WN513
WN513 (Southwest Airlines) is a multi-stop service on 33 routes, busiest Dulles to Denver. Of 712 departures recorded from October 2024 to July 2026, 81.7% left on time, according to the US BTS.
- On-time departures81.7%of 712 flights
- Average delay9.2 min
- July 202631▲ 6.9%vs July 2025
- Cancelled1.1%
- Legs flown under this number33
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 | 28 | 31 | ▲ 10.7% |
| February | 26 | 25 | ▼ 3.8% |
| March | 43 | 31 | ▼ 27.9% |
| April | 33 | 30 | ▼ 9.1% |
| May | 31 | 31 | 0.0% |
| June | 24 | 30 | ▲ 25.0% |
| July | 29 | 31 | ▲ 6.9% |
| August | 51 | – | – |
| September | 56 | – | – |
| October | 40 | – | in progress |
| November | 32 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 214 | 209 | ▼ 2.3% |
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 | 92.9% | 87.1% | ▼ 6.2% |
| February | 96.2% | 96.0% | ▼ 0.2% |
| March | 90.7% | 90.0% | ▼ 0.8% |
| April | 84.9% | 96.4% | ▲ 13.6% |
| May | 83.9% | 96.8% | ▲ 15.4% |
| June | 62.5% | 66.7% | ▲ 6.7% |
| July | 71.4% | 56.7% | ▼ 20.7% |
| August | 70.0% | – | – |
| September | 69.6% | – | – |
| October | 79.5% | – | in progress |
| November | 78.1% | – | – |
| December | 60.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.2% | 84.2% | ▲ 1.3% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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 98.9% 704
- Cancelled 1.1% 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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 28 | 28 | 92.9% | 0 |
| February 2025 | 26 | 26 | 96.2% | 0 |
| March 2025 | 43 | 43 | 90.7% | 0 |
| April 2025 | 33 | 33 | 84.9% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 24 | 24 | 62.5% | 0 |
| July 2025 | 29 | 28 | 71.4% | 1 |
| August 2025 | 51 | 50 | 70.0% | 1 |
| September 2025 | 56 | 56 | 69.6% | 0 |
| October 2025 | 40 | 39 | 79.5% | 1 |
| November 2025 | 32 | 32 | 78.1% | 0 |
| December 2025 | 29 | 28 | 60.7% | 1 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 25 | 25 | 96.0% | 0 |
| March 2026 | 31 | 30 | 90.0% | 1 |
| April 2026 | 30 | 28 | 96.4% | 2 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 31 | 30 | 56.7% | 1 |