WN4164
WN4164 (Southwest Airlines) is a multi-stop service on 13 routes, busiest West Palm Beach to Baltimore. Of 403 departures recorded from October 2024 to July 2026, 65.2% left on time, according to the US BTS.
- On-time departures65.2%of 403 flights
- Average delay20.3 min
- July 202630▼ 3.2%vs July 2025
- Cancelled1.7%
- Legs flown under this number13
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 | 11 | 2 | ▼ 81.8% |
| February | 19 | 10 | ▼ 47.4% |
| March | 2 | 1 | ▼ 50.0% |
| April | 32 | 21 | ▼ 34.4% |
| May | 45 | 27 | ▼ 40.0% |
| June | 31 | 30 | ▼ 3.2% |
| July | 31 | 30 | ▼ 3.2% |
| August | 18 | – | – |
| September | 17 | – | – |
| October | 1 | – | in progress |
| November | 24 | – | – |
| December | 20 | – | – |
| Year to date (Jan–Jul) | 171 | 121 | ▼ 29.2% |
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 | 72.7% | 50.0% | ▼ 31.3% |
| February | 79.0% | 60.0% | ▼ 24.0% |
| March | 100.0% | 100.0% | 0.0% |
| April | 62.5% | 47.6% | ▼ 23.8% |
| May | 55.8% | 29.6% | ▼ 46.9% |
| June | 80.7% | 36.7% | ▼ 54.5% |
| July | 90.0% | 34.6% | ▼ 61.5% |
| August | 77.8% | – | – |
| September | 88.2% | – | – |
| October | 100.0% | – | in progress |
| November | 66.7% | – | – |
| December | 85.0% | – | – |
| Year-to-date average (Jan–Jul) | 77.2% | 51.2% | ▼ 33.7% |
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 | 2 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 4 | ▲ 300.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 4 | ▲ 33.3% |
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 98.3% 396
- Cancelled 1.7% 7
Share of all recorded flights in the period, all legs. · Oct 14, 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 |
|---|---|---|---|---|
| DJT BWI President Donald J. Trump International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,425 | 9.3 min | 88.3% | 61 |
| DEN SJC Denver International Airport – Mineta San Jose International Airport | 1,522 | 26.1 min | 66.7% | 58 |
| BWI PIT Baltimore/Washington International Thurgood Marshall Airport – Pittsburgh International Airport | 338 | 41.8 min | 37.7% | 57 |
| SAT LAX San Antonio International Airport – Los Angeles International Airport | 1,945 | 26.5 min | 36.0% | 50 |
| PIT MCO Pittsburgh International Airport – Orlando International Airport | 1,345 | 13.3 min | 73.9% | 46 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 0.4 min | 81.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 92.3% | 0 |
| November 2024 | 14 | 14 | 85.7% | 0 |
| December 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 11 | 11 | 72.7% | 0 |
| February 2025 | 19 | 19 | 79.0% | 0 |
| March 2025 | 2 | 2 | 100.0% | 0 |
| April 2025 | 32 | 32 | 62.5% | 0 |
| May 2025 | 45 | 43 | 55.8% | 2 |
| June 2025 | 31 | 31 | 80.7% | 0 |
| July 2025 | 31 | 30 | 90.0% | 1 |
| August 2025 | 18 | 18 | 77.8% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 24 | 24 | 66.7% | 0 |
| December 2025 | 20 | 20 | 85.0% | 0 |
| January 2026 | 2 | 2 | 50.0% | 0 |
| February 2026 | 10 | 10 | 60.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| April 2026 | 21 | 21 | 47.6% | 0 |
| May 2026 | 27 | 27 | 29.6% | 0 |
| June 2026 | 30 | 30 | 36.7% | 0 |
| July 2026 | 30 | 26 | 34.6% | 4 |