WN1001
WN1001 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Chicago to Philadelphia. Of 745 departures recorded from October 2024 to July 2026, 77.4% left on time, according to the US BTS.
- On-time departures77.4%of 745 flights
- Average delay10.2 min
- July 202627▲ 0.0%vs July 2025
- Cancelled2.0%
- Legs flown under this number34
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 | 35 | 30 | ▼ 14.3% |
| February | 36 | 38 | ▲ 5.6% |
| March | 26 | 44 | ▲ 69.2% |
| April | 37 | 33 | ▼ 10.8% |
| May | 45 | 31 | ▼ 31.1% |
| June | 27 | 26 | ▼ 3.7% |
| July | 27 | 27 | 0.0% |
| August | 19 | – | – |
| September | 17 | – | – |
| October | 60 | – | in progress |
| November | 22 | – | – |
| December | 17 | – | – |
| Year to date (Jan–Jul) | 233 | 229 | ▼ 1.7% |
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 | 87.5% | 84.6% | ▼ 3.3% |
| February | 86.1% | 67.6% | ▼ 21.5% |
| March | 100.0% | 40.9% | ▼ 59.1% |
| April | 81.1% | 75.8% | ▼ 6.6% |
| May | 81.8% | 100.0% | ▲ 22.2% |
| June | 88.9% | 61.5% | ▼ 30.8% |
| July | 85.2% | 77.8% | ▼ 8.7% |
| August | 47.4% | – | – |
| September | 70.6% | – | – |
| October | 73.3% | – | in progress |
| November | 61.9% | – | – |
| December | 64.7% | – | – |
| Year-to-date average (Jan–Jul) | 87.2% | 72.6% | ▼ 16.8% |
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 | 3 | 4 | ▲ 33.3% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 1 | 0.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 6 | ▲ 50.0% |
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 98.0% 730
- Cancelled 2.0% 15
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 31 | 28 | 92.9% | 3 |
| November 2024 | 66 | 65 | 93.9% | 1 |
| December 2024 | 51 | 51 | 66.7% | 0 |
| January 2025 | 35 | 32 | 87.5% | 3 |
| February 2025 | 36 | 36 | 86.1% | 0 |
| March 2025 | 26 | 26 | 100.0% | 0 |
| April 2025 | 37 | 37 | 81.1% | 0 |
| May 2025 | 45 | 44 | 81.8% | 1 |
| June 2025 | 27 | 27 | 88.9% | 0 |
| July 2025 | 27 | 27 | 85.2% | 0 |
| August 2025 | 19 | 19 | 47.4% | 0 |
| September 2025 | 17 | 17 | 70.6% | 0 |
| October 2025 | 60 | 60 | 73.3% | 0 |
| November 2025 | 22 | 21 | 61.9% | 1 |
| December 2025 | 17 | 17 | 64.7% | 0 |
| January 2026 | 30 | 26 | 84.6% | 4 |
| February 2026 | 38 | 37 | 67.6% | 1 |
| March 2026 | 44 | 44 | 40.9% | 0 |
| April 2026 | 33 | 33 | 75.8% | 0 |
| May 2026 | 31 | 30 | 100.0% | 1 |
| June 2026 | 26 | 26 | 61.5% | 0 |
| July 2026 | 27 | 27 | 77.8% | 0 |