WN2596
WN2596 (Southwest Airlines) is a multi-stop service on 30 routes, busiest St Louis to Denver. Of 539 departures recorded from October 2024 to July 2026, 86.2% left on time, according to the US BTS.
- On-time departures86.2%of 539 flights
- Average delay6.7 min
- July 20268▼ 77.1%vs July 2025
- Cancelled0.4%
- Legs flown under this number30
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 | 29 | 22 | ▼ 24.1% |
| February | 28 | 12 | ▼ 57.1% |
| March | 27 | 31 | ▲ 14.8% |
| April | 26 | 17 | ▼ 34.6% |
| May | 26 | 5 | ▼ 80.8% |
| June | 34 | 8 | ▼ 76.5% |
| July | 35 | 8 | ▼ 77.1% |
| August | 32 | – | – |
| September | 30 | – | – |
| October | 32 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 205 | 103 | ▼ 49.8% |
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 | 92.9% | 90.9% | ▼ 2.1% |
| February | 96.4% | 100.0% | ▲ 3.7% |
| March | 92.6% | 54.8% | ▼ 40.8% |
| April | 65.4% | 100.0% | ▲ 53.0% |
| May | 72.0% | 60.0% | ▼ 16.7% |
| June | 88.2% | 25.0% | ▼ 71.7% |
| July | 94.3% | 62.5% | ▼ 33.7% |
| August | 100.0% | – | – |
| September | 93.3% | – | – |
| October | 87.5% | – | in progress |
| November | 93.1% | – | – |
| December | 83.9% | – | – |
| Year-to-date average (Jan–Jul) | 86.0% | 70.5% | ▼ 18.0% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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 99.6% 537
- Cancelled 0.4% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 0.2 min | 95.1% | 103 |
| BUF LAS Buffalo Niagara International Airport – Harry Reid International Airport | 3,189 | 6.6 min | 95.1% | 61 |
| PHX SAT Phoenix Sky Harbor International Airport – San Antonio International Airport | 1,354 | 1.8 min | 88.1% | 59 |
| IND DAL Indianapolis International Airport – Dallas Love Field | 1,215 | -0.7 min | 96.5% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 33 | 33 | 90.9% | 0 |
| November 2024 | 18 | 18 | 83.3% | 0 |
| December 2024 | 26 | 26 | 96.2% | 0 |
| January 2025 | 29 | 28 | 92.9% | 1 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 27 | 27 | 92.6% | 0 |
| April 2025 | 26 | 26 | 65.4% | 0 |
| May 2025 | 26 | 25 | 72.0% | 1 |
| June 2025 | 34 | 34 | 88.2% | 0 |
| July 2025 | 35 | 35 | 94.3% | 0 |
| August 2025 | 32 | 32 | 100.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 32 | 32 | 87.5% | 0 |
| November 2025 | 29 | 29 | 93.1% | 0 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 22 | 22 | 90.9% | 0 |
| February 2026 | 12 | 12 | 100.0% | 0 |
| March 2026 | 31 | 31 | 54.8% | 0 |
| April 2026 | 17 | 17 | 100.0% | 0 |
| May 2026 | 5 | 5 | 60.0% | 0 |
| June 2026 | 8 | 8 | 25.0% | 0 |
| July 2026 | 8 | 8 | 62.5% | 0 |