WN4552
WN4552 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Minneapolis to Denver. Of 296 departures recorded from October 2024 to July 2026, 65.8% left on time, according to the US BTS.
- On-time departures65.8%of 296 flights
- Average delay20.7 min
- July 202630▲ 0.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number17
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 8 | 2 | ▼ 75.0% |
| March | 21 | 5 | ▼ 76.2% |
| April | 25 | 25 | 0.0% |
| May | 25 | 31 | ▲ 24.0% |
| June | 30 | 30 | 0.0% |
| July | 30 | 30 | 0.0% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 25.0% | 100.0% | ▲ 300.0% |
| March | 55.0% | 40.0% | ▼ 27.3% |
| April | 80.0% | 88.0% | ▲ 10.0% |
| May | 80.0% | 74.2% | ▼ 7.3% |
| June | 66.7% | 60.0% | ▼ 10.0% |
| July | 46.7% | 56.7% | ▲ 21.4% |
| August | 71.4% | – | – |
| September | 75.0% | – | – |
| October | – | – | in progress |
| November | – | – | – |
| 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 periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | – | – | – |
| 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 99.7% 295
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSP DEN Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Denver International Airport | 1,092 | 33.0 min | 55.0% | 60 |
| RDU BNA Raleigh-Durham International Airport – Nashville International Airport | 710 | 3.5 min | 81.6% | 49 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 25.6 min | 57.1% | 42 |
| TPA DCA Tampa International Airport – Ronald Reagan Washington National Airport | 1,312 | 9.5 min | 76.2% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 60.0% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| December 2024 | 1 | 1 | 100.0% | 0 |
| February 2025 | 8 | 8 | 25.0% | 0 |
| March 2025 | 21 | 20 | 55.0% | 1 |
| April 2025 | 25 | 25 | 80.0% | 0 |
| May 2025 | 25 | 25 | 80.0% | 0 |
| June 2025 | 30 | 30 | 66.7% | 0 |
| July 2025 | 30 | 30 | 46.7% | 0 |
| August 2025 | 7 | 7 | 71.4% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 5 | 5 | 40.0% | 0 |
| April 2026 | 25 | 25 | 88.0% | 0 |
| May 2026 | 31 | 31 | 74.2% | 0 |
| June 2026 | 30 | 30 | 60.0% | 0 |
| July 2026 | 30 | 30 | 56.7% | 0 |