WN4154
WN4154 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Chicago to Orlando. Of 346 departures recorded from October 2024 to July 2026, 87.5% left on time, according to the US BTS.
- On-time departures87.5%of 346 flights
- Average delay9.0 min
- July 202658▲ 87.1%vs July 2025
- Cancelled0.9%
- Legs flown under this number21
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 | 1 | 1 | 0.0% |
| February | 10 | 1 | ▼ 90.0% |
| March | 27 | 34 | ▲ 25.9% |
| April | 6 | 7 | ▲ 16.7% |
| May | 1 | – | – |
| June | 26 | 44 | ▲ 69.2% |
| July | 31 | 58 | ▲ 87.1% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 1 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
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 | 100.0% | 0.0% | ▼ 100.0% |
| February | 88.9% | 100.0% | ▲ 12.5% |
| March | 96.3% | 54.6% | ▼ 43.4% |
| April | 100.0% | 28.6% | ▼ 71.4% |
| May | 100.0% | – | – |
| June | 92.3% | 90.9% | ▼ 1.5% |
| July | 100.0% | 87.7% | ▼ 12.3% |
| August | 93.6% | – | – |
| September | 96.7% | – | – |
| October | 100.0% | – | in progress |
| November | 66.7% | – | – |
| December | 100.0% | – | – |
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 | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| 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 99.1% 343
- Cancelled 0.9% 3
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 |
|---|---|---|---|---|
| ORD MCO Chicago O'Hare International Airport – Orlando International Airport | 1,620 | 1.3 min | 95.1% | 61 |
| RDU STL Raleigh-Durham International Airport – St. Louis Lambert International Airport | 1,072 | 0.9 min | 96.6% | 58 |
| MDW ATL Chicago Midway International Airport – Hartsfield Jackson Atlanta International Airport | 952 | 8.4 min | 83.3% | 42 |
| ORD TPA Chicago O'Hare International Airport – Tampa International Airport | 1,631 | 47.6 min | 56.3% | 33 |
| HNL KOA Daniel K. Inouye International Airport – Ellison Onizuka Kona International Airport at Keāhole | 263 | -0.9 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 88.5% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 2 | 2 | 100.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| February 2025 | 10 | 9 | 88.9% | 1 |
| March 2025 | 27 | 27 | 96.3% | 0 |
| April 2025 | 6 | 6 | 100.0% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 26 | 26 | 92.3% | 0 |
| July 2025 | 31 | 31 | 100.0% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 1 | 1 | 0.0% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 34 | 33 | 54.6% | 1 |
| April 2026 | 7 | 7 | 28.6% | 0 |
| June 2026 | 44 | 44 | 90.9% | 0 |
| July 2026 | 58 | 57 | 87.7% | 1 |