WN704
WN704 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Chicago to Washington. Of 739 departures recorded from October 2024 to July 2026, 80.5% left on time, according to the US BTS.
- On-time departures80.5%of 739 flights
- Average delay8.5 min
- July 202648▲ 54.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number27
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 | 36 | ▲ 16.1% |
| February | 28 | 36 | ▲ 28.6% |
| March | 31 | 32 | ▲ 3.2% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 46 | ▲ 53.3% |
| July | 31 | 48 | ▲ 54.8% |
| August | 46 | – | – |
| September | 47 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 212 | 259 | ▲ 22.2% |
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 | 96.4% | 94.4% | ▼ 2.1% |
| February | 75.0% | 97.2% | ▲ 29.6% |
| March | 100.0% | 59.4% | ▼ 40.6% |
| April | 96.7% | 53.3% | ▼ 44.8% |
| May | 96.8% | 48.4% | ▼ 50.0% |
| June | 82.8% | 43.5% | ▼ 47.5% |
| July | 93.6% | 50.0% | ▼ 46.6% |
| August | 80.4% | – | – |
| September | 95.7% | – | – |
| October | 100.0% | – | in progress |
| November | 85.7% | – | – |
| December | 74.1% | – | – |
| Year-to-date average (Jan–Jul) | 91.6% | 63.7% | ▼ 30.4% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 0 | ▼ 100.0% |
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 99.3% 734
- Cancelled 0.7% 5
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 | 26 | 26 | 92.3% | 0 |
| November 2024 | 32 | 32 | 96.9% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 28 | 96.4% | 3 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 31 | 31 | 100.0% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 30 | 29 | 82.8% | 1 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 46 | 46 | 80.4% | 0 |
| September 2025 | 47 | 47 | 95.7% | 0 |
| October 2025 | 31 | 30 | 100.0% | 1 |
| November 2025 | 28 | 28 | 85.7% | 0 |
| December 2025 | 27 | 27 | 74.1% | 0 |
| January 2026 | 36 | 36 | 94.4% | 0 |
| February 2026 | 36 | 36 | 97.2% | 0 |
| March 2026 | 32 | 32 | 59.4% | 0 |
| April 2026 | 30 | 30 | 53.3% | 0 |
| May 2026 | 31 | 31 | 48.4% | 0 |
| June 2026 | 46 | 46 | 43.5% | 0 |
| July 2026 | 48 | 48 | 50.0% | 0 |