WN2539
WN2539 (Southwest Airlines) is a multi-stop service on 32 routes, busiest New Orleans to San Diego. Of 631 departures recorded from October 2024 to July 2026, 66.4% left on time, according to the US BTS.
- On-time departures66.4%of 631 flights
- Average delay16.2 min
- July 202617▼ 69.1%vs July 2025
- Cancelled0.6%
- Legs flown under this number32
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 | 11 | 10 | ▼ 9.1% |
| February | 9 | 11 | ▲ 22.2% |
| March | 51 | 28 | ▼ 45.1% |
| April | 44 | 30 | ▼ 31.8% |
| May | 39 | 31 | ▼ 20.5% |
| June | 56 | 18 | ▼ 67.9% |
| July | 55 | 17 | ▼ 69.1% |
| August | 37 | – | – |
| September | 34 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 265 | 145 | ▼ 45.3% |
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 | 81.8% | 60.0% | ▼ 26.7% |
| February | 100.0% | 100.0% | 0.0% |
| March | 52.9% | 84.6% | ▲ 59.8% |
| April | 56.8% | 53.3% | ▼ 6.1% |
| May | 42.1% | 38.7% | ▼ 8.1% |
| June | 73.2% | 61.1% | ▼ 16.5% |
| July | 64.8% | 52.9% | ▼ 18.3% |
| August | 59.5% | – | – |
| September | 73.5% | – | – |
| October | 90.3% | – | in progress |
| November | 73.3% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 67.4% | 64.4% | ▼ 4.5% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.4% 627
- Cancelled 0.6% 4
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSY SAN Louis Armstrong New Orleans International Airport – San Diego International Airport | 2,568 | 14.6 min | 65.6% | 64 |
| MDW DEN Chicago Midway International Airport – Denver International Airport | 1,438 | 31.8 min | 41.4% | 58 |
| DEN AUS Denver International Airport – Austin Bergstrom International Airport | 1,249 | 24.0 min | 54.4% | 58 |
| LAS LAX Harry Reid International Airport – Los Angeles International Airport | 380 | 15.3 min | 57.7% | 52 |
| PDX DEN Portland International Airport – Denver International Airport | 1,592 | 21.7 min | 57.9% | 38 |
| PHX MDW Phoenix Sky Harbor International Airport – Chicago Midway International Airport | 2,319 | 7.8 min | 87.1% | 33 |
| PHX SEA Phoenix Sky Harbor International Airport – Seattle–Tacoma International Airport | 1,782 | 3.5 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 28 | 28 | 85.7% | 0 |
| November 2024 | 18 | 18 | 83.3% | 0 |
| December 2024 | 12 | 12 | 91.7% | 0 |
| January 2025 | 11 | 11 | 81.8% | 0 |
| February 2025 | 9 | 9 | 100.0% | 0 |
| March 2025 | 51 | 51 | 52.9% | 0 |
| April 2025 | 44 | 44 | 56.8% | 0 |
| May 2025 | 39 | 38 | 42.1% | 1 |
| June 2025 | 56 | 56 | 73.2% | 0 |
| July 2025 | 55 | 54 | 64.8% | 1 |
| August 2025 | 37 | 37 | 59.5% | 0 |
| September 2025 | 34 | 34 | 73.5% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 73.3% | 0 |
| December 2025 | 31 | 31 | 64.5% | 0 |
| January 2026 | 10 | 10 | 60.0% | 0 |
| February 2026 | 11 | 11 | 100.0% | 0 |
| March 2026 | 28 | 26 | 84.6% | 2 |
| April 2026 | 30 | 30 | 53.3% | 0 |
| May 2026 | 31 | 31 | 38.7% | 0 |
| June 2026 | 18 | 18 | 61.1% | 0 |
| July 2026 | 17 | 17 | 52.9% | 0 |