WN3529
WN3529 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Denver to Oakland. Of 515 departures recorded from October 2024 to July 2026, 76.4% left on time, according to the US BTS.
- On-time departures76.4%of 515 flights
- Average delay10.5 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.6%
- Legs flown under this number25
according to the US BTS · Oct 14, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 29 | 4 | ▼ 86.2% |
| February | 18 | 3 | ▼ 83.3% |
| March | 16 | 27 | ▲ 68.8% |
| April | 7 | 22 | ▲ 214.3% |
| May | 4 | 22 | ▲ 450.0% |
| June | 26 | 27 | ▲ 3.8% |
| July | 30 | 31 | ▲ 3.3% |
| August | 53 | – | – |
| September | 56 | – | – |
| October | 5 | – | in progress |
| November | 35 | – | – |
| December | 38 | – | – |
| Year to date (Jan–Jul) | 130 | 136 | ▲ 4.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 72.4% | 25.0% | ▼ 65.5% |
| February | 66.7% | 33.3% | ▼ 50.0% |
| March | 68.8% | 63.0% | ▼ 8.4% |
| April | 85.7% | 68.2% | ▼ 20.5% |
| May | 75.0% | 90.5% | ▲ 20.6% |
| June | 69.2% | 85.2% | ▲ 23.1% |
| July | 90.0% | 100.0% | ▲ 11.1% |
| August | 73.6% | – | – |
| September | 80.4% | – | – |
| October | 60.0% | – | in progress |
| November | 91.2% | – | – |
| December | 70.3% | – | – |
| Year-to-date average (Jan–Jul) | 75.4% | 66.4% | ▼ 11.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.4% 512
- Cancelled 0.6% 3
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN OAK Denver International Airport – Oakland San Francisco Bay Airport | 1,537 | 11.5 min | 69.8% | 63 |
| LAX SFO Los Angeles International Airport – San Francisco International Airport | 543 | 6.8 min | 81.4% | 59 |
| MCI LAS Kansas City International Airport – Harry Reid International Airport | 1,829 | 12.7 min | 70.2% | 57 |
| DEN LAS Denver International Airport – Harry Reid International Airport | 1,009 | 11.0 min | 88.6% | 45 |
| DCA PVD Ronald Reagan Washington National Airport – Rhode Island T. F. Green International Airport | 573 | 1.7 min | 95.1% | 41 |
| OAK BUR Oakland San Francisco Bay Airport – Hollywood Burbank/Bob Hope Airport | 523 | 13.8 min | 81.6% | 39 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 18.1 min | 57.6% | 33 |
| CMH FLL John Glenn Columbus International Airport – Fort Lauderdale Hollywood International Airport | 1,569 | 15.0 min | 63.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 84.6% | 0 |
| November 2024 | 25 | 25 | 72.0% | 0 |
| December 2024 | 24 | 24 | 54.2% | 0 |
| January 2025 | 29 | 29 | 72.4% | 0 |
| February 2025 | 18 | 18 | 66.7% | 0 |
| March 2025 | 16 | 16 | 68.8% | 0 |
| April 2025 | 7 | 7 | 85.7% | 0 |
| May 2025 | 4 | 4 | 75.0% | 0 |
| June 2025 | 26 | 26 | 69.2% | 0 |
| July 2025 | 30 | 30 | 90.0% | 0 |
| August 2025 | 53 | 53 | 73.6% | 0 |
| September 2025 | 56 | 56 | 80.4% | 0 |
| October 2025 | 5 | 5 | 60.0% | 0 |
| November 2025 | 35 | 34 | 91.2% | 1 |
| December 2025 | 38 | 37 | 70.3% | 1 |
| January 2026 | 4 | 4 | 25.0% | 0 |
| February 2026 | 3 | 3 | 33.3% | 0 |
| March 2026 | 27 | 27 | 63.0% | 0 |
| April 2026 | 22 | 22 | 68.2% | 0 |
| May 2026 | 22 | 21 | 90.5% | 1 |
| June 2026 | 27 | 27 | 85.2% | 0 |
| July 2026 | 31 | 31 | 100.0% | 0 |