WN4018
WN4018 (Southwest Airlines) is a multi-stop service on 21 routes, busiest New Orleans to Las Vegas. Of 384 departures recorded from October 2024 to July 2026, 72.9% left on time, according to the US BTS.
- On-time departures72.9%of 384 flights
- Average delay14.1 min
- July 202630▲ 11.1%vs July 2025
- Cancelled0.0%
- 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 | 5 | – | – |
| February | 7 | 2 | ▼ 71.4% |
| March | 9 | 27 | ▲ 200.0% |
| April | 25 | 27 | ▲ 8.0% |
| May | 31 | 26 | ▼ 16.1% |
| June | 26 | 30 | ▲ 15.4% |
| July | 27 | 30 | ▲ 11.1% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 26 | – | in progress |
| November | 2 | – | – |
| December | 3 | – | – |
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% | – | – |
| February | 85.7% | 100.0% | ▲ 16.7% |
| March | 55.6% | 96.3% | ▲ 73.3% |
| April | 64.0% | 100.0% | ▲ 56.3% |
| May | 64.5% | 100.0% | ▲ 55.0% |
| June | 61.5% | 96.7% | ▲ 57.1% |
| July | 48.2% | 93.3% | ▲ 93.8% |
| August | 51.7% | – | – |
| September | 63.3% | – | – |
| October | 23.1% | – | in progress |
| November | 100.0% | – | – |
| 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 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| 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 100.0% 384
- Cancelled 0.0% 0
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSY LAS Louis Armstrong New Orleans International Airport – Harry Reid International Airport | 2,409 | 15.2 min | 65.5% | 58 |
| TPA DEN Tampa International Airport – Denver International Airport | 2,423 | 2.1 min | 94.7% | 57 |
| PHX AUS Phoenix Sky Harbor International Airport – Austin Bergstrom International Airport | 1,401 | 22.3 min | 59.7% | 57 |
| PHX OAK Phoenix Sky Harbor International Airport – Oakland San Francisco Bay Airport | 1,039 | 35.0 min | 50.0% | 52 |
| RNO LGB Reno Tahoe International Airport – Long Beach International Airport | 648 | -2.4 min | 100.0% | 50 |
| MHT BWI Manchester-Boston Regional Airport – Baltimore/Washington International Thurgood Marshall Airport | 606 | -4.5 min | 97.0% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 71.4% | 0 |
| November 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 5 | 5 | 100.0% | 0 |
| February 2025 | 7 | 7 | 85.7% | 0 |
| March 2025 | 9 | 9 | 55.6% | 0 |
| April 2025 | 25 | 25 | 64.0% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 26 | 26 | 61.5% | 0 |
| July 2025 | 27 | 27 | 48.2% | 0 |
| August 2025 | 29 | 29 | 51.7% | 0 |
| September 2025 | 30 | 30 | 63.3% | 0 |
| October 2025 | 26 | 26 | 23.1% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 3 | 3 | 100.0% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 27 | 27 | 96.3% | 0 |
| April 2026 | 27 | 27 | 100.0% | 0 |
| May 2026 | 26 | 26 | 100.0% | 0 |
| June 2026 | 30 | 30 | 96.7% | 0 |
| July 2026 | 30 | 30 | 93.3% | 0 |