WN1397
WN1397 (Southwest Airlines) is a multi-stop service on 38 routes, busiest Phoenix to Chicago. Of 688 departures recorded from October 2024 to July 2026, 82.2% left on time, according to the US BTS.
- On-time departures82.2%of 688 flights
- Average delay9.3 min
- July 20268▼ 84.6%vs July 2025
- Cancelled0.4%
- Legs flown under this number38
according to the US BTS · Oct 12, 2024 → Jul 26, 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 | 46 | 29 | ▼ 37.0% |
| February | 49 | 28 | ▼ 42.9% |
| March | 44 | 31 | ▼ 29.5% |
| April | 41 | 22 | ▼ 46.3% |
| May | 39 | 22 | ▼ 43.6% |
| June | 44 | 9 | ▼ 79.5% |
| July | 52 | 8 | ▼ 84.6% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 35 | – | in progress |
| November | 28 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 315 | 149 | ▼ 52.7% |
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 | 69.6% | 89.3% | ▲ 28.3% |
| February | 87.8% | 66.7% | ▼ 24.0% |
| March | 86.4% | 70.0% | ▼ 18.9% |
| April | 80.5% | 95.5% | ▲ 18.6% |
| May | 84.6% | 86.4% | ▲ 2.1% |
| June | 70.5% | 55.6% | ▼ 21.1% |
| July | 78.9% | 87.5% | ▲ 11.0% |
| August | 96.8% | – | – |
| September | 100.0% | – | – |
| October | 88.6% | – | in progress |
| November | 82.1% | – | – |
| December | 68.2% | – | – |
| Year-to-date average (Jan–Jul) | 79.7% | 78.7% | ▼ 1.3% |
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 | 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 | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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 99.6% 685
- Cancelled 0.4% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 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 | 11.3 min | 73.1% | 67 |
| SAT ELP San Antonio International Airport – El Paso International Airport | 797 | 15.5 min | 80.3% | 61 |
| BOI SMF Boise Air Terminal/Gowen Field – Sacramento International Airport | 703 | -3.5 min | 98.3% | 58 |
| PHL STL Philadelphia International Airport – St. Louis Lambert International Airport | 1,306 | 2.4 min | 86.7% | 47 |
| BOI SAN Boise Air Terminal/Gowen Field – San Diego International Airport | 1,207 | 12.8 min | 78.3% | 46 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 4.5 min | 83.3% | 42 |
| BUR DEN Hollywood Burbank/Bob Hope Airport – Denver International Airport | 1,366 | 6.2 min | 87.5% | 41 |
| MDW ATL Chicago Midway International Airport – Hartsfield Jackson Atlanta International Airport | 952 | 5.4 min | 89.7% | 39 |
| BNA VPS Nashville International Airport – Destin-Fort Walton Beach Airport | 628 | 7.6 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 87.0% | 0 |
| November 2024 | 27 | 27 | 85.2% | 0 |
| December 2024 | 28 | 28 | 85.7% | 0 |
| January 2025 | 46 | 46 | 69.6% | 0 |
| February 2025 | 49 | 49 | 87.8% | 0 |
| March 2025 | 44 | 44 | 86.4% | 0 |
| April 2025 | 41 | 41 | 80.5% | 0 |
| May 2025 | 39 | 39 | 84.6% | 0 |
| June 2025 | 44 | 44 | 70.5% | 0 |
| July 2025 | 52 | 52 | 78.9% | 0 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 35 | 35 | 88.6% | 0 |
| November 2025 | 28 | 28 | 82.1% | 0 |
| December 2025 | 22 | 22 | 68.2% | 0 |
| January 2026 | 29 | 28 | 89.3% | 1 |
| February 2026 | 28 | 27 | 66.7% | 1 |
| March 2026 | 31 | 30 | 70.0% | 1 |
| April 2026 | 22 | 22 | 95.5% | 0 |
| May 2026 | 22 | 22 | 86.4% | 0 |
| June 2026 | 9 | 9 | 55.6% | 0 |
| July 2026 | 8 | 8 | 87.5% | 0 |