WN3872
WN3872 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Kansas City to Washington. Of 420 departures recorded from October 2024 to July 2026, 72.2% left on time, according to the US BTS.
- On-time departures72.2%of 420 flights
- Average delay14.1 min
- July 202623
- Cancelled1.7%
- 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 | 46 | – | – |
| February | 43 | 10 | ▼ 76.7% |
| March | 34 | 5 | ▼ 85.3% |
| April | 38 | 4 | ▼ 89.5% |
| May | 37 | 4 | ▼ 89.2% |
| June | 7 | 19 | ▲ 171.4% |
| July | – | 23 | – |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 3 | – | – |
| December | – | – | – |
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 | 83.3% | – | – |
| February | 44.2% | 50.0% | ▲ 13.1% |
| March | 72.7% | 100.0% | ▲ 37.5% |
| April | 86.8% | 25.0% | ▼ 71.2% |
| May | 94.6% | 25.0% | ▼ 73.6% |
| June | 100.0% | 73.7% | ▼ 26.3% |
| July | – | 69.6% | – |
| August | 80.8% | – | – |
| September | 43.3% | – | – |
| October | 75.7% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
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 | 4 | – | – |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 98.3% 413
- Cancelled 1.7% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCI DCA Kansas City International Airport – Ronald Reagan Washington National Airport | 1,524 | 22.0 min | 54.6% | 91 |
| BUF MDW Buffalo Niagara International Airport – Chicago Midway International Airport | 752 | 3.4 min | 95.9% | 50 |
| SNA SMF John Wayne Orange County International Airport – Sacramento International Airport | 650 | 13.6 min | 71.4% | 42 |
| PHX OMA Phoenix Sky Harbor International Airport – Eppley Airfield | 1,667 | 30.3 min | 56.3% | 32 |
| PHX SJC Phoenix Sky Harbor International Airport – Mineta San Jose International Airport | 999 | 13.0 min | 70.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 100.0% | 0 |
| November 2024 | 15 | 15 | 73.3% | 0 |
| December 2024 | 32 | 32 | 68.8% | 0 |
| January 2025 | 46 | 42 | 83.3% | 4 |
| February 2025 | 43 | 43 | 44.2% | 0 |
| March 2025 | 34 | 33 | 72.7% | 1 |
| April 2025 | 38 | 38 | 86.8% | 0 |
| May 2025 | 37 | 37 | 94.6% | 0 |
| June 2025 | 7 | 6 | 100.0% | 1 |
| August 2025 | 26 | 26 | 80.8% | 0 |
| September 2025 | 30 | 30 | 43.3% | 0 |
| October 2025 | 37 | 37 | 75.7% | 0 |
| November 2025 | 3 | 3 | 100.0% | 0 |
| February 2026 | 10 | 10 | 50.0% | 0 |
| March 2026 | 5 | 4 | 100.0% | 1 |
| April 2026 | 4 | 4 | 25.0% | 0 |
| May 2026 | 4 | 4 | 25.0% | 0 |
| June 2026 | 19 | 19 | 73.7% | 0 |
| July 2026 | 23 | 23 | 69.6% | 0 |