WN3479
WN3479 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Baltimore to Manchester. Of 543 departures recorded from October 2024 to July 2026, 80.4% left on time, according to the US BTS.
- On-time departures80.4%of 543 flights
- Average delay9.6 min
- July 202617
- Cancelled1.5%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 33 | ▲ 32.0% |
| February | 19 | 39 | ▲ 105.3% |
| March | 29 | 31 | ▲ 6.9% |
| April | 39 | 30 | ▼ 23.1% |
| May | 45 | 31 | ▼ 31.1% |
| June | 5 | 19 | ▲ 280.0% |
| July | – | 17 | – |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 5 | – | in progress |
| November | 24 | – | – |
| December | 20 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.0% | 96.6% | ▲ 9.7% |
| February | 94.7% | 86.8% | ▼ 8.3% |
| March | 65.5% | 86.7% | ▲ 32.3% |
| April | 89.7% | 93.3% | ▲ 4.0% |
| May | 86.4% | 60.0% | ▼ 30.5% |
| June | 100.0% | 26.3% | ▼ 73.7% |
| July | – | 35.3% | – |
| August | 88.5% | – | – |
| September | 73.3% | – | – |
| October | 100.0% | – | in progress |
| November | 66.7% | – | – |
| December | 80.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 4 | – |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 1 | 1 | 0.0% |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 98.5% 535
- Cancelled 1.5% 8
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 27 | 27 | 96.3% | 0 |
| December 2024 | 29 | 29 | 82.8% | 0 |
| January 2025 | 25 | 25 | 88.0% | 0 |
| February 2025 | 19 | 19 | 94.7% | 0 |
| March 2025 | 29 | 29 | 65.5% | 0 |
| April 2025 | 39 | 39 | 89.7% | 0 |
| May 2025 | 45 | 44 | 86.4% | 1 |
| June 2025 | 5 | 5 | 100.0% | 0 |
| August 2025 | 26 | 26 | 88.5% | 0 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| November 2025 | 24 | 24 | 66.7% | 0 |
| December 2025 | 20 | 20 | 80.0% | 0 |
| January 2026 | 33 | 29 | 96.6% | 4 |
| February 2026 | 39 | 38 | 86.8% | 1 |
| March 2026 | 31 | 30 | 86.7% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 30 | 60.0% | 1 |
| June 2026 | 19 | 19 | 26.3% | 0 |
| July 2026 | 17 | 17 | 35.3% | 0 |