WN646
WN646 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Baltimore to Phoenix. Of 683 departures recorded from October 2024 to July 2026, 76.5% left on time, according to the US BTS.
- On-time departures76.5%of 683 flights
- Average delay12.0 min
- July 202628▼ 17.6%vs July 2025
- Cancelled0.9%
- Legs flown under this number30
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 | 47 | ▲ 42.4% |
| February | 36 | 23 | ▼ 36.1% |
| March | 28 | 31 | ▲ 10.7% |
| April | 29 | 33 | ▲ 13.8% |
| May | 31 | 34 | ▲ 9.7% |
| June | 34 | 26 | ▼ 23.5% |
| July | 34 | 28 | ▼ 17.6% |
| August | 29 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 225 | 222 | ▼ 1.3% |
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 | 78.1% | 91.1% | ▲ 16.6% |
| February | 83.3% | 65.2% | ▼ 21.7% |
| March | 92.6% | 80.7% | ▼ 12.9% |
| April | 82.8% | 100.0% | ▲ 20.8% |
| May | 64.5% | 97.1% | ▲ 50.4% |
| June | 58.8% | 34.6% | ▼ 41.1% |
| July | 64.7% | 32.1% | ▼ 50.3% |
| August | 55.2% | – | – |
| September | 88.5% | – | – |
| October | 90.3% | – | in progress |
| November | 83.3% | – | – |
| December | 90.3% | – | – |
| Year-to-date average (Jan–Jul) | 75.0% | 71.5% | ▼ 4.6% |
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 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.1% 677
- Cancelled 0.9% 6
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 | 13 | 13 | 92.3% | 0 |
| November 2024 | 34 | 34 | 85.3% | 0 |
| December 2024 | 42 | 40 | 65.0% | 2 |
| January 2025 | 33 | 32 | 78.1% | 1 |
| February 2025 | 36 | 36 | 83.3% | 0 |
| March 2025 | 28 | 27 | 92.6% | 1 |
| April 2025 | 29 | 29 | 82.8% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 34 | 34 | 58.8% | 0 |
| July 2025 | 34 | 34 | 64.7% | 0 |
| August 2025 | 29 | 29 | 55.2% | 0 |
| September 2025 | 26 | 26 | 88.5% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 83.3% | 0 |
| December 2025 | 31 | 31 | 90.3% | 0 |
| January 2026 | 47 | 45 | 91.1% | 2 |
| February 2026 | 23 | 23 | 65.2% | 0 |
| March 2026 | 31 | 31 | 80.7% | 0 |
| April 2026 | 33 | 33 | 100.0% | 0 |
| May 2026 | 34 | 34 | 97.1% | 0 |
| June 2026 | 26 | 26 | 34.6% | 0 |
| July 2026 | 28 | 28 | 32.1% | 0 |