WN4389
WN4389 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Sacramento to Long Beach. Of 397 departures recorded from October 2024 to July 2026, 72.2% left on time, according to the US BTS.
- On-time departures72.2%of 397 flights
- Average delay14.7 min
- July 202655▲ 1,275.0%vs July 2025
- Cancelled1.3%
- Legs flown under this number20
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 | 27 | 28 | ▲ 3.7% |
| February | 40 | 28 | ▼ 30.0% |
| March | 28 | 4 | ▼ 85.7% |
| April | 6 | 11 | ▲ 83.3% |
| May | – | 12 | – |
| June | 4 | 49 | ▲ 1,125.0% |
| July | 4 | 55 | ▲ 1,275.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 12 | – | in progress |
| November | 2 | – | – |
| December | 9 | – | – |
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 | 84.6% | 92.0% | ▲ 8.7% |
| February | 90.0% | 100.0% | ▲ 11.1% |
| March | 71.4% | 100.0% | ▲ 40.0% |
| April | 50.0% | 81.8% | ▲ 63.6% |
| May | – | 66.7% | – |
| June | 25.0% | 28.6% | ▲ 14.3% |
| July | 50.0% | 51.9% | ▲ 3.7% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 91.7% | – | in progress |
| November | 100.0% | – | – |
| December | 77.8% | – | – |
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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | – | – | – |
| 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 98.7% 392
- Cancelled 1.3% 5
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF LGB Sacramento International Airport – Long Beach International Airport | 624 | 2.2 min | 88.7% | 62 |
| MDW BNA Chicago Midway International Airport – Nashville International Airport | 636 | -2.4 min | 96.4% | 58 |
| DAL BHM Dallas Love Field – Birmingham-Shuttlesworth International Airport | 942 | 35.0 min | 38.8% | 50 |
| HOU MCO William P. Hobby Airport – Orlando International Airport | 1,364 | 12.2 min | 76.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 22 | 22 | 86.4% | 0 |
| November 2024 | 26 | 26 | 92.3% | 0 |
| December 2024 | 29 | 29 | 72.4% | 0 |
| January 2025 | 27 | 26 | 84.6% | 1 |
| February 2025 | 40 | 40 | 90.0% | 0 |
| March 2025 | 28 | 28 | 71.4% | 0 |
| April 2025 | 6 | 6 | 50.0% | 0 |
| June 2025 | 4 | 4 | 25.0% | 0 |
| July 2025 | 4 | 4 | 50.0% | 0 |
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 12 | 12 | 91.7% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 9 | 9 | 77.8% | 0 |
| January 2026 | 28 | 25 | 92.0% | 3 |
| February 2026 | 28 | 28 | 100.0% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 11 | 11 | 81.8% | 0 |
| May 2026 | 12 | 12 | 66.7% | 0 |
| June 2026 | 49 | 49 | 28.6% | 0 |
| July 2026 | 55 | 54 | 51.9% | 1 |