WN2159
WN2159 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Chicago to Los Angeles. Of 402 departures recorded from October 2024 to July 2026, 71.6% left on time, according to the US BTS.
- On-time departures71.6%of 402 flights
- Average delay15.9 min
- July 202622
- Cancelled0.3%
- Legs flown under this number25
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 | 19 | 27 | ▲ 42.1% |
| February | 9 | 24 | ▲ 166.7% |
| March | 2 | 16 | ▲ 700.0% |
| April | 14 | 30 | ▲ 114.3% |
| May | 17 | 35 | ▲ 105.9% |
| June | 4 | 23 | ▲ 475.0% |
| July | – | 22 | – |
| August | 20 | – | – |
| September | 22 | – | – |
| October | 35 | – | in progress |
| November | 27 | – | – |
| December | 29 | – | – |
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 | 84.2% | 66.7% | ▼ 20.8% |
| February | 100.0% | 58.3% | ▼ 41.7% |
| March | 100.0% | 50.0% | ▼ 50.0% |
| April | 92.9% | 73.3% | ▼ 21.0% |
| May | 70.6% | 71.4% | ▲ 1.2% |
| June | 50.0% | 34.8% | ▼ 30.4% |
| July | – | 45.5% | – |
| August | 75.0% | – | – |
| September | 100.0% | – | – |
| October | 60.0% | – | in progress |
| November | 80.8% | – | – |
| December | 82.8% | – | – |
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 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 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| 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 99.8% 401
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| MDW LAX Chicago Midway International Airport – Los Angeles International Airport | 2,812 | 9.5 min | 79.6% | 55 |
| DEN DTW Denver International Airport – Detroit Metropolitan Wayne County Airport | 1,802 | 22.9 min | 61.9% | 42 |
| JAX BWI Jacksonville International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,068 | 46.2 min | 36.6% | 41 |
| TPA ALB Tampa International Airport – Albany International Airport | 1,821 | 5.6 min | 87.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 93.8% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 19 | 19 | 84.2% | 0 |
| February 2025 | 9 | 9 | 100.0% | 0 |
| March 2025 | 2 | 2 | 100.0% | 0 |
| April 2025 | 14 | 14 | 92.9% | 0 |
| May 2025 | 17 | 17 | 70.6% | 0 |
| June 2025 | 4 | 4 | 50.0% | 0 |
| August 2025 | 20 | 20 | 75.0% | 0 |
| September 2025 | 22 | 22 | 100.0% | 0 |
| October 2025 | 35 | 35 | 60.0% | 0 |
| November 2025 | 27 | 26 | 80.8% | 1 |
| December 2025 | 29 | 29 | 82.8% | 0 |
| January 2026 | 27 | 27 | 66.7% | 0 |
| February 2026 | 24 | 24 | 58.3% | 0 |
| March 2026 | 16 | 16 | 50.0% | 0 |
| April 2026 | 30 | 30 | 73.3% | 0 |
| May 2026 | 35 | 35 | 71.4% | 0 |
| June 2026 | 23 | 23 | 34.8% | 0 |
| July 2026 | 22 | 22 | 45.5% | 0 |