WN3809
WN3809 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Chicago to Washington. Of 412 departures recorded from October 2024 to July 2026, 72.1% left on time, according to the US BTS.
- On-time departures72.1%of 412 flights
- Average delay14.2 min
- July 20263▼ 92.7%vs July 2025
- Cancelled0.7%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 31 | ▲ 520.0% |
| February | 2 | 32 | ▲ 1,500.0% |
| March | 27 | 32 | ▲ 18.5% |
| April | 10 | 24 | ▲ 140.0% |
| May | 4 | 21 | ▲ 425.0% |
| June | 33 | 7 | ▼ 78.8% |
| July | 41 | 3 | ▼ 92.7% |
| August | 4 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 20 | – | – |
| December | 17 | – | – |
| Year to date (Jan–Jul) | 122 | 150 | ▲ 23.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 83.9% | ▲ 67.7% |
| February | 50.0% | 71.9% | ▲ 43.8% |
| March | 77.8% | 75.0% | ▼ 3.6% |
| April | 90.0% | 45.8% | ▼ 49.1% |
| May | 100.0% | 23.8% | ▼ 76.2% |
| June | 97.0% | 42.9% | ▼ 55.8% |
| July | 87.5% | 100.0% | ▲ 14.3% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 60.0% | – | in progress |
| November | 94.7% | – | – |
| December | 70.6% | – | – |
| Year-to-date average (Jan–Jul) | 78.9% | 63.3% | ▼ 19.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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 99.3% 409
- Cancelled 0.7% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW DCA Chicago Midway International Airport – Ronald Reagan Washington National Airport | 964 | 9.1 min | 80.2% | 92 |
| STL MSY St. Louis Lambert International Airport – Louis Armstrong New Orleans International Airport | 974 | 7.9 min | 84.0% | 50 |
| PHX LAX Phoenix Sky Harbor International Airport – Los Angeles International Airport | 595 | 24.1 min | 40.5% | 42 |
| PHX STL Phoenix Sky Harbor International Airport – St. Louis Lambert International Airport | 2,026 | 12.2 min | 78.8% | 33 |
| MIA MCI Miami International Airport – Kansas City International Airport | 2,015 | 22.1 min | 60.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 29 | 29 | 72.4% | 0 |
| December 2024 | 20 | 20 | 45.0% | 0 |
| January 2025 | 5 | 4 | 50.0% | 1 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 27 | 27 | 77.8% | 0 |
| April 2025 | 10 | 10 | 90.0% | 0 |
| May 2025 | 4 | 4 | 100.0% | 0 |
| June 2025 | 33 | 33 | 97.0% | 0 |
| July 2025 | 41 | 40 | 87.5% | 1 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 30 | 30 | 60.0% | 0 |
| November 2025 | 20 | 19 | 94.7% | 1 |
| December 2025 | 17 | 17 | 70.6% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 32 | 32 | 71.9% | 0 |
| March 2026 | 32 | 32 | 75.0% | 0 |
| April 2026 | 24 | 24 | 45.8% | 0 |
| May 2026 | 21 | 21 | 23.8% | 0 |
| June 2026 | 7 | 7 | 42.9% | 0 |
| July 2026 | 3 | 3 | 100.0% | 0 |