WN3138
WN3138 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Sacramento to San Diego. Of 465 departures recorded from October 2024 to July 2026, 72.3% left on time, according to the US BTS.
- On-time departures72.3%of 465 flights
- Average delay16.9 min
- July 20263▼ 90.0%vs July 2025
- Cancelled0.7%
- Legs flown under this number17
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 | 7 | 28 | ▲ 300.0% |
| February | – | 17 | – |
| March | 42 | 3 | ▼ 92.9% |
| April | 10 | 24 | ▲ 140.0% |
| May | 1 | 31 | ▲ 3,000.0% |
| June | 26 | 7 | ▼ 73.1% |
| July | 30 | 3 | ▼ 90.0% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 31 | – | – |
| December | 40 | – | – |
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 | 71.4% | 85.7% | ▲ 20.0% |
| February | – | 94.1% | – |
| March | 83.3% | 100.0% | ▲ 20.0% |
| April | 60.0% | 70.8% | ▲ 18.0% |
| May | 0.0% | 61.3% | – |
| June | 46.2% | 57.1% | ▲ 23.8% |
| July | 62.1% | 66.7% | ▲ 7.4% |
| August | 60.7% | – | – |
| September | 70.0% | – | – |
| October | 70.0% | – | in progress |
| November | 76.7% | – | – |
| December | 82.5% | – | – |
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 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| 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 99.4% 462
- Cancelled 0.6% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 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 |
|---|---|---|---|---|
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 15.5 min | 84.1% | 64 |
| BNA CHS Nashville International Airport – Charleston International Airport | 706 | 26.3 min | 55.9% | 60 |
| DEN RDU Denver International Airport – Raleigh-Durham International Airport | 2,307 | 14.4 min | 65.5% | 58 |
| DCA MDW Ronald Reagan Washington National Airport – Chicago Midway International Airport | 964 | 14.1 min | 72.9% | 49 |
| LAS DEN Harry Reid International Airport – Denver International Airport | 1,009 | 3.7 min | 90.2% | 41 |
| PHX SAT Phoenix Sky Harbor International Airport – San Antonio International Airport | 1,354 | 23.3 min | 74.3% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 81.3% | 0 |
| November 2024 | 34 | 34 | 82.4% | 0 |
| December 2024 | 26 | 26 | 65.4% | 0 |
| January 2025 | 7 | 7 | 71.4% | 0 |
| March 2025 | 42 | 42 | 83.3% | 0 |
| April 2025 | 10 | 10 | 60.0% | 0 |
| May 2025 | 1 | 1 | 0.0% | 0 |
| June 2025 | 26 | 26 | 46.2% | 0 |
| July 2025 | 30 | 29 | 62.1% | 1 |
| August 2025 | 29 | 28 | 60.7% | 1 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 30 | 30 | 70.0% | 0 |
| November 2025 | 31 | 30 | 76.7% | 1 |
| December 2025 | 40 | 40 | 82.5% | 0 |
| January 2026 | 28 | 28 | 85.7% | 0 |
| February 2026 | 17 | 17 | 94.1% | 0 |
| March 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 24 | 24 | 70.8% | 0 |
| May 2026 | 31 | 31 | 61.3% | 0 |
| June 2026 | 7 | 7 | 57.1% | 0 |
| July 2026 | 3 | 3 | 66.7% | 0 |