WN1589
WN1589 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Phoenix to Chicago. Of 667 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 667 flights
- Average delay16.3 min
- July 202627▲ 42.1%vs July 2025
- Cancelled0.3%
- 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 | 32 | 30 | ▼ 6.3% |
| February | 33 | 25 | ▼ 24.2% |
| March | 36 | 38 | ▲ 5.6% |
| April | 31 | 36 | ▲ 16.1% |
| May | 30 | 34 | ▲ 13.3% |
| June | 18 | 28 | ▲ 55.6% |
| July | 19 | 27 | ▲ 42.1% |
| August | 49 | – | – |
| September | 56 | – | – |
| October | 31 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 199 | 218 | ▲ 9.5% |
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 | 90.6% | 80.0% | ▼ 11.7% |
| February | 87.9% | 84.0% | ▼ 4.4% |
| March | 91.7% | 75.0% | ▼ 18.2% |
| April | 74.2% | 61.1% | ▼ 17.6% |
| May | 63.3% | 47.1% | ▼ 25.7% |
| June | 77.8% | 32.1% | ▼ 58.7% |
| July | 94.7% | 25.9% | ▼ 72.6% |
| August | 75.5% | – | – |
| September | 98.2% | – | – |
| October | 32.3% | – | in progress |
| November | 94.7% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 82.9% | 57.9% | ▼ 30.2% |
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 | 2 | – |
| 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) | 0 | 2 |
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 99.7% 665
- Cancelled 0.3% 2
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 |
|---|---|---|---|---|
| PHX MDW Phoenix Sky Harbor International Airport – Chicago Midway International Airport | 2,319 | 2.7 min | 95.3% | 85 |
| DEN ECP Denver International Airport – Northwest Florida Beaches International Airport | 2,010 | 20.7 min | 68.4% | 57 |
| DEN SAN Denver International Airport – San Diego International Airport | 1,371 | 5.6 min | 85.5% | 55 |
| ECP BNA Northwest Florida Beaches International Airport – Nashville International Airport | 647 | 3.4 min | 91.8% | 49 |
| DEN MCI Denver International Airport – Kansas City International Airport | 855 | 65.8 min | 14.3% | 42 |
| DCA MCI Ronald Reagan Washington National Airport – Kansas City International Airport | 1,524 | 28.4 min | 54.8% | 42 |
| LAS DEN Harry Reid International Airport – Denver International Airport | 1,009 | 13.0 min | 77.8% | 36 |
| BOS BNA Boston Logan International Airport – Nashville International Airport | 1,514 | 61.2 min | 32.3% | 31 |
| AUS ECP Austin Bergstrom International Airport – Northwest Florida Beaches International Airport | 1,139 | 6.4 min | 80.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 30 | 30 | 70.0% | 0 |
| January 2025 | 32 | 32 | 90.6% | 0 |
| February 2025 | 33 | 33 | 87.9% | 0 |
| March 2025 | 36 | 36 | 91.7% | 0 |
| April 2025 | 31 | 31 | 74.2% | 0 |
| May 2025 | 30 | 30 | 63.3% | 0 |
| June 2025 | 18 | 18 | 77.8% | 0 |
| July 2025 | 19 | 19 | 94.7% | 0 |
| August 2025 | 49 | 49 | 75.5% | 0 |
| September 2025 | 56 | 56 | 98.2% | 0 |
| October 2025 | 31 | 31 | 32.3% | 0 |
| November 2025 | 19 | 19 | 94.7% | 0 |
| December 2025 | 15 | 15 | 66.7% | 0 |
| January 2026 | 30 | 30 | 80.0% | 0 |
| February 2026 | 25 | 25 | 84.0% | 0 |
| March 2026 | 38 | 36 | 75.0% | 2 |
| April 2026 | 36 | 36 | 61.1% | 0 |
| May 2026 | 34 | 34 | 47.1% | 0 |
| June 2026 | 28 | 28 | 32.1% | 0 |
| July 2026 | 27 | 27 | 25.9% | 0 |