WN2357
WN2357 (Southwest Airlines) is a multi-stop service on 28 routes, busiest St Louis to Boston. Of 629 departures recorded from October 2024 to July 2026, 76.5% left on time, according to the US BTS.
- On-time departures76.5%of 629 flights
- Average delay11.4 min
- July 202613▼ 69.8%vs July 2025
- Cancelled1.3%
- Legs flown under this number28
according to the US BTS · Oct 13, 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 | 11 | 33 | ▲ 200.0% |
| February | 15 | 28 | ▲ 86.7% |
| March | 38 | 15 | ▼ 60.5% |
| April | 41 | 26 | ▼ 36.6% |
| May | 46 | 31 | ▼ 32.6% |
| June | 43 | 14 | ▼ 67.4% |
| July | 43 | 13 | ▼ 69.8% |
| August | 33 | – | – |
| September | 30 | – | – |
| October | 23 | – | in progress |
| November | 36 | – | – |
| December | 44 | – | – |
| Year to date (Jan–Jul) | 237 | 160 | ▼ 32.5% |
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 | 77.8% | 87.5% | ▲ 12.5% |
| February | 73.3% | 70.4% | ▼ 4.0% |
| March | 64.9% | 86.7% | ▲ 33.6% |
| April | 82.9% | 84.6% | ▲ 2.0% |
| May | 97.8% | 77.4% | ▼ 20.9% |
| June | 74.4% | 21.4% | ▼ 71.2% |
| July | 65.1% | 30.8% | ▼ 52.7% |
| August | 71.9% | – | – |
| September | 70.0% | – | – |
| October | 65.2% | – | in progress |
| November | 91.4% | – | – |
| December | 70.5% | – | – |
| Year-to-date average (Jan–Jul) | 76.6% | 65.5% | ▼ 14.4% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 1 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
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 98.7% 621
- Cancelled 1.3% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| STL BOS St. Louis Lambert International Airport – Boston Logan International Airport | 1,680 | 5.7 min | 86.1% | 82 |
| SRQ BWI Sarasota Bradenton International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,419 | 7.9 min | 76.8% | 58 |
| DAL SAT Dallas Love Field – San Antonio International Airport | 399 | 13.9 min | 74.5% | 52 |
| MSY BNA Louis Armstrong New Orleans International Airport – Nashville International Airport | 759 | -1.5 min | 97.8% | 46 |
| BNA LAS Nashville International Airport – Harry Reid International Airport | 2,549 | 18.0 min | 61.9% | 42 |
| MDW BWI Chicago Midway International Airport – Baltimore/Washington International Thurgood Marshall Airport | 981 | -3.5 min | 100.0% | 40 |
| BWI ISP Baltimore/Washington International Thurgood Marshall Airport – Long Island MacArthur Airport | 353 | 17.6 min | 76.5% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 90.9% | 0 |
| November 2024 | 27 | 27 | 96.3% | 0 |
| December 2024 | 28 | 27 | 85.2% | 1 |
| January 2025 | 11 | 9 | 77.8% | 2 |
| February 2025 | 15 | 15 | 73.3% | 0 |
| March 2025 | 38 | 37 | 64.9% | 1 |
| April 2025 | 41 | 41 | 82.9% | 0 |
| May 2025 | 46 | 46 | 97.8% | 0 |
| June 2025 | 43 | 43 | 74.4% | 0 |
| July 2025 | 43 | 43 | 65.1% | 0 |
| August 2025 | 33 | 32 | 71.9% | 1 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 23 | 23 | 65.2% | 0 |
| November 2025 | 36 | 35 | 91.4% | 1 |
| December 2025 | 44 | 44 | 70.5% | 0 |
| January 2026 | 33 | 32 | 87.5% | 1 |
| February 2026 | 28 | 27 | 70.4% | 1 |
| March 2026 | 15 | 15 | 86.7% | 0 |
| April 2026 | 26 | 26 | 84.6% | 0 |
| May 2026 | 31 | 31 | 77.4% | 0 |
| June 2026 | 14 | 14 | 21.4% | 0 |
| July 2026 | 13 | 13 | 30.8% | 0 |