WN4094
WN4094 (Southwest Airlines) is a multi-stop service on 12 routes, busiest San Diego to Chicago. Of 217 departures recorded from October 2024 to July 2026, 68.1% left on time, according to the US BTS.
- On-time departures68.1%of 217 flights
- Average delay14.0 min
- July 202627
- Cancelled1.8%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods10 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 2 | – |
| March | – | 12 | – |
| April | 26 | 27 | ▲ 3.8% |
| May | 36 | 31 | ▼ 13.9% |
| June | 4 | 26 | ▲ 550.0% |
| July | – | 27 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
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 periods10 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 100.0% | – |
| March | – | 41.7% | – |
| April | 65.4% | 81.5% | ▲ 24.6% |
| May | 91.7% | 86.2% | ▼ 6.0% |
| June | 100.0% | 34.6% | ▼ 65.4% |
| July | – | 38.5% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0.0% | – | – |
| December | – | – | – |
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 periods10 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 98.2% 213
- Cancelled 1.8% 4
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAN MDW San Diego International Airport – Chicago Midway International Airport | 2,776 | 0.2 min | 85.7% | 58 |
| OMA MDW Eppley Airfield – Chicago Midway International Airport | 679 | 32.2 min | 34.7% | 50 |
| FAT LAS Fresno Yosemite International Airport – Harry Reid International Airport | 416 | 6.6 min | 83.3% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 22 | 22 | 81.8% | 0 |
| November 2024 | 3 | 3 | 33.3% | 0 |
| April 2025 | 26 | 26 | 65.4% | 0 |
| May 2025 | 36 | 36 | 91.7% | 0 |
| June 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 1 | 1 | 0.0% | 0 |
| February 2026 | 2 | 1 | 100.0% | 1 |
| March 2026 | 12 | 12 | 41.7% | 0 |
| April 2026 | 27 | 27 | 81.5% | 0 |
| May 2026 | 31 | 29 | 86.2% | 2 |
| June 2026 | 26 | 26 | 34.6% | 0 |
| July 2026 | 27 | 26 | 38.5% | 1 |