WN1517
WN1517 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Atlanta to Baltimore. Of 702 departures recorded from October 2024 to July 2026, 78.2% left on time, according to the US BTS.
- On-time departures78.2%of 702 flights
- Average delay10.9 min
- July 202640▲ 29.0%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 | 14 | 50 | ▲ 257.1% |
| February | 19 | 34 | ▲ 78.9% |
| March | 25 | 32 | ▲ 28.0% |
| April | 46 | 30 | ▼ 34.8% |
| May | 53 | 31 | ▼ 41.5% |
| June | 33 | 37 | ▲ 12.1% |
| July | 31 | 40 | ▲ 29.0% |
| August | 23 | – | – |
| September | 21 | – | – |
| October | 16 | – | in progress |
| November | 45 | – | – |
| December | 37 | – | – |
| Year to date (Jan–Jul) | 221 | 254 | ▲ 14.9% |
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 | 84.6% | 72.0% | ▼ 14.9% |
| February | 79.0% | 67.7% | ▼ 14.3% |
| March | 64.0% | 87.5% | ▲ 36.7% |
| April | 91.3% | 56.7% | ▼ 37.9% |
| May | 90.6% | 30.0% | ▼ 66.9% |
| June | 87.9% | 75.7% | ▼ 13.9% |
| July | 80.7% | 84.6% | ▲ 4.9% |
| August | 69.6% | – | – |
| September | 61.9% | – | – |
| October | 93.8% | – | in progress |
| November | 93.0% | – | – |
| December | 83.8% | – | – |
| Year-to-date average (Jan–Jul) | 82.6% | 67.7% | ▼ 18.0% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 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% 697
- 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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 32 | 32 | 81.3% | 0 |
| December 2024 | 33 | 33 | 81.8% | 0 |
| January 2025 | 14 | 13 | 84.6% | 1 |
| February 2025 | 19 | 19 | 79.0% | 0 |
| March 2025 | 25 | 25 | 64.0% | 0 |
| April 2025 | 46 | 46 | 91.3% | 0 |
| May 2025 | 53 | 53 | 90.6% | 0 |
| June 2025 | 33 | 33 | 87.9% | 0 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 23 | 23 | 69.6% | 0 |
| September 2025 | 21 | 21 | 61.9% | 0 |
| October 2025 | 16 | 16 | 93.8% | 0 |
| November 2025 | 45 | 43 | 93.0% | 2 |
| December 2025 | 37 | 37 | 83.8% | 0 |
| January 2026 | 50 | 50 | 72.0% | 0 |
| February 2026 | 34 | 34 | 67.7% | 0 |
| March 2026 | 32 | 32 | 87.5% | 0 |
| April 2026 | 30 | 30 | 56.7% | 0 |
| May 2026 | 31 | 30 | 30.0% | 1 |
| June 2026 | 37 | 37 | 75.7% | 0 |
| July 2026 | 40 | 39 | 84.6% | 1 |