WN1904
WN1904 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Denver to El Paso. Of 568 departures recorded from October 2024 to June 2026, 79.8% left on time, according to the US BTS.
- On-time departures79.8%of 568 flights
- Average delay9.4 min
- June 20261▼ 96.0%vs June 2025
- Cancelled0.0%
- Legs flown under this number26
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 29 | 26 | ▼ 10.3% |
| February | 24 | 27 | ▲ 12.5% |
| March | 36 | 4 | ▼ 88.9% |
| April | 38 | 10 | ▼ 73.7% |
| May | 38 | 13 | ▼ 65.8% |
| June | 25 | 1 | ▼ 96.0% |
| July | 21 | – | – |
| August | 46 | – | – |
| September | 46 | – | – |
| October | 27 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jun) | 190 | 81 | ▼ 57.4% |
according to the US BTS · October 2024 → June 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 79.3% | 92.3% | ▲ 16.4% |
| February | 75.0% | 96.3% | ▲ 28.4% |
| March | 91.7% | 50.0% | ▼ 45.5% |
| April | 92.1% | 10.0% | ▼ 89.1% |
| May | 92.1% | 0.0% | ▼ 100.0% |
| June | 60.0% | 100.0% | ▲ 66.7% |
| July | 66.7% | – | – |
| August | 71.7% | – | – |
| September | 97.8% | – | – |
| October | 77.8% | – | in progress |
| November | 82.8% | – | – |
| December | 71.0% | – | – |
| Year-to-date average (Jan–Jun) | 81.7% | 58.1% | ▼ 28.9% |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jun) | 0 | 0 |
according to the US BTS · October 2024 → June 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 100.0% 568
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 1, 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 |
|---|---|---|---|---|
| DEN ELP Denver International Airport – El Paso International Airport | 908 | 9.9 min | 75.0% | 108 |
| BWI SAT Baltimore/Washington International Thurgood Marshall Airport – San Antonio International Airport | 2,262 | 13.8 min | 75.0% | 64 |
| BWI ROC Baltimore/Washington International Thurgood Marshall Airport – Frederick Douglass Greater Rochester International Airport | 447 | 5.1 min | 86.2% | 58 |
| HOU MCO William P. Hobby Airport – Orlando International Airport | 1,364 | 1.3 min | 94.2% | 52 |
| MDW BNA Chicago Midway International Airport – Nashville International Airport | 636 | 0.2 min | 94.0% | 50 |
| SAN MDW San Diego International Airport – Chicago Midway International Airport | 2,776 | 0.2 min | 90.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 43 | 43 | 83.7% | 0 |
| December 2024 | 34 | 34 | 76.5% | 0 |
| January 2025 | 29 | 29 | 79.3% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 36 | 36 | 91.7% | 0 |
| April 2025 | 38 | 38 | 92.1% | 0 |
| May 2025 | 38 | 38 | 92.1% | 0 |
| June 2025 | 25 | 25 | 60.0% | 0 |
| July 2025 | 21 | 21 | 66.7% | 0 |
| August 2025 | 46 | 46 | 71.7% | 0 |
| September 2025 | 46 | 46 | 97.8% | 0 |
| October 2025 | 27 | 27 | 77.8% | 0 |
| November 2025 | 29 | 29 | 82.8% | 0 |
| December 2025 | 31 | 31 | 71.0% | 0 |
| January 2026 | 26 | 26 | 92.3% | 0 |
| February 2026 | 27 | 27 | 96.3% | 0 |
| March 2026 | 4 | 4 | 50.0% | 0 |
| April 2026 | 10 | 10 | 10.0% | 0 |
| May 2026 | 13 | 13 | 0.0% | 0 |
| June 2026 | 1 | 1 | 100.0% | 0 |