WN2337
WN2337 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Denver to Chicago. Of 721 departures recorded from October 2024 to July 2026, 75.3% left on time, according to the US BTS.
- On-time departures75.3%of 721 flights
- Average delay12.0 min
- July 202631▼ 22.5%vs July 2025
- Cancelled1.3%
- Legs flown under this number31
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 | 23 | 32 | ▲ 39.1% |
| February | 21 | 25 | ▲ 19.0% |
| March | 30 | 27 | ▼ 10.0% |
| April | 36 | 32 | ▼ 11.1% |
| May | 39 | 35 | ▼ 10.3% |
| June | 36 | 30 | ▼ 16.7% |
| July | 40 | 31 | ▼ 22.5% |
| August | 52 | – | – |
| September | 56 | – | – |
| October | 22 | – | in progress |
| November | 52 | – | – |
| December | 38 | – | – |
| Year to date (Jan–Jul) | 225 | 212 | ▼ 5.8% |
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 | 82.6% | 90.0% | ▲ 8.9% |
| February | 70.0% | 80.0% | ▲ 14.3% |
| March | 90.0% | 46.2% | ▼ 48.7% |
| April | 77.8% | 59.4% | ▼ 23.7% |
| May | 71.8% | 54.3% | ▼ 24.4% |
| June | 94.4% | 36.7% | ▼ 61.2% |
| July | 94.9% | 23.3% | ▼ 75.4% |
| August | 80.8% | – | – |
| September | 82.1% | – | – |
| October | 90.9% | – | in progress |
| November | 79.6% | – | – |
| December | 81.6% | – | – |
| Year-to-date average (Jan–Jul) | 83.1% | 55.7% | ▼ 33.0% |
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 | 0 | 2 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 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 98.8% 712
- Cancelled 1.2% 9
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 91.7% | 0 |
| November 2024 | 15 | 15 | 93.3% | 0 |
| December 2024 | 25 | 25 | 80.0% | 0 |
| January 2025 | 23 | 23 | 82.6% | 0 |
| February 2025 | 21 | 20 | 70.0% | 1 |
| March 2025 | 30 | 30 | 90.0% | 0 |
| April 2025 | 36 | 36 | 77.8% | 0 |
| May 2025 | 39 | 39 | 71.8% | 0 |
| June 2025 | 36 | 36 | 94.4% | 0 |
| July 2025 | 40 | 39 | 94.9% | 1 |
| August 2025 | 52 | 52 | 80.8% | 0 |
| September 2025 | 56 | 56 | 82.1% | 0 |
| October 2025 | 22 | 22 | 90.9% | 0 |
| November 2025 | 52 | 49 | 79.6% | 3 |
| December 2025 | 38 | 38 | 81.6% | 0 |
| January 2026 | 32 | 30 | 90.0% | 2 |
| February 2026 | 25 | 25 | 80.0% | 0 |
| March 2026 | 27 | 26 | 46.2% | 1 |
| April 2026 | 32 | 32 | 59.4% | 0 |
| May 2026 | 35 | 35 | 54.3% | 0 |
| June 2026 | 30 | 30 | 36.7% | 0 |
| July 2026 | 31 | 30 | 23.3% | 1 |