WN104
WN104 (Southwest Airlines) is a multi-stop service on 39 routes, busiest Detroit to Baltimore. Of 718 departures recorded from October 2024 to July 2026, 77.4% left on time, according to the US BTS.
- On-time departures77.4%of 718 flights
- Average delay13.4 min
- July 202633▲ 83.3%vs July 2025
- Cancelled1.0%
- Legs flown under this number39
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 | 33 | 36 | ▲ 9.1% |
| February | 28 | 35 | ▲ 25.0% |
| March | 37 | 32 | ▼ 13.5% |
| April | 61 | 19 | ▼ 68.9% |
| May | 71 | 18 | ▼ 74.6% |
| June | 23 | 28 | ▲ 21.7% |
| July | 18 | 33 | ▲ 83.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 31 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 271 | 201 | ▼ 25.8% |
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 | 90.6% | 60.0% | ▼ 33.8% |
| February | 92.9% | 71.4% | ▼ 23.1% |
| March | 94.6% | 58.1% | ▼ 38.6% |
| April | 80.0% | 84.2% | ▲ 5.3% |
| May | 90.0% | 100.0% | ▲ 11.1% |
| June | 87.0% | 46.4% | ▼ 46.6% |
| July | 94.4% | 24.2% | ▼ 74.3% |
| August | 87.1% | – | – |
| September | 73.3% | – | – |
| October | 96.8% | – | in progress |
| November | 62.1% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 89.9% | 63.5% | ▼ 29.4% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| 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 99.0% 711
- Cancelled 1.0% 7
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 32 | 32 | 84.4% | 0 |
| December 2024 | 40 | 40 | 80.0% | 0 |
| January 2025 | 33 | 32 | 90.6% | 1 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 37 | 37 | 94.6% | 0 |
| April 2025 | 61 | 60 | 80.0% | 1 |
| May 2025 | 71 | 70 | 90.0% | 1 |
| June 2025 | 23 | 23 | 87.0% | 0 |
| July 2025 | 18 | 18 | 94.4% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 31 | 29 | 62.1% | 2 |
| December 2025 | 31 | 31 | 64.5% | 0 |
| January 2026 | 36 | 35 | 60.0% | 1 |
| February 2026 | 35 | 35 | 71.4% | 0 |
| March 2026 | 32 | 31 | 58.1% | 1 |
| April 2026 | 19 | 19 | 84.2% | 0 |
| May 2026 | 18 | 18 | 100.0% | 0 |
| June 2026 | 28 | 28 | 46.4% | 0 |
| July 2026 | 33 | 33 | 24.2% | 0 |