WN1937
WN1937 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Los Angeles to Baltimore. Of 552 departures recorded from October 2024 to July 2026, 70.5% left on time, according to the US BTS.
- On-time departures70.5%of 552 flights
- Average delay16.4 min
- July 202654▲ 145.5%vs July 2025
- Cancelled0.5%
- Legs flown under this number28
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 | 11 | 36 | ▲ 227.3% |
| February | 15 | 29 | ▲ 93.3% |
| March | 32 | 31 | ▼ 3.1% |
| April | 8 | 22 | ▲ 175.0% |
| May | 1 | 24 | ▲ 2,300.0% |
| June | 18 | 47 | ▲ 161.1% |
| July | 22 | 54 | ▲ 145.5% |
| August | 16 | – | – |
| September | 17 | – | – |
| October | 42 | – | in progress |
| November | 22 | – | – |
| December | 24 | – | – |
| Year to date (Jan–Jul) | 107 | 243 | ▲ 127.1% |
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 | 90.9% | 77.8% | ▼ 14.4% |
| February | 80.0% | 58.6% | ▼ 26.7% |
| March | 71.9% | 76.7% | ▲ 6.7% |
| April | 87.5% | 90.9% | ▲ 3.9% |
| May | 100.0% | 91.7% | ▼ 8.3% |
| June | 33.3% | 31.9% | ▼ 4.3% |
| July | 50.0% | 55.6% | ▲ 11.1% |
| August | 87.5% | – | – |
| September | 94.1% | – | – |
| October | 97.6% | – | in progress |
| November | 85.7% | – | – |
| December | 73.9% | – | – |
| Year-to-date average (Jan–Jul) | 73.4% | 69.0% | ▼ 5.9% |
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 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.5% 549
- Cancelled 0.5% 3
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 60.0% | 0 |
| November 2024 | 30 | 30 | 73.3% | 0 |
| December 2024 | 31 | 31 | 71.0% | 0 |
| January 2025 | 11 | 11 | 90.9% | 0 |
| February 2025 | 15 | 15 | 80.0% | 0 |
| March 2025 | 32 | 32 | 71.9% | 0 |
| April 2025 | 8 | 8 | 87.5% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 18 | 18 | 33.3% | 0 |
| July 2025 | 22 | 22 | 50.0% | 0 |
| August 2025 | 16 | 16 | 87.5% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 42 | 42 | 97.6% | 0 |
| November 2025 | 22 | 21 | 85.7% | 1 |
| December 2025 | 24 | 23 | 73.9% | 1 |
| January 2026 | 36 | 36 | 77.8% | 0 |
| February 2026 | 29 | 29 | 58.6% | 0 |
| March 2026 | 31 | 30 | 76.7% | 1 |
| April 2026 | 22 | 22 | 90.9% | 0 |
| May 2026 | 24 | 24 | 91.7% | 0 |
| June 2026 | 47 | 47 | 31.9% | 0 |
| July 2026 | 54 | 54 | 55.6% | 0 |