WN1527
WN1527 (Southwest Airlines) is a multi-stop service on 29 routes, busiest St Louis to New Orleans. Of 689 departures recorded from October 2024 to July 2026, 76.4% left on time, according to the US BTS.
- On-time departures76.4%of 689 flights
- Average delay14.1 min
- July 202614▼ 54.8%vs July 2025
- Cancelled1.2%
- Legs flown under this number29
according to the US BTS · Oct 12, 2024 → Jul 29, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 30 | 48 | ▲ 60.0% |
| February | 26 | 37 | ▲ 42.3% |
| March | 49 | 22 | ▼ 55.1% |
| April | 35 | 28 | ▼ 20.0% |
| May | 31 | 30 | ▼ 3.2% |
| June | 30 | 14 | ▼ 53.3% |
| July | 31 | 14 | ▼ 54.8% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 43 | – | in progress |
| November | 39 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 232 | 193 | ▼ 16.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 92.0% | 91.7% | ▼ 0.4% |
| February | 96.2% | 73.0% | ▼ 24.1% |
| March | 77.6% | 77.3% | ▼ 0.4% |
| April | 80.0% | 92.9% | ▲ 16.1% |
| May | 67.7% | 80.0% | ▲ 18.1% |
| June | 82.8% | 71.4% | ▼ 13.7% |
| July | 87.1% | 57.1% | ▼ 34.4% |
| August | 77.4% | – | – |
| September | 66.7% | – | – |
| October | 50.0% | – | in progress |
| November | 42.1% | – | – |
| December | 52.0% | – | – |
| Year-to-date average (Jan–Jul) | 83.3% | 77.6% | ▼ 6.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 0 | ▼ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 681
- Cancelled 1.2% 8
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL MSY St. Louis Lambert International Airport – Louis Armstrong New Orleans International Airport | 974 | 7.2 min | 92.4% | 97 |
| JAX HOU Jacksonville International Airport – William P. Hobby Airport | 1,310 | 8.3 min | 88.3% | 61 |
| BUR LAS Hollywood Burbank/Bob Hope Airport – Harry Reid International Airport | 359 | 19.2 min | 70.7% | 58 |
| BOI DEN Boise Air Terminal/Gowen Field – Denver International Airport | 1,042 | 21.0 min | 72.4% | 58 |
| PDX DEN Portland International Airport – Denver International Airport | 1,592 | 9.6 min | 79.0% | 57 |
| BWI FLL Baltimore/Washington International Thurgood Marshall Airport – Fort Lauderdale Hollywood International Airport | 1,493 | 5.8 min | 86.0% | 50 |
| MCO BHM Orlando International Airport – Birmingham-Shuttlesworth International Airport | 771 | 35.8 min | 48.7% | 40 |
| OAK PDX Oakland San Francisco Bay Airport – Portland International Airport | 876 | -2.3 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 75.0% | 0 |
| November 2024 | 42 | 42 | 85.7% | 0 |
| December 2024 | 34 | 34 | 97.1% | 0 |
| January 2025 | 30 | 25 | 92.0% | 5 |
| February 2025 | 26 | 26 | 96.2% | 0 |
| March 2025 | 49 | 49 | 77.6% | 0 |
| April 2025 | 35 | 35 | 80.0% | 0 |
| May 2025 | 31 | 31 | 67.7% | 0 |
| June 2025 | 30 | 29 | 82.8% | 1 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 66.7% | 0 |
| October 2025 | 43 | 42 | 50.0% | 1 |
| November 2025 | 39 | 38 | 42.1% | 1 |
| December 2025 | 25 | 25 | 52.0% | 0 |
| January 2026 | 48 | 48 | 91.7% | 0 |
| February 2026 | 37 | 37 | 73.0% | 0 |
| March 2026 | 22 | 22 | 77.3% | 0 |
| April 2026 | 28 | 28 | 92.9% | 0 |
| May 2026 | 30 | 30 | 80.0% | 0 |
| June 2026 | 14 | 14 | 71.4% | 0 |
| July 2026 | 14 | 14 | 57.1% | 0 |