WN1991
WN1991 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Phoenix to Denver. Of 767 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 767 flights
- Average delay12.6 min
- July 202633▼ 32.7%vs July 2025
- Cancelled0.5%
- 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 | 24 | 52 | ▲ 116.7% |
| February | 20 | 37 | ▲ 85.0% |
| March | 32 | 33 | ▲ 3.1% |
| April | 31 | 43 | ▲ 38.7% |
| May | 31 | 48 | ▲ 54.8% |
| June | 44 | 28 | ▼ 36.4% |
| July | 49 | 33 | ▼ 32.7% |
| August | 39 | – | – |
| September | 38 | – | – |
| October | 31 | – | in progress |
| November | 36 | – | – |
| December | 44 | – | – |
| Year to date (Jan–Jul) | 231 | 274 | ▲ 18.6% |
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 | 79.2% | 64.7% | ▼ 18.3% |
| February | 85.0% | 46.0% | ▼ 45.9% |
| March | 68.8% | 62.5% | ▼ 9.1% |
| April | 90.0% | 62.8% | ▼ 30.2% |
| May | 100.0% | 62.5% | ▼ 37.5% |
| June | 76.7% | 71.4% | ▼ 6.9% |
| July | 73.5% | 72.7% | ▼ 1.0% |
| August | 82.1% | – | – |
| September | 81.6% | – | – |
| October | 93.6% | – | in progress |
| November | 72.2% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 81.9% | 63.2% | ▼ 22.8% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.5% 763
- Cancelled 0.5% 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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 9.4 min | 79.8% | 109 |
| ABQ HOU Albuquerque International Sunport – William P. Hobby Airport | 1,221 | 10.8 min | 78.3% | 61 |
| SAN HNL San Diego International Airport – Daniel K. Inouye International Airport | 4,201 | -2.0 min | 98.3% | 58 |
| BZN MDW Bozeman Yellowstone International Airport – Chicago Midway International Airport | 1,923 | 7.0 min | 86.0% | 57 |
| HOU PHX William P. Hobby Airport – Phoenix Sky Harbor International Airport | 1,638 | 18.9 min | 54.0% | 50 |
| DEN LAX Denver International Airport – Los Angeles International Airport | 1,385 | 26.0 min | 55.3% | 47 |
| LAS SAN Harry Reid International Airport – San Diego International Airport | 417 | 6.5 min | 84.4% | 46 |
| MCO ORD Orlando International Airport – Chicago O'Hare International Airport | 1,620 | 1.7 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 83.3% | 0 |
| November 2024 | 27 | 27 | 92.6% | 0 |
| December 2024 | 23 | 23 | 65.2% | 0 |
| January 2025 | 24 | 24 | 79.2% | 0 |
| February 2025 | 20 | 20 | 85.0% | 0 |
| March 2025 | 32 | 32 | 68.8% | 0 |
| April 2025 | 31 | 30 | 90.0% | 1 |
| May 2025 | 31 | 31 | 100.0% | 0 |
| June 2025 | 44 | 43 | 76.7% | 1 |
| July 2025 | 49 | 49 | 73.5% | 0 |
| August 2025 | 39 | 39 | 82.1% | 0 |
| September 2025 | 38 | 38 | 81.6% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 36 | 36 | 72.2% | 0 |
| December 2025 | 44 | 44 | 63.6% | 0 |
| January 2026 | 52 | 51 | 64.7% | 1 |
| February 2026 | 37 | 37 | 46.0% | 0 |
| March 2026 | 33 | 32 | 62.5% | 1 |
| April 2026 | 43 | 43 | 62.8% | 0 |
| May 2026 | 48 | 48 | 62.5% | 0 |
| June 2026 | 28 | 28 | 71.4% | 0 |
| July 2026 | 33 | 33 | 72.7% | 0 |