WN3435
WN3435 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Raleigh to St Louis. Of 406 departures recorded from October 2024 to July 2026, 61.6% left on time, according to the US BTS.
- On-time departures61.6%of 406 flights
- Average delay20.7 min
- July 202630▼ 9.1%vs July 2025
- Cancelled0.5%
- Legs flown under this number27
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 | 9 | 5 | ▼ 44.4% |
| February | 16 | 27 | ▲ 68.8% |
| March | 16 | 29 | ▲ 81.3% |
| April | 19 | 49 | ▲ 157.9% |
| May | 26 | 50 | ▲ 92.3% |
| June | 26 | 33 | ▲ 26.9% |
| July | 33 | 30 | ▼ 9.1% |
| August | 4 | – | – |
| September | – | – | – |
| October | 22 | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 145 | 223 | ▲ 53.8% |
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 | 77.8% | 20.0% | ▼ 74.3% |
| February | 75.0% | 63.0% | ▼ 16.1% |
| March | 100.0% | 64.3% | ▼ 35.7% |
| April | 73.7% | 40.8% | ▼ 44.6% |
| May | 46.2% | 22.0% | ▼ 52.3% |
| June | 61.5% | 72.7% | ▲ 18.2% |
| July | 63.6% | 96.7% | ▲ 51.9% |
| August | 25.0% | – | – |
| September | – | – | – |
| October | 85.7% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 71.1% | 54.2% | ▼ 23.8% |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.5% 404
- Cancelled 0.5% 2
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 |
|---|---|---|---|---|
| RDU STL Raleigh-Durham International Airport – St. Louis Lambert International Airport | 1,072 | 1.9 min | 93.0% | 57 |
| FLL HOU Fort Lauderdale Hollywood International Airport – William P. Hobby Airport | 1,538 | 37.9 min | 26.0% | 50 |
| DEN PHX Denver International Airport – Phoenix Sky Harbor International Airport | 968 | 26.1 min | 55.0% | 40 |
| BNA LIT Nashville International Airport – Bill & Hillary Clinton National Airport/Adams Field | 526 | 13.0 min | 65.6% | 33 |
| HOU LAS William P. Hobby Airport – Harry Reid International Airport | 1,985 | 41.1 min | 29.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 2 | 2 | 100.0% | 0 |
| January 2025 | 9 | 9 | 77.8% | 0 |
| February 2025 | 16 | 16 | 75.0% | 0 |
| March 2025 | 16 | 16 | 100.0% | 0 |
| April 2025 | 19 | 19 | 73.7% | 0 |
| May 2025 | 26 | 26 | 46.2% | 0 |
| June 2025 | 26 | 26 | 61.5% | 0 |
| July 2025 | 33 | 33 | 63.6% | 0 |
| August 2025 | 4 | 4 | 25.0% | 0 |
| October 2025 | 22 | 21 | 85.7% | 1 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 5 | 5 | 20.0% | 0 |
| February 2026 | 27 | 27 | 63.0% | 0 |
| March 2026 | 29 | 28 | 64.3% | 1 |
| April 2026 | 49 | 49 | 40.8% | 0 |
| May 2026 | 50 | 50 | 22.0% | 0 |
| June 2026 | 33 | 33 | 72.7% | 0 |
| July 2026 | 30 | 30 | 96.7% | 0 |