WN4119
WN4119 (Southwest Airlines) is a multi-stop service on 24 routes, busiest San Francisco to Phoenix. Of 414 departures recorded from October 2024 to July 2026, 75.6% left on time, according to the US BTS.
- On-time departures75.6%of 414 flights
- Average delay9.4 min
- July 202632▼ 13.5%vs July 2025
- Cancelled0.0%
- Legs flown under this number24
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 7 | ▲ 600.0% |
| February | 10 | 3 | ▼ 70.0% |
| March | 28 | 31 | ▲ 10.7% |
| April | 7 | 23 | ▲ 228.6% |
| May | – | 23 | – |
| June | 28 | 28 | 0.0% |
| July | 37 | 32 | ▼ 13.5% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 32 | – | in progress |
| November | 12 | – | – |
| December | 24 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 57.1% | ▼ 42.9% |
| February | 100.0% | 33.3% | ▼ 66.7% |
| March | 75.0% | 90.3% | ▲ 20.4% |
| April | 57.1% | 65.2% | ▲ 14.1% |
| May | – | 52.2% | – |
| June | 64.3% | 96.4% | ▲ 50.0% |
| July | 67.6% | 90.6% | ▲ 34.1% |
| August | 90.0% | – | – |
| September | 80.0% | – | – |
| October | 78.1% | – | in progress |
| November | 58.3% | – | – |
| December | 50.0% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 100.0% 414
- Cancelled 0.0% 0
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO PHX San Francisco International Airport – Phoenix Sky Harbor International Airport | 1,047 | 5.5 min | 82.8% | 58 |
| OMA MCO Eppley Airfield – Orlando International Airport | 1,949 | 16.4 min | 65.4% | 52 |
| PHX SAN Phoenix Sky Harbor International Airport – San Diego International Airport | 489 | -1.2 min | 94.0% | 50 |
| SAN SJC San Diego International Airport – Mineta San Jose International Airport | 671 | 16.5 min | 52.5% | 40 |
| OKC LAS OKC Will Rogers World Airport – Harry Reid International Airport | 1,584 | 1.2 min | 93.9% | 33 |
| HOU DCA William P. Hobby Airport – Ronald Reagan Washington National Airport | 1,959 | 17.6 min | 69.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 100.0% | 0 |
| November 2024 | 14 | 14 | 78.6% | 0 |
| December 2024 | 5 | 5 | 60.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| February 2025 | 10 | 10 | 100.0% | 0 |
| March 2025 | 28 | 28 | 75.0% | 0 |
| April 2025 | 7 | 7 | 57.1% | 0 |
| June 2025 | 28 | 28 | 64.3% | 0 |
| July 2025 | 37 | 37 | 67.6% | 0 |
| August 2025 | 30 | 30 | 90.0% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 32 | 32 | 78.1% | 0 |
| November 2025 | 12 | 12 | 58.3% | 0 |
| December 2025 | 24 | 24 | 50.0% | 0 |
| January 2026 | 7 | 7 | 57.1% | 0 |
| February 2026 | 3 | 3 | 33.3% | 0 |
| March 2026 | 31 | 31 | 90.3% | 0 |
| April 2026 | 23 | 23 | 65.2% | 0 |
| May 2026 | 23 | 23 | 52.2% | 0 |
| June 2026 | 28 | 28 | 96.4% | 0 |
| July 2026 | 32 | 32 | 90.6% | 0 |