WN3679
WN3679 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Miami to Chicago. Of 283 departures recorded from October 2024 to July 2026, 61.4% left on time, according to the US BTS.
- On-time departures61.4%of 283 flights
- Average delay24.7 min
- July 202616▼ 61.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number20
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 5 | – |
| February | 10 | 1 | ▼ 90.0% |
| March | 10 | 14 | ▲ 40.0% |
| April | 5 | 3 | ▼ 40.0% |
| May | 3 | – | – |
| June | 33 | 15 | ▼ 54.5% |
| July | 41 | 16 | ▼ 61.0% |
| August | 4 | – | – |
| September | – | – | – |
| October | 38 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 60.0% | – |
| February | 80.0% | 0.0% | ▼ 100.0% |
| March | 60.0% | 92.9% | ▲ 54.8% |
| April | 80.0% | 100.0% | ▲ 25.0% |
| May | 100.0% | – | – |
| June | 36.4% | 40.0% | ▲ 10.0% |
| July | 40.0% | 43.8% | ▲ 9.4% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | 65.8% | – | in progress |
| November | 85.2% | – | – |
| December | 61.3% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 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 98.9% 280
- Cancelled 1.1% 3
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MIA MDW Miami International Airport – Chicago Midway International Airport | 1,905 | 13.0 min | 71.0% | 63 |
| BWI CLT Baltimore/Washington International Thurgood Marshall Airport – Charlotte Douglas International Airport | 581 | 56.3 min | 40.7% | 60 |
| HOU MCI William P. Hobby Airport – Kansas City International Airport | 1,075 | 14.5 min | 64.5% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 2 | 2 | 50.0% | 0 |
| February 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 10 | 10 | 60.0% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| May 2025 | 3 | 3 | 100.0% | 0 |
| June 2025 | 33 | 33 | 36.4% | 0 |
| July 2025 | 41 | 40 | 40.0% | 1 |
| August 2025 | 4 | 4 | 50.0% | 0 |
| October 2025 | 38 | 38 | 65.8% | 0 |
| November 2025 | 28 | 27 | 85.2% | 1 |
| December 2025 | 31 | 31 | 61.3% | 0 |
| January 2026 | 5 | 5 | 60.0% | 0 |
| February 2026 | 1 | 1 | 0.0% | 0 |
| March 2026 | 14 | 14 | 92.9% | 0 |
| April 2026 | 3 | 2 | 100.0% | 1 |
| June 2026 | 15 | 15 | 40.0% | 0 |
| July 2026 | 16 | 16 | 43.8% | 0 |