WN738
WN738 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Pittsburgh to Baltimore. Of 834 departures recorded from October 2024 to July 2026, 84.6% left on time, according to the US BTS.
- On-time departures84.6%of 834 flights
- Average delay7.2 min
- July 202651▲ 0.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number37
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 | 31 | 30 | ▼ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 37 | 58 | ▲ 56.8% |
| April | 56 | 33 | ▼ 41.1% |
| May | 55 | 26 | ▼ 52.7% |
| June | 56 | 49 | ▼ 12.5% |
| July | 51 | 51 | 0.0% |
| August | 37 | – | – |
| September | 34 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 314 | 275 | ▼ 12.4% |
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 | 82.8% | 88.9% | ▲ 7.4% |
| February | 89.3% | 78.6% | ▼ 12.0% |
| March | 97.1% | 81.0% | ▼ 16.5% |
| April | 96.4% | 97.0% | ▲ 0.6% |
| May | 87.3% | 96.2% | ▲ 10.2% |
| June | 80.4% | 75.0% | ▼ 6.7% |
| July | 76.5% | 78.4% | ▲ 2.6% |
| August | 97.3% | – | – |
| September | 82.4% | – | – |
| October | 83.9% | – | in progress |
| November | 53.3% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jul) | 87.1% | 85.0% | ▼ 2.4% |
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 | 2 | 3 | ▲ 50.0% |
| February | 0 | 0 | – |
| March | 3 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 4 | ▼ 20.0% |
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% 825
- Cancelled 1.1% 9
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 | 21 | 21 | 95.2% | 0 |
| November 2024 | 31 | 31 | 100.0% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 31 | 29 | 82.8% | 2 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 37 | 34 | 97.1% | 3 |
| April 2025 | 56 | 56 | 96.4% | 0 |
| May 2025 | 55 | 55 | 87.3% | 0 |
| June 2025 | 56 | 56 | 80.4% | 0 |
| July 2025 | 51 | 51 | 76.5% | 0 |
| August 2025 | 37 | 37 | 97.3% | 0 |
| September 2025 | 34 | 34 | 82.4% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 30 | 30 | 53.3% | 0 |
| December 2025 | 30 | 30 | 60.0% | 0 |
| January 2026 | 30 | 27 | 88.9% | 3 |
| February 2026 | 28 | 28 | 78.6% | 0 |
| March 2026 | 58 | 58 | 81.0% | 0 |
| April 2026 | 33 | 33 | 97.0% | 0 |
| May 2026 | 26 | 26 | 96.2% | 0 |
| June 2026 | 49 | 48 | 75.0% | 1 |
| July 2026 | 51 | 51 | 78.4% | 0 |