WN1891
WN1891 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Denver to Pittsburgh. Of 634 departures recorded from October 2024 to July 2026, 75.6% left on time, according to the US BTS.
- On-time departures75.6%of 634 flights
- Average delay14.7 min
- July 202615▼ 57.1%vs July 2025
- Cancelled1.0%
- Legs flown under this number31
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 | 26 | 27 | ▲ 3.8% |
| February | 19 | 13 | ▼ 31.6% |
| March | 29 | 37 | ▲ 27.6% |
| April | 29 | 24 | ▼ 17.2% |
| May | 30 | 23 | ▼ 23.3% |
| June | 34 | 13 | ▼ 61.8% |
| July | 35 | 15 | ▼ 57.1% |
| August | 24 | – | – |
| September | 21 | – | – |
| October | 47 | – | in progress |
| November | 39 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 202 | 152 | ▼ 24.8% |
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 | 80.8% | 96.3% | ▲ 19.2% |
| February | 52.6% | 76.9% | ▲ 46.2% |
| March | 89.7% | 40.5% | ▼ 54.8% |
| April | 72.4% | 91.7% | ▲ 26.6% |
| May | 48.3% | 91.3% | ▲ 89.1% |
| June | 40.6% | 100.0% | ▲ 146.1% |
| July | 36.4% | 93.3% | ▲ 156.7% |
| August | 79.2% | – | – |
| September | 100.0% | – | – |
| October | 89.4% | – | in progress |
| November | 89.7% | – | – |
| December | 77.8% | – | – |
| Year-to-date average (Jan–Jul) | 60.1% | 84.3% | ▲ 40.2% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 2 | 1 | ▼ 50.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
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 99.1% 628
- Cancelled 0.9% 6
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 PIT Denver International Airport – Pittsburgh International Airport | 2,071 | 15.8 min | 68.9% | 61 |
| DEN ALB Denver International Airport – Albany International Airport | 2,584 | 59.8 min | 38.6% | 61 |
| DAL BNA Dallas Love Field – Nashville International Airport | 1,000 | 23.4 min | 54.6% | 56 |
| MHT BWI Manchester-Boston Regional Airport – Baltimore/Washington International Thurgood Marshall Airport | 606 | 3.3 min | 84.4% | 45 |
| CRP HOU Corpus Christi International Airport – William P. Hobby Airport | 301 | 20.6 min | 86.7% | 45 |
| SJC PDX Mineta San Jose International Airport – Portland International Airport | 916 | -1.4 min | 95.0% | 40 |
| RDU HOU Raleigh-Durham International Airport – William P. Hobby Airport | 1,688 | 1.5 min | 92.5% | 40 |
| LAS SJC Harry Reid International Airport – Mineta San Jose International Airport | 620 | -2.6 min | 97.0% | 33 |
| HOU OKC William P. Hobby Airport – OKC Will Rogers World Airport | 675 | 1.9 min | 90.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 85.0% | 0 |
| November 2024 | 32 | 32 | 84.4% | 0 |
| December 2024 | 32 | 32 | 78.1% | 0 |
| January 2025 | 26 | 26 | 80.8% | 0 |
| February 2025 | 19 | 19 | 52.6% | 0 |
| March 2025 | 29 | 29 | 89.7% | 0 |
| April 2025 | 29 | 29 | 72.4% | 0 |
| May 2025 | 30 | 29 | 48.3% | 1 |
| June 2025 | 34 | 32 | 40.6% | 2 |
| July 2025 | 35 | 33 | 36.4% | 2 |
| August 2025 | 24 | 24 | 79.2% | 0 |
| September 2025 | 21 | 21 | 100.0% | 0 |
| October 2025 | 47 | 47 | 89.4% | 0 |
| November 2025 | 39 | 39 | 89.7% | 0 |
| December 2025 | 45 | 45 | 77.8% | 0 |
| January 2026 | 27 | 27 | 96.3% | 0 |
| February 2026 | 13 | 13 | 76.9% | 0 |
| March 2026 | 37 | 37 | 40.5% | 0 |
| April 2026 | 24 | 24 | 91.7% | 0 |
| May 2026 | 23 | 23 | 91.3% | 0 |
| June 2026 | 13 | 12 | 100.0% | 1 |
| July 2026 | 15 | 15 | 93.3% | 0 |