WN1584
WN1584 (Southwest Airlines) is a multi-stop service on 31 routes, busiest New York to Denver. Of 676 departures recorded from October 2024 to July 2026, 76.0% left on time, according to the US BTS.
- On-time departures76.0%of 676 flights
- Average delay13.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.3%
- 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 | 35 | 23 | ▼ 34.3% |
| February | 33 | 32 | ▼ 3.0% |
| March | 36 | 30 | ▼ 16.7% |
| April | 45 | 12 | ▼ 73.3% |
| May | 49 | 9 | ▼ 81.6% |
| June | 32 | 27 | ▼ 15.6% |
| July | 31 | 31 | 0.0% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 50 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 261 | 164 | ▼ 37.2% |
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 | 57.1% | 79.0% | ▲ 38.2% |
| February | 75.0% | 64.5% | ▼ 14.0% |
| March | 83.3% | 90.0% | ▲ 8.0% |
| April | 97.8% | 83.3% | ▼ 14.8% |
| May | 81.6% | 66.7% | ▼ 18.3% |
| June | 68.8% | 81.5% | ▲ 18.5% |
| July | 74.2% | 93.6% | ▲ 26.1% |
| August | 85.2% | – | – |
| September | 69.2% | – | – |
| October | 72.0% | – | in progress |
| November | 70.0% | – | – |
| December | 58.1% | – | – |
| Year-to-date average (Jan–Jul) | 76.8% | 79.8% | ▲ 3.8% |
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 | 4 | – |
| February | 1 | 1 | 0.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 5 | ▲ 400.0% |
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 98.7% 667
- Cancelled 1.3% 9
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 |
|---|---|---|---|---|
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 14.7 min | 74.7% | 85 |
| MCO SAT Orlando International Airport – San Antonio International Airport | 1,672 | 26.9 min | 60.9% | 64 |
| BWI BDL Baltimore/Washington International Thurgood Marshall Airport – Bradley International Airport | 455 | 17.3 min | 72.1% | 61 |
| DEN MCI Denver International Airport – Kansas City International Airport | 855 | 0.5 min | 89.5% | 57 |
| SJC LGB Mineta San Jose International Airport – Long Beach International Airport | 522 | 11.0 min | 78.0% | 50 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 0.8 min | 92.0% | 50 |
| DEN SJC Denver International Airport – Mineta San Jose International Airport | 1,522 | 7.9 min | 90.9% | 33 |
| SDF MCO Louisville Muhammad Ali International Airport – Orlando International Airport | 1,158 | 16.1 min | 74.1% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 76.7% | 0 |
| December 2024 | 37 | 34 | 55.9% | 3 |
| January 2025 | 35 | 35 | 57.1% | 0 |
| February 2025 | 33 | 32 | 75.0% | 1 |
| March 2025 | 36 | 36 | 83.3% | 0 |
| April 2025 | 45 | 45 | 97.8% | 0 |
| May 2025 | 49 | 49 | 81.6% | 0 |
| June 2025 | 32 | 32 | 68.8% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 27 | 27 | 85.2% | 0 |
| September 2025 | 26 | 26 | 69.2% | 0 |
| October 2025 | 50 | 50 | 72.0% | 0 |
| November 2025 | 30 | 30 | 70.0% | 0 |
| December 2025 | 31 | 31 | 58.1% | 0 |
| January 2026 | 23 | 19 | 79.0% | 4 |
| February 2026 | 32 | 31 | 64.5% | 1 |
| March 2026 | 30 | 30 | 90.0% | 0 |
| April 2026 | 12 | 12 | 83.3% | 0 |
| May 2026 | 9 | 9 | 66.7% | 0 |
| June 2026 | 27 | 27 | 81.5% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |