WN4720
WN4720 (Southwest Airlines) is a multi-stop service on 12 routes, busiest Denver to Phoenix. Of 198 departures recorded from October 2024 to July 2026, 65.6% left on time, according to the US BTS.
- On-time departures65.6%of 198 flights
- Average delay24.1 min
- July 202618▲ 350.0%vs July 2025
- Cancelled1.5%
- Legs flown under this number12
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 | – | 3 | – |
| February | – | – | – |
| March | – | – | – |
| April | 20 | 14 | ▼ 30.0% |
| May | 27 | 16 | ▼ 40.7% |
| June | 7 | 18 | ▲ 157.1% |
| July | 4 | 18 | ▲ 350.0% |
| August | 4 | – | – |
| September | 4 | – | – |
| October | 21 | – | in progress |
| November | 6 | – | – |
| December | 11 | – | – |
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 | – | 33.3% | – |
| February | – | – | – |
| March | – | – | – |
| April | 45.0% | 92.9% | ▲ 106.4% |
| May | 46.2% | 100.0% | ▲ 116.7% |
| June | 71.4% | 70.6% | ▼ 1.2% |
| July | 50.0% | 29.4% | ▼ 41.2% |
| August | 25.0% | – | – |
| September | 75.0% | – | – |
| October | 95.2% | – | in progress |
| November | 50.0% | – | – |
| December | 45.5% | – | – |
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 | – | 0 | – |
| February | – | – | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 98.5% 195
- Cancelled 1.5% 3
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN PHX Denver International Airport – Phoenix Sky Harbor International Airport | 968 | 47.1 min | 44.9% | 50 |
| AUS MCO Austin Bergstrom International Airport – Orlando International Airport | 1,596 | 36.2 min | 46.9% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 82.6% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| April 2025 | 20 | 20 | 45.0% | 0 |
| May 2025 | 27 | 26 | 46.2% | 1 |
| June 2025 | 7 | 7 | 71.4% | 0 |
| July 2025 | 4 | 4 | 50.0% | 0 |
| August 2025 | 4 | 4 | 25.0% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 21 | 21 | 95.2% | 0 |
| November 2025 | 6 | 6 | 50.0% | 0 |
| December 2025 | 11 | 11 | 45.5% | 0 |
| January 2026 | 3 | 3 | 33.3% | 0 |
| April 2026 | 14 | 14 | 92.9% | 0 |
| May 2026 | 16 | 16 | 100.0% | 0 |
| June 2026 | 18 | 17 | 70.6% | 1 |
| July 2026 | 18 | 17 | 29.4% | 1 |