WN4317
WN4317 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Dallas to Las Vegas. Of 419 departures recorded from October 2024 to July 2026, 75.1% left on time, according to the US BTS.
- On-time departures75.1%of 419 flights
- Average delay12.1 min
- July 202627▼ 10.0%vs July 2025
- Cancelled1.2%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 24 | 29 | ▲ 20.8% |
| February | 32 | 31 | ▼ 3.1% |
| March | 5 | 31 | ▲ 520.0% |
| April | – | 27 | – |
| May | – | 25 | – |
| June | 26 | 26 | 0.0% |
| July | 30 | 27 | ▼ 10.0% |
| August | 4 | – | – |
| September | – | – | – |
| October | 33 | – | in progress |
| November | 17 | – | – |
| December | 15 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 82.6% | 70.4% | ▼ 14.8% |
| February | 65.6% | 64.5% | ▼ 1.7% |
| March | 60.0% | 90.0% | ▲ 50.0% |
| April | – | 96.3% | – |
| May | – | 100.0% | – |
| June | 100.0% | 57.7% | ▼ 42.3% |
| July | 100.0% | 33.3% | ▼ 66.7% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 72.7% | – | in progress |
| November | 52.9% | – | – |
| December | 80.0% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | – | 0 | – |
| May | – | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| 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 98.8% 414
- Cancelled 1.2% 5
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 |
|---|---|---|---|---|
| DAL LAS Dallas Love Field – Harry Reid International Airport | 1,714 | 20.5 min | 64.4% | 74 |
| BNA DAL Nashville International Airport – Dallas Love Field | 1,000 | 14.5 min | 67.7% | 67 |
| PIT DEN Pittsburgh International Airport – Denver International Airport | 2,071 | -0.6 min | 100.0% | 60 |
| ABQ PHX Albuquerque International Sunport – Phoenix Sky Harbor International Airport | 527 | 33.7 min | 42.0% | 50 |
| SMF BUR Sacramento International Airport – Hollywood Burbank/Bob Hope Airport | 577 | -4.6 min | 97.9% | 49 |
| RIC BWI Richmond International Airport – Baltimore/Washington International Thurgood Marshall Airport | 194 | -0.3 min | 93.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 84.6% | 0 |
| November 2024 | 10 | 10 | 70.0% | 0 |
| December 2024 | 14 | 14 | 35.7% | 0 |
| January 2025 | 24 | 23 | 82.6% | 1 |
| February 2025 | 32 | 32 | 65.6% | 0 |
| March 2025 | 5 | 5 | 60.0% | 0 |
| June 2025 | 26 | 26 | 100.0% | 0 |
| July 2025 | 30 | 30 | 100.0% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 33 | 33 | 72.7% | 0 |
| November 2025 | 17 | 17 | 52.9% | 0 |
| December 2025 | 15 | 15 | 80.0% | 0 |
| January 2026 | 29 | 27 | 70.4% | 2 |
| February 2026 | 31 | 31 | 64.5% | 0 |
| March 2026 | 31 | 30 | 90.0% | 1 |
| April 2026 | 27 | 27 | 96.3% | 0 |
| May 2026 | 25 | 24 | 100.0% | 1 |
| June 2026 | 26 | 26 | 57.7% | 0 |
| July 2026 | 27 | 27 | 33.3% | 0 |