WN4078
WN4078 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Chicago to Omaha. Of 372 departures recorded from October 2024 to July 2026, 72.0% left on time, according to the US BTS.
- On-time departures72.0%of 372 flights
- Average delay14.8 min
- July 202644
- Cancelled1.1%
- 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 periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 22 | 5 | ▼ 77.3% |
| February | 19 | 25 | ▲ 31.6% |
| March | 4 | 71 | ▲ 1,675.0% |
| April | – | 35 | – |
| May | 1 | 25 | ▲ 2,400.0% |
| June | – | 42 | – |
| July | – | 44 | – |
| August | 4 | – | – |
| September | 4 | – | – |
| 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 86.4% | 40.0% | ▼ 53.7% |
| February | 100.0% | 60.0% | ▼ 40.0% |
| March | 100.0% | 71.0% | ▼ 29.0% |
| April | – | 68.6% | – |
| May | 100.0% | 52.0% | ▼ 48.0% |
| June | – | 39.0% | – |
| July | – | 77.3% | – |
| August | 75.0% | – | – |
| September | 75.0% | – | – |
| 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 periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 2 | ▲ 100.0% |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | – | 1 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| 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 98.9% 368
- Cancelled 1.1% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW OMA Chicago Midway International Airport – Eppley Airfield | 679 | -1.2 min | 96.7% | 62 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 20.7 min | 62.5% | 56 |
| SAN HOU San Diego International Airport – William P. Hobby Airport | 2,109 | 20.9 min | 57.1% | 49 |
| OMA MCO Eppley Airfield – Orlando International Airport | 1,949 | 3.1 min | 88.1% | 42 |
| MDW OKC Chicago Midway International Airport – OKC Will Rogers World Airport | 1,111 | 19.0 min | 78.1% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 71.4% | 0 |
| November 2024 | 31 | 31 | 90.3% | 0 |
| December 2024 | 32 | 32 | 96.9% | 0 |
| January 2025 | 22 | 22 | 86.4% | 0 |
| February 2025 | 19 | 19 | 100.0% | 0 |
| March 2025 | 4 | 3 | 100.0% | 1 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 1 | 1 | 0.0% | 0 |
| January 2026 | 5 | 5 | 40.0% | 0 |
| February 2026 | 25 | 25 | 60.0% | 0 |
| March 2026 | 71 | 69 | 71.0% | 2 |
| April 2026 | 35 | 35 | 68.6% | 0 |
| May 2026 | 25 | 25 | 52.0% | 0 |
| June 2026 | 42 | 41 | 39.0% | 1 |
| July 2026 | 44 | 44 | 77.3% | 0 |