WN3961
WN3961 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Baltimore to Miami. Of 497 departures recorded from October 2024 to July 2026, 70.7% left on time, according to the US BTS.
- On-time departures70.7%of 497 flights
- Average delay15.2 min
- July 202621▲ 5.0%vs July 2025
- Cancelled1.8%
- Legs flown under this number22
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 10 | ▼ 67.7% |
| February | 28 | – | – |
| March | 9 | 70 | ▲ 677.8% |
| April | 21 | 29 | ▲ 38.1% |
| May | 20 | 17 | ▼ 15.0% |
| June | 21 | 17 | ▼ 19.0% |
| July | 20 | 21 | ▲ 5.0% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | – | – | in progress |
| November | 44 | – | – |
| December | 53 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 62.1% | 40.0% | ▼ 35.6% |
| February | 60.7% | – | – |
| March | 88.9% | 58.8% | ▼ 33.8% |
| April | 71.4% | 89.7% | ▲ 25.5% |
| May | 60.0% | 94.1% | ▲ 56.9% |
| June | 50.0% | 88.2% | ▲ 76.5% |
| July | 68.4% | 76.2% | ▲ 11.4% |
| August | 85.7% | – | – |
| September | 25.0% | – | – |
| October | – | – | in progress |
| November | 81.0% | – | – |
| December | 77.4% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | 2 | – | – |
| 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 98.2% 488
- Cancelled 1.8% 9
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI MIA Baltimore/Washington International Thurgood Marshall Airport – Miami International Airport | 1,526 | 17.9 min | 67.0% | 104 |
| OMA HOU Eppley Airfield – William P. Hobby Airport | 1,298 | 2.9 min | 91.1% | 46 |
| FLL BWI Fort Lauderdale Hollywood International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,493 | 21.3 min | 65.0% | 40 |
| PHX OMA Phoenix Sky Harbor International Airport – Eppley Airfield | 1,667 | 12.0 min | 64.7% | 35 |
| MIA BWI Miami International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,526 | 26.9 min | 54.6% | 35 |
| STL MSP St. Louis Lambert International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 722 | 9.9 min | 88.2% | 34 |
| PSP SMF Palm Springs International Airport – Sacramento International Airport | 707 | -4.9 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 28 | 28 | 67.9% | 0 |
| December 2024 | 30 | 29 | 62.1% | 1 |
| January 2025 | 31 | 29 | 62.1% | 2 |
| February 2025 | 28 | 28 | 60.7% | 0 |
| March 2025 | 9 | 9 | 88.9% | 0 |
| April 2025 | 21 | 21 | 71.4% | 0 |
| May 2025 | 20 | 20 | 60.0% | 0 |
| June 2025 | 21 | 20 | 50.0% | 1 |
| July 2025 | 20 | 19 | 68.4% | 1 |
| August 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 4 | 4 | 25.0% | 0 |
| November 2025 | 44 | 42 | 81.0% | 2 |
| December 2025 | 53 | 53 | 77.4% | 0 |
| January 2026 | 10 | 10 | 40.0% | 0 |
| March 2026 | 70 | 68 | 58.8% | 2 |
| April 2026 | 29 | 29 | 89.7% | 0 |
| May 2026 | 17 | 17 | 94.1% | 0 |
| June 2026 | 17 | 17 | 88.2% | 0 |
| July 2026 | 21 | 21 | 76.2% | 0 |