WN2579
WN2579 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Phoenix to Las Vegas. Of 581 departures recorded from October 2024 to July 2026, 68.4% left on time, according to the US BTS.
- On-time departures68.4%of 581 flights
- Average delay14.8 min
- July 202617▼ 45.2%vs July 2025
- Cancelled1.4%
- Legs flown under this number27
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 32 | 42 | ▲ 31.3% |
| February | 25 | 22 | ▼ 12.0% |
| March | 42 | 30 | ▼ 28.6% |
| April | 21 | 25 | ▲ 19.0% |
| May | 12 | 27 | ▲ 125.0% |
| June | 29 | 16 | ▼ 44.8% |
| July | 31 | 17 | ▼ 45.2% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 26 | – | in progress |
| November | 47 | – | – |
| December | 63 | – | – |
| Year to date (Jan–Jul) | 192 | 179 | ▼ 6.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 84.4% | 84.2% | ▼ 0.2% |
| February | 76.0% | 81.8% | ▲ 7.7% |
| March | 78.6% | 60.0% | ▼ 23.6% |
| April | 90.5% | 52.0% | ▼ 42.5% |
| May | 58.3% | 51.9% | ▼ 11.1% |
| June | 62.1% | 40.0% | ▼ 35.6% |
| July | 54.8% | 41.2% | ▼ 24.9% |
| August | 85.0% | – | – |
| September | 82.4% | – | – |
| October | 46.2% | – | in progress |
| November | 72.3% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 72.1% | 58.7% | ▼ 18.5% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 4 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 0 | 5 |
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 98.6% 573
- Cancelled 1.4% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX LAS Phoenix Sky Harbor International Airport – Harry Reid International Airport | 411 | 11.7 min | 74.2% | 62 |
| MDW MSY Chicago Midway International Airport – Louis Armstrong New Orleans International Airport | 1,331 | 26.1 min | 55.7% | 61 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 7.5 min | 77.4% | 53 |
| LAS RDU Harry Reid International Airport – Raleigh-Durham International Airport | 3,253 | 11.6 min | 76.7% | 47 |
| DAL MIA Dallas Love Field – Miami International Airport | 1,783 | 17.3 min | 67.4% | 44 |
| OAK PHX Oakland San Francisco Bay Airport – Phoenix Sky Harbor International Airport | 1,039 | 4.0 min | 92.3% | 39 |
| PHX DAL Phoenix Sky Harbor International Airport – Dallas Love Field | 1,412 | 14.3 min | 67.7% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 75.0% | 0 |
| November 2024 | 9 | 9 | 77.8% | 0 |
| December 2024 | 12 | 12 | 50.0% | 0 |
| January 2025 | 32 | 32 | 84.4% | 0 |
| February 2025 | 25 | 25 | 76.0% | 0 |
| March 2025 | 42 | 42 | 78.6% | 0 |
| April 2025 | 21 | 21 | 90.5% | 0 |
| May 2025 | 12 | 12 | 58.3% | 0 |
| June 2025 | 29 | 29 | 62.1% | 0 |
| July 2025 | 31 | 31 | 54.8% | 0 |
| August 2025 | 20 | 20 | 85.0% | 0 |
| September 2025 | 17 | 17 | 82.4% | 0 |
| October 2025 | 26 | 26 | 46.2% | 0 |
| November 2025 | 47 | 47 | 72.3% | 0 |
| December 2025 | 63 | 60 | 70.0% | 3 |
| January 2026 | 42 | 38 | 84.2% | 4 |
| February 2026 | 22 | 22 | 81.8% | 0 |
| March 2026 | 30 | 30 | 60.0% | 0 |
| April 2026 | 25 | 25 | 52.0% | 0 |
| May 2026 | 27 | 27 | 51.9% | 0 |
| June 2026 | 16 | 15 | 40.0% | 1 |
| July 2026 | 17 | 17 | 41.2% | 0 |