WN4508
WN4508 (Southwest Airlines) is a multi-stop service on 15 routes, busiest Phoenix to Orlando. Of 342 departures recorded from October 2024 to July 2026, 64.5% left on time, according to the US BTS.
- On-time departures64.5%of 342 flights
- Average delay21.4 min
- July 202631▲ 40.9%vs July 2025
- Cancelled1.2%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 10 | ▲ 900.0% |
| February | – | 18 | – |
| March | 32 | 18 | ▼ 43.8% |
| April | 24 | 4 | ▼ 83.3% |
| May | 23 | – | – |
| June | 20 | 27 | ▲ 35.0% |
| July | 22 | 31 | ▲ 40.9% |
| August | 25 | – | – |
| September | 26 | – | – |
| October | 1 | – | in progress |
| November | 21 | – | – |
| December | 19 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 77.8% | ▼ 22.2% |
| February | – | 77.8% | – |
| March | 56.3% | 52.9% | ▼ 5.9% |
| April | 69.6% | 100.0% | ▲ 43.7% |
| May | 39.1% | – | – |
| June | 60.0% | 61.5% | ▲ 2.6% |
| July | 54.6% | 77.4% | ▲ 41.9% |
| August | 52.0% | – | – |
| September | 84.6% | – | – |
| October | 100.0% | – | in progress |
| November | 57.1% | – | – |
| December | 57.9% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | – | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| 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 98.8% 338
- Cancelled 1.2% 4
Share of all recorded flights in the period, all legs. · Oct 31, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX MCO Phoenix Sky Harbor International Airport – Orlando International Airport | 2,969 | 13.8 min | 70.2% | 58 |
| SJC MDW Mineta San Jose International Airport – Chicago Midway International Airport | 2,950 | 23.2 min | 59.5% | 42 |
| MSY ATL Louis Armstrong New Orleans International Airport – Hartsfield Jackson Atlanta International Airport | 684 | 14.9 min | 71.4% | 42 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 26.5 min | 55.0% | 40 |
| DEN LAX Denver International Airport – Los Angeles International Airport | 1,385 | 43.6 min | 47.5% | 40 |
| BWI FLL Baltimore/Washington International Thurgood Marshall Airport – Fort Lauderdale Hollywood International Airport | 1,493 | 26.1 min | 57.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| November 2024 | 13 | 13 | 100.0% | 0 |
| December 2024 | 6 | 6 | 50.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| March 2025 | 32 | 32 | 56.3% | 0 |
| April 2025 | 24 | 23 | 69.6% | 1 |
| May 2025 | 23 | 23 | 39.1% | 0 |
| June 2025 | 20 | 20 | 60.0% | 0 |
| July 2025 | 22 | 22 | 54.6% | 0 |
| August 2025 | 25 | 25 | 52.0% | 0 |
| September 2025 | 26 | 26 | 84.6% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 21 | 21 | 57.1% | 0 |
| December 2025 | 19 | 19 | 57.9% | 0 |
| January 2026 | 10 | 9 | 77.8% | 1 |
| February 2026 | 18 | 18 | 77.8% | 0 |
| March 2026 | 18 | 17 | 52.9% | 1 |
| April 2026 | 4 | 4 | 100.0% | 0 |
| June 2026 | 27 | 26 | 61.5% | 1 |
| July 2026 | 31 | 31 | 77.4% | 0 |