WN4418
WN4418 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Raleigh to Chicago. Of 434 departures recorded from October 2024 to July 2026, 71.4% left on time, according to the US BTS.
- On-time departures71.4%of 434 flights
- Average delay14.8 min
- July 202616▼ 40.7%vs July 2025
- Cancelled1.6%
- 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 periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 29 | ▲ 16.0% |
| February | 17 | 38 | ▲ 123.5% |
| March | 27 | 13 | ▼ 51.9% |
| April | 6 | 2 | ▼ 66.7% |
| May | – | – | – |
| June | 22 | 16 | ▼ 27.3% |
| July | 27 | 16 | ▼ 40.7% |
| August | 14 | – | – |
| September | 13 | – | – |
| October | 23 | – | in progress |
| November | 28 | – | – |
| December | 22 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | 88.9% | ▲ 11.1% |
| February | 70.6% | 72.2% | ▲ 2.3% |
| March | 48.2% | 58.3% | ▲ 21.1% |
| April | 33.3% | 100.0% | ▲ 200.0% |
| May | – | – | – |
| June | 77.3% | 50.0% | ▼ 35.3% |
| July | 70.4% | 42.9% | ▼ 39.1% |
| August | 64.3% | – | – |
| September | 61.5% | – | – |
| October | 91.3% | – | in progress |
| November | 92.9% | – | – |
| December | 90.9% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | – | – | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| 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 98.4% 427
- Cancelled 1.6% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| RDU MDW Raleigh-Durham International Airport – Chicago Midway International Airport | 1,016 | 14.2 min | 72.2% | 97 |
| CMH BWI John Glenn Columbus International Airport – Baltimore/Washington International Thurgood Marshall Airport | 541 | 10.3 min | 82.7% | 55 |
| SMF SLC Sacramento International Airport – Salt Lake City International Airport | 854 | 16.5 min | 71.2% | 52 |
| SRQ STL Sarasota Bradenton International Airport – St. Louis Lambert International Airport | 1,456 | -1.3 min | 95.7% | 46 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 84.2% | 0 |
| November 2024 | 42 | 42 | 71.4% | 0 |
| December 2024 | 35 | 35 | 54.3% | 0 |
| January 2025 | 25 | 25 | 80.0% | 0 |
| February 2025 | 17 | 17 | 70.6% | 0 |
| March 2025 | 27 | 27 | 48.2% | 0 |
| April 2025 | 6 | 6 | 33.3% | 0 |
| June 2025 | 22 | 22 | 77.3% | 0 |
| July 2025 | 27 | 27 | 70.4% | 0 |
| August 2025 | 14 | 14 | 64.3% | 0 |
| September 2025 | 13 | 13 | 61.5% | 0 |
| October 2025 | 23 | 23 | 91.3% | 0 |
| November 2025 | 28 | 28 | 92.9% | 0 |
| December 2025 | 22 | 22 | 90.9% | 0 |
| January 2026 | 29 | 27 | 88.9% | 2 |
| February 2026 | 38 | 36 | 72.2% | 2 |
| March 2026 | 13 | 12 | 58.3% | 1 |
| April 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 16 | 16 | 50.0% | 0 |
| July 2026 | 16 | 14 | 42.9% | 2 |