WN1789
WN1789 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Tampa to Baltimore. Of 573 departures recorded from October 2024 to July 2026, 74.9% left on time, according to the US BTS.
- On-time departures74.9%of 573 flights
- Average delay13.7 min
- July 202617▼ 45.2%vs July 2025
- Cancelled1.4%
- 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 | 34 | 30 | ▼ 11.8% |
| February | 30 | 28 | ▼ 6.7% |
| March | 35 | 23 | ▼ 34.3% |
| April | 34 | 28 | ▼ 17.6% |
| May | 36 | 31 | ▼ 13.9% |
| June | 30 | 18 | ▼ 40.0% |
| July | 31 | 17 | ▼ 45.2% |
| August | 19 | – | – |
| September | 17 | – | – |
| October | 22 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 230 | 175 | ▼ 23.9% |
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 | 81.3% | 63.3% | ▼ 22.1% |
| February | 96.6% | 64.3% | ▼ 33.4% |
| March | 84.9% | 69.6% | ▼ 18.0% |
| April | 94.1% | 67.9% | ▼ 27.9% |
| May | 75.0% | 45.2% | ▼ 39.8% |
| June | 60.0% | 66.7% | ▲ 11.1% |
| July | 54.8% | 73.3% | ▲ 33.7% |
| August | 89.5% | – | – |
| September | 100.0% | – | – |
| October | 72.7% | – | in progress |
| November | 68.4% | – | – |
| December | 57.1% | – | – |
| Year-to-date average (Jan–Jul) | 78.1% | 64.3% | ▼ 17.6% |
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 | 2 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 2 | ▼ 60.0% |
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 98.6% 565
- Cancelled 1.4% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 BWI Tampa International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,358 | 1.0 min | 92.0% | 104 |
| MIA STL Miami International Airport – St. Louis Lambert International Airport | 1,722 | 34.2 min | 55.7% | 61 |
| MKE PHX General Mitchell International Airport – Phoenix Sky Harbor International Airport | 2,346 | 15.7 min | 63.8% | 58 |
| BNA CMH Nashville International Airport – John Glenn Columbus International Airport | 543 | 23.1 min | 56.1% | 57 |
| IND TPA Indianapolis International Airport – Tampa International Airport | 1,351 | 7.0 min | 86.0% | 50 |
| BWI DEN Baltimore/Washington International Thurgood Marshall Airport – Denver International Airport | 2,394 | 4.4 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 68.8% | 0 |
| November 2024 | 29 | 29 | 96.6% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 34 | 32 | 81.3% | 2 |
| February 2025 | 30 | 29 | 96.6% | 1 |
| March 2025 | 35 | 33 | 84.9% | 2 |
| April 2025 | 34 | 34 | 94.1% | 0 |
| May 2025 | 36 | 36 | 75.0% | 0 |
| June 2025 | 30 | 30 | 60.0% | 0 |
| July 2025 | 31 | 31 | 54.8% | 0 |
| August 2025 | 19 | 19 | 89.5% | 0 |
| September 2025 | 17 | 17 | 100.0% | 0 |
| October 2025 | 22 | 22 | 72.7% | 0 |
| November 2025 | 19 | 19 | 68.4% | 0 |
| December 2025 | 15 | 14 | 57.1% | 1 |
| January 2026 | 30 | 30 | 63.3% | 0 |
| February 2026 | 28 | 28 | 64.3% | 0 |
| March 2026 | 23 | 23 | 69.6% | 0 |
| April 2026 | 28 | 28 | 67.9% | 0 |
| May 2026 | 31 | 31 | 45.2% | 0 |
| June 2026 | 18 | 18 | 66.7% | 0 |
| July 2026 | 17 | 15 | 73.3% | 2 |