WN4302
WN4302 (Southwest Airlines) is a multi-stop service on 17 routes, busiest San Francisco to Denver. Of 359 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 359 flights
- Average delay11.2 min
- July 202630
- Cancelled1.1%
- 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 periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 31 | ▲ 1,450.0% |
| February | 10 | 25 | ▲ 150.0% |
| March | 26 | 8 | ▼ 69.2% |
| April | 18 | 1 | ▼ 94.4% |
| May | 20 | 1 | ▼ 95.0% |
| June | 1 | 23 | ▲ 2,200.0% |
| July | – | 30 | – |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 18 | – | in progress |
| November | 27 | – | – |
| December | 30 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 80.0% | ▼ 20.0% |
| February | 60.0% | 76.0% | ▲ 26.7% |
| March | 84.6% | 62.5% | ▼ 26.1% |
| April | 94.4% | 0.0% | ▼ 100.0% |
| May | 80.0% | 100.0% | ▲ 25.0% |
| June | 100.0% | 47.8% | ▼ 52.2% |
| July | – | 75.9% | – |
| August | 55.6% | – | – |
| September | 90.0% | – | – |
| October | 88.9% | – | in progress |
| November | 88.0% | – | – |
| December | 86.7% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| 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% 355
- Cancelled 1.1% 4
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 |
|---|---|---|---|---|
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | 9.7 min | 85.0% | 62 |
| FLL BNA Fort Lauderdale Hollywood International Airport – Nashville International Airport | 1,278 | 15.3 min | 74.1% | 58 |
| LAS PIT Harry Reid International Airport – Pittsburgh International Airport | 3,066 | 13.8 min | 77.8% | 55 |
| DEN LIT Denver International Airport – Bill & Hillary Clinton National Airport/Adams Field | 1,239 | 15.8 min | 62.0% | 50 |
| TPA CMH Tampa International Airport – John Glenn Columbus International Airport | 1,337 | 12.3 min | 84.4% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 3 | 3 | 66.7% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 2 | 2 | 100.0% | 0 |
| February 2025 | 10 | 10 | 60.0% | 0 |
| March 2025 | 26 | 26 | 84.6% | 0 |
| April 2025 | 18 | 18 | 94.4% | 0 |
| May 2025 | 20 | 20 | 80.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 27 | 27 | 55.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 18 | 18 | 88.9% | 0 |
| November 2025 | 27 | 25 | 88.0% | 2 |
| December 2025 | 30 | 30 | 86.7% | 0 |
| January 2026 | 31 | 30 | 80.0% | 1 |
| February 2026 | 25 | 25 | 76.0% | 0 |
| March 2026 | 8 | 8 | 62.5% | 0 |
| April 2026 | 1 | 1 | 0.0% | 0 |
| May 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 23 | 23 | 47.8% | 0 |
| July 2026 | 30 | 29 | 75.9% | 1 |