | 262 | ▲ 40.9% |
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 | 70.4% | 76.7% | ▲ 9.0% |
| February | 69.2% | 75.0% | ▲ 8.3% |
| March | 88.9% | 76.7% | ▼ 13.7% |
| April | 72.0% | 86.7% | ▲ 20.4% |
| May | 65.4% | 71.0% | ▲ 8.6% |
| June | 87.5% | 52.0% | ▼ 40.6% |
| July | 84.6% | 74.0% | ▼ 12.6% |
| August | 79.3% | – | – |
| September | 66.7% | – | – |
| October | 86.7% | – | in progress |
| November | 75.9% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 76.9% | 73.1% | ▼ 4.8% |
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 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 2 | 2 | 0.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 5 | 0.0% |
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 98.2% 664
- Cancelled 1.8% 12
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 | 20 | 20 | 90.0% | 0 |
| November 2024 | 27 | 27 | 70.4% | 0 |
| December 2024 | 31 | 31 | 58.1% | 0 |
| January 2025 | 28 | 27 | 70.4% | 1 |
| February 2025 | 26 | 26 | 69.2% | 0 |
| March 2025 | 29 | 27 | 88.9% | 2 |
| April 2025 | 25 | 25 | 72.0% | 0 |
| May 2025 | 27 | 26 | 65.4% | 1 |
| June 2025 | 25 | 24 | 87.5% | 1 |
| July 2025 | 26 | 26 | 84.6% | 0 |
| August 2025 | 29 | 29 | 79.3% | 0 |
| September 2025 | 30 | 30 | 66.7% | 0 |
| October 2025 | 30 | 30 | 86.7% | 0 |
| November 2025 | 30 | 29 | 75.9% | 1 |
| December 2025 | 31 | 30 | 80.0% | 1 |
| January 2026 | 32 | 30 | 76.7% | 2 |
| February 2026 | 36 | 36 | 75.0% | 0 |
| March 2026 | 32 | 30 | 76.7% | 2 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 71.0% | 0 |
| June 2026 | 50 | 50 | 52.0% | 0 |
| July 2026 | 51 | 50 | 74.0% | 1 |