WN1845
WN1845 (Southwest Airlines) is a multi-stop service on 34 routes, busiest St Louis to Sacramento. Of 707 departures recorded from October 2024 to July 2026, 76.2% left on time, according to the US BTS.
- On-time departures76.2%of 707 flights
- Average delay11.6 min
- July 202629▼ 52.5%vs July 2025
- Cancelled1.3%
- Legs flown under this number34
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 | 9 | 27 | ▲ 200.0% |
| February | 14 | 27 | ▲ 92.9% |
| March | 25 | 56 | ▲ 124.0% |
| April | 38 | 35 | ▼ 7.9% |
| May | 41 | 30 | ▼ 26.8% |
| June | 59 | 26 | ▼ 55.9% |
| July | 61 | 29 | ▼ 52.5% |
| August | 35 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 247 | 230 | ▼ 6.9% |
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 | 62.5% | 96.3% | ▲ 54.1% |
| February | 71.4% | 77.8% | ▲ 8.9% |
| March | 88.0% | 92.6% | ▲ 5.2% |
| April | 81.6% | 64.7% | ▼ 20.7% |
| May | 66.7% | 63.3% | ▼ 5.0% |
| June | 79.7% | 38.5% | ▼ 51.7% |
| July | 73.8% | 41.4% | ▼ 43.9% |
| August | 88.2% | – | – |
| September | 93.3% | – | – |
| October | 88.9% | – | in progress |
| November | 88.9% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 74.8% | 67.8% | ▼ 9.4% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 2 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 0.0% |
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 98.7% 698
- Cancelled 1.3% 9
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL SMF St. Louis Lambert International Airport – Sacramento International Airport | 2,695 | 16.3 min | 60.0% | 66 |
| ROC BWI Frederick Douglass Greater Rochester International Airport – Baltimore/Washington International Thurgood Marshall Airport | 447 | 7.0 min | 87.1% | 64 |
| BWI MSY Baltimore/Washington International Thurgood Marshall Airport – Louis Armstrong New Orleans International Airport | 1,607 | 2.4 min | 93.0% | 58 |
| HOU BNA William P. Hobby Airport – Nashville International Airport | 1,078 | 7.3 min | 84.6% | 52 |
| PHX STL Phoenix Sky Harbor International Airport – St. Louis Lambert International Airport | 2,026 | 27.0 min | 50.0% | 42 |
| FAT SAN Fresno Yosemite International Airport – San Diego International Airport | 505 | 50.5 min | 23.8% | 42 |
| CMH MDW John Glenn Columbus International Airport – Chicago Midway International Airport | 454 | 4.2 min | 95.2% | 42 |
| ATL MDW Hartsfield Jackson Atlanta International Airport – Chicago Midway International Airport | 952 | 8.6 min | 78.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 84.2% | 0 |
| November 2024 | 29 | 29 | 65.5% | 0 |
| December 2024 | 30 | 30 | 66.7% | 0 |
| January 2025 | 9 | 8 | 62.5% | 1 |
| February 2025 | 14 | 14 | 71.4% | 0 |
| March 2025 | 25 | 25 | 88.0% | 0 |
| April 2025 | 38 | 38 | 81.6% | 0 |
| May 2025 | 41 | 39 | 66.7% | 2 |
| June 2025 | 59 | 59 | 79.7% | 0 |
| July 2025 | 61 | 61 | 73.8% | 0 |
| August 2025 | 35 | 34 | 88.2% | 1 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 27 | 27 | 88.9% | 0 |
| November 2025 | 29 | 27 | 88.9% | 2 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 27 | 27 | 96.3% | 0 |
| February 2026 | 27 | 27 | 77.8% | 0 |
| March 2026 | 56 | 54 | 92.6% | 2 |
| April 2026 | 35 | 34 | 64.7% | 1 |
| May 2026 | 30 | 30 | 63.3% | 0 |
| June 2026 | 26 | 26 | 38.5% | 0 |
| July 2026 | 29 | 29 | 41.4% | 0 |