WN4447
WN4447 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Baltimore to Phoenix. Of 448 departures recorded from October 2024 to July 2026, 77.5% left on time, according to the US BTS.
- On-time departures77.5%of 448 flights
- Average delay12.7 min
- July 202630▲ 42.9%vs July 2025
- Cancelled0.0%
- Legs flown under this number16
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 | 8 | 31 | ▲ 287.5% |
| February | 18 | 28 | ▲ 55.6% |
| March | 25 | 30 | ▲ 20.0% |
| April | 13 | 9 | ▼ 30.8% |
| May | 8 | 4 | ▼ 50.0% |
| June | 22 | 27 | ▲ 22.7% |
| July | 21 | 30 | ▲ 42.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 1 | – | in progress |
| November | 26 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 115 | 159 | ▲ 38.3% |
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 | 62.5% | 93.6% | ▲ 49.7% |
| February | 77.8% | 100.0% | ▲ 28.6% |
| March | 84.0% | 96.7% | ▲ 15.1% |
| April | 76.9% | 100.0% | ▲ 30.0% |
| May | 100.0% | 100.0% | 0.0% |
| June | 86.4% | 25.9% | ▼ 70.0% |
| July | 76.2% | 30.0% | ▼ 60.6% |
| August | 77.4% | – | – |
| September | 83.3% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 96.3% | – | – |
| Year-to-date average (Jan–Jul) | 80.5% | 78.0% | ▼ 3.1% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 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 100.0% 448
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 15, 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 |
|---|---|---|---|---|
| BWI PHX Baltimore/Washington International Thurgood Marshall Airport – Phoenix Sky Harbor International Airport | 3,209 | 11.1 min | 70.4% | 71 |
| SAT DEN San Antonio International Airport – Denver International Airport | 1,280 | 2.3 min | 96.6% | 58 |
| TPA AUS Tampa International Airport – Austin Bergstrom International Airport | 1,490 | -3.5 min | 98.3% | 57 |
| DEN PHX Denver International Airport – Phoenix Sky Harbor International Airport | 968 | 51.7 min | 28.1% | 57 |
| CHS DAL Charleston International Airport – Dallas Love Field | 1,568 | 6.8 min | 86.0% | 50 |
| SJC MDW Mineta San Jose International Airport – Chicago Midway International Airport | 2,950 | -1.4 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 57.1% | 0 |
| November 2024 | 24 | 24 | 70.8% | 0 |
| December 2024 | 28 | 28 | 57.1% | 0 |
| January 2025 | 8 | 8 | 62.5% | 0 |
| February 2025 | 18 | 18 | 77.8% | 0 |
| March 2025 | 25 | 25 | 84.0% | 0 |
| April 2025 | 13 | 13 | 76.9% | 0 |
| May 2025 | 8 | 8 | 100.0% | 0 |
| June 2025 | 22 | 22 | 86.4% | 0 |
| July 2025 | 21 | 21 | 76.2% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 26 | 26 | 100.0% | 0 |
| December 2025 | 27 | 27 | 96.3% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 28 | 28 | 100.0% | 0 |
| March 2026 | 30 | 30 | 96.7% | 0 |
| April 2026 | 9 | 9 | 100.0% | 0 |
| May 2026 | 4 | 4 | 100.0% | 0 |
| June 2026 | 27 | 27 | 25.9% | 0 |
| July 2026 | 30 | 30 | 30.0% | 0 |