WN2977
WN2977 (Southwest Airlines) is a multi-stop service on 29 routes, busiest St Louis to Houston. Of 669 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 669 flights
- Average delay12.8 min
- July 202639▲ 116.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number29
according to the US BTS · Oct 12, 2024 → Jul 31, 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 | 3 | 36 | ▲ 1,100.0% |
| February | 10 | 29 | ▲ 190.0% |
| March | 6 | 31 | ▲ 416.7% |
| April | 32 | 41 | ▲ 28.1% |
| May | 39 | 42 | ▲ 7.7% |
| June | 20 | 39 | ▲ 95.0% |
| July | 18 | 39 | ▲ 116.7% |
| August | 77 | – | – |
| September | 86 | – | – |
| October | 32 | – | in progress |
| November | 26 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 128 | 257 | ▲ 100.8% |
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 | 66.7% | 90.9% | ▲ 36.4% |
| February | 100.0% | 96.6% | ▼ 3.5% |
| March | 50.0% | 70.0% | ▲ 40.0% |
| April | 93.8% | 80.0% | ▼ 14.7% |
| May | 82.1% | 81.0% | ▼ 1.3% |
| June | 85.0% | 79.5% | ▼ 6.5% |
| July | 100.0% | 84.6% | ▼ 15.4% |
| August | 74.0% | – | – |
| September | 72.1% | – | – |
| October | 84.4% | – | in progress |
| November | 61.5% | – | – |
| December | 44.8% | – | – |
| Year-to-date average (Jan–Jul) | 82.5% | 83.2% | ▲ 0.9% |
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 | 0 | 3 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 5 |
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 99.3% 664
- 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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL HOU St. Louis Lambert International Airport – William P. Hobby Airport | 1,108 | 25.0 min | 54.2% | 59 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | 16.1 min | 67.2% | 58 |
| DAL MCI Dallas Love Field – Kansas City International Airport | 743 | 12.1 min | 87.9% | 58 |
| MSY AUS Louis Armstrong New Orleans International Airport – Austin Bergstrom International Airport | 712 | 8.1 min | 80.7% | 57 |
| AUS LAS Austin Bergstrom International Airport – Harry Reid International Airport | 1,752 | 6.7 min | 87.5% | 49 |
| DCA MDW Ronald Reagan Washington National Airport – Chicago Midway International Airport | 964 | -3.2 min | 100.0% | 47 |
| FLL ORD Fort Lauderdale Hollywood International Airport – Chicago O'Hare International Airport | 1,905 | 48.2 min | 68.8% | 33 |
| LAS ONT Harry Reid International Airport – Ontario International Airport | 317 | 28.3 min | 56.3% | 32 |
| LGB RNO Long Beach International Airport – Reno Tahoe International Airport | 648 | 11.1 min | 83.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 88.2% | 0 |
| November 2024 | 7 | 7 | 85.7% | 0 |
| December 2024 | 10 | 10 | 90.0% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| February 2025 | 10 | 10 | 100.0% | 0 |
| March 2025 | 6 | 6 | 50.0% | 0 |
| April 2025 | 32 | 32 | 93.8% | 0 |
| May 2025 | 39 | 39 | 82.1% | 0 |
| June 2025 | 20 | 20 | 85.0% | 0 |
| July 2025 | 18 | 18 | 100.0% | 0 |
| August 2025 | 77 | 77 | 74.0% | 0 |
| September 2025 | 86 | 86 | 72.1% | 0 |
| October 2025 | 32 | 32 | 84.4% | 0 |
| November 2025 | 26 | 26 | 61.5% | 0 |
| December 2025 | 29 | 29 | 44.8% | 0 |
| January 2026 | 36 | 33 | 90.9% | 3 |
| February 2026 | 29 | 29 | 96.6% | 0 |
| March 2026 | 31 | 30 | 70.0% | 1 |
| April 2026 | 41 | 40 | 80.0% | 1 |
| May 2026 | 42 | 42 | 81.0% | 0 |
| June 2026 | 39 | 39 | 79.5% | 0 |
| July 2026 | 39 | 39 | 84.6% | 0 |