WN1688
WN1688 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Denver to Houston. Of 689 departures recorded from October 2024 to July 2026, 75.0% left on time, according to the US BTS.
- On-time departures75.0%of 689 flights
- Average delay15.4 min
- July 202624▼ 22.6%vs July 2025
- Cancelled0.6%
- Legs flown under this number30
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 26 | ▼ 18.8% |
| February | 26 | 27 | ▲ 3.8% |
| March | 31 | 43 | ▲ 38.7% |
| April | 40 | 43 | ▲ 7.5% |
| May | 50 | 44 | ▼ 12.0% |
| June | 31 | 23 | ▼ 25.8% |
| July | 31 | 24 | ▼ 22.6% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 13 | – | in progress |
| November | 27 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 241 | 230 | ▼ 4.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 90.3% | 88.5% | ▼ 2.1% |
| February | 69.2% | 100.0% | ▲ 44.4% |
| March | 87.1% | 64.3% | ▼ 26.2% |
| April | 97.5% | 76.7% | ▼ 21.3% |
| May | 88.0% | 36.4% | ▼ 58.7% |
| June | 54.8% | 34.8% | ▼ 36.6% |
| July | 64.5% | 45.8% | ▼ 29.0% |
| August | 81.5% | – | – |
| September | 80.8% | – | – |
| October | 92.3% | – | in progress |
| November | 74.1% | – | – |
| December | 67.9% | – | – |
| Year-to-date average (Jan–Jul) | 78.8% | 63.8% | ▼ 19.0% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.4% 685
- Cancelled 0.6% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN HOU Denver International Airport – William P. Hobby Airport | 1,422 | 11.1 min | 78.9% | 91 |
| FLL DEN Fort Lauderdale Hollywood International Airport – Denver International Airport | 2,739 | 30.8 min | 56.7% | 60 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 35.4 min | 50.9% | 57 |
| ELP AUS El Paso International Airport – Austin Bergstrom International Airport | 849 | 0.4 min | 96.2% | 53 |
| MHT BWI Manchester-Boston Regional Airport – Baltimore/Washington International Thurgood Marshall Airport | 606 | 11.7 min | 81.0% | 42 |
| DEN PIT Denver International Airport – Pittsburgh International Airport | 2,071 | 47.6 min | 35.7% | 42 |
| SJC OGG Mineta San Jose International Airport – Kahului International Airport | 3,788 | 2.3 min | 90.9% | 33 |
| STL ICT St. Louis Lambert International Airport – Wichita Dwight D. Eisenhower National Airport | 629 | 1.2 min | 93.8% | 32 |
| IND RSW Indianapolis International Airport – Southwest Florida International Airport | 1,525 | 47.2 min | 48.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 95.2% | 0 |
| November 2024 | 31 | 31 | 87.1% | 0 |
| December 2024 | 44 | 44 | 81.8% | 0 |
| January 2025 | 32 | 31 | 90.3% | 1 |
| February 2025 | 26 | 26 | 69.2% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 40 | 40 | 97.5% | 0 |
| May 2025 | 50 | 50 | 88.0% | 0 |
| June 2025 | 31 | 31 | 54.8% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 27 | 27 | 81.5% | 0 |
| September 2025 | 26 | 26 | 80.8% | 0 |
| October 2025 | 13 | 13 | 92.3% | 0 |
| November 2025 | 27 | 27 | 74.1% | 0 |
| December 2025 | 29 | 28 | 67.9% | 1 |
| January 2026 | 26 | 26 | 88.5% | 0 |
| February 2026 | 27 | 26 | 100.0% | 1 |
| March 2026 | 43 | 42 | 64.3% | 1 |
| April 2026 | 43 | 43 | 76.7% | 0 |
| May 2026 | 44 | 44 | 36.4% | 0 |
| June 2026 | 23 | 23 | 34.8% | 0 |
| July 2026 | 24 | 24 | 45.8% | 0 |