WN1390
WN1390 (Southwest Airlines) is a multi-stop service on 32 routes, busiest St Louis to Philadelphia. Of 654 departures recorded from October 2024 to July 2026, 79.1% left on time, according to the US BTS.
- On-time departures79.1%of 654 flights
- Average delay8.7 min
- July 202622▲ 0.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number32
Recorded departures by month
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 | 31 | 44 | ▲ 41.9% |
| February | 28 | 42 | ▲ 50.0% |
| March | 31 | 25 | ▼ 19.4% |
| April | 27 | 38 | ▲ 40.7% |
| May | 27 | 45 | ▲ 66.7% |
| June | 21 | 23 | ▲ 9.5% |
| July | 22 | 22 | 0.0% |
| August | 25 | – | – |
| September | 26 | – | – |
| October | 39 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 187 | 239 | ▲ 27.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 72.4% | 95.5% | ▲ 31.8% |
| February | 89.3% | 82.5% | ▼ 7.6% |
| March | 90.3% | 64.0% | ▼ 29.1% |
| April | 76.9% | 71.1% | ▼ 7.6% |
| May | 74.1% | 84.4% | ▲ 14.0% |
| June | 81.0% | 52.2% | ▼ 35.6% |
| July | 95.5% | 27.3% | ▼ 71.4% |
| August | 84.0% | – | – |
| September | 92.3% | – | – |
| October | 92.3% | – | in progress |
| November | 70.0% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jul) | 82.8% | 68.1% | ▼ 17.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.9% 647
- Cancelled 1.1% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL PHL St. Louis Lambert International Airport – Philadelphia International Airport | 1,306 | 7.4 min | 82.2% | 104 |
| MCO MCI Orlando International Airport – Kansas City International Airport | 1,726 | 16.4 min | 65.1% | 64 |
| LGB SJC Long Beach International Airport – Mineta San Jose International Airport | 522 | 5.4 min | 79.3% | 58 |
| LGB RNO Long Beach International Airport – Reno Tahoe International Airport | 648 | 0.3 min | 90.4% | 53 |
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | 11.5 min | 86.0% | 50 |
| LAS HOU Harry Reid International Airport – William P. Hobby Airport | 1,985 | 4.9 min | 76.0% | 50 |
| TPA MDW Tampa International Airport – Chicago Midway International Airport | 1,607 | 2.0 min | 90.5% | 42 |
| STL LAX St. Louis Lambert International Airport – Los Angeles International Airport | 2,557 | 0.7 min | 87.5% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 27 | 26 | 88.5% | 1 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 31 | 29 | 72.4% | 2 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 27 | 26 | 76.9% | 1 |
| May 2025 | 27 | 27 | 74.1% | 0 |
| June 2025 | 21 | 21 | 81.0% | 0 |
| July 2025 | 22 | 22 | 95.5% | 0 |
| August 2025 | 25 | 25 | 84.0% | 0 |
| September 2025 | 26 | 26 | 92.3% | 0 |
| October 2025 | 39 | 39 | 92.3% | 0 |
| November 2025 | 30 | 30 | 70.0% | 0 |
| December 2025 | 31 | 30 | 60.0% | 1 |
| January 2026 | 44 | 44 | 95.5% | 0 |
| February 2026 | 42 | 40 | 82.5% | 2 |
| March 2026 | 25 | 25 | 64.0% | 0 |
| April 2026 | 38 | 38 | 71.1% | 0 |
| May 2026 | 45 | 45 | 84.4% | 0 |
| June 2026 | 23 | 23 | 52.2% | 0 |
| July 2026 | 22 | 22 | 27.3% | 0 |