WN936
WN936 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Boston to St Louis. Of 711 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 711 flights
- Average delay9.3 min
- July 202638▼ 13.6%vs July 2025
- Cancelled1.0%
- Legs flown under this number35
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 | 50 | ▲ 61.3% |
| February | 28 | 30 | ▲ 7.1% |
| March | 19 | 37 | ▲ 94.7% |
| April | 27 | 31 | ▲ 14.8% |
| May | 27 | 31 | ▲ 14.8% |
| June | 41 | 38 | ▼ 7.3% |
| July | 44 | 38 | ▼ 13.6% |
| August | 24 | – | – |
| September | 21 | – | – |
| October | 27 | – | in progress |
| November | 32 | – | – |
| December | 35 | – | – |
| Year to date (Jan–Jul) | 217 | 255 | ▲ 17.5% |
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 | 96.6% | 86.0% | ▼ 10.9% |
| February | 92.9% | 93.3% | ▲ 0.5% |
| March | 89.5% | 77.1% | ▼ 13.8% |
| April | 88.9% | 90.3% | ▲ 1.6% |
| May | 74.1% | 96.8% | ▲ 30.6% |
| June | 75.6% | 47.4% | ▼ 37.3% |
| July | 67.4% | 51.4% | ▼ 23.9% |
| August | 70.8% | – | – |
| September | 90.5% | – | – |
| October | 74.1% | – | in progress |
| November | 71.9% | – | – |
| December | 82.9% | – | – |
| Year-to-date average (Jan–Jul) | 83.6% | 77.5% | ▼ 7.3% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 0.0% |
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 99.0% 704
- Cancelled 1.0% 7
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS STL Boston Logan International Airport – St. Louis Lambert International Airport | 1,680 | 1.4 min | 96.7% | 123 |
| MKE AUS General Mitchell International Airport – Austin Bergstrom International Airport | 1,662 | 6.7 min | 79.4% | 63 |
| BUF BNA Buffalo Niagara International Airport – Nashville International Airport | 1,018 | 13.7 min | 71.7% | 60 |
| HNL SJC Daniel K. Inouye International Airport – Mineta San Jose International Airport | 3,886 | 0.1 min | 94.8% | 58 |
| RDU DAL Raleigh-Durham International Airport – Dallas Love Field | 1,689 | 28.1 min | 54.4% | 57 |
| PHX SMF Phoenix Sky Harbor International Airport – Sacramento International Airport | 1,040 | 1.8 min | 88.9% | 54 |
| HOU HRL William P. Hobby Airport – Valley International Airport | 446 | 11.2 min | 82.0% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 38 | 38 | 92.1% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 32 | 31 | 100.0% | 1 |
| January 2025 | 31 | 29 | 96.6% | 2 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 19 | 19 | 89.5% | 0 |
| April 2025 | 27 | 27 | 88.9% | 0 |
| May 2025 | 27 | 27 | 74.1% | 0 |
| June 2025 | 41 | 41 | 75.6% | 0 |
| July 2025 | 44 | 43 | 67.4% | 1 |
| August 2025 | 24 | 24 | 70.8% | 0 |
| September 2025 | 21 | 21 | 90.5% | 0 |
| October 2025 | 27 | 27 | 74.1% | 0 |
| November 2025 | 32 | 32 | 71.9% | 0 |
| December 2025 | 35 | 35 | 82.9% | 0 |
| January 2026 | 50 | 50 | 86.0% | 0 |
| February 2026 | 30 | 30 | 93.3% | 0 |
| March 2026 | 37 | 35 | 77.1% | 2 |
| April 2026 | 31 | 31 | 90.3% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 38 | 38 | 47.4% | 0 |
| July 2026 | 38 | 37 | 51.4% | 1 |