WN3853
WN3853 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Santa Ana to Oakland. Of 528 departures recorded from October 2024 to July 2026, 66.9% left on time, according to the US BTS.
- On-time departures66.9%of 528 flights
- Average delay17.4 min
- July 202634▲ 61.9%vs July 2025
- Cancelled1.0%
- Legs flown under this number21
according to the US BTS · Oct 12, 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 | 23 | 27 | ▲ 17.4% |
| February | 19 | 31 | ▲ 63.2% |
| March | 29 | 31 | ▲ 6.9% |
| April | 27 | 48 | ▲ 77.8% |
| May | 26 | 52 | ▲ 100.0% |
| June | 24 | 37 | ▲ 54.2% |
| July | 21 | 34 | ▲ 61.9% |
| August | 10 | – | – |
| September | 8 | – | – |
| October | 5 | – | in progress |
| November | 2 | – | – |
| December | 9 | – | – |
| Year to date (Jan–Jul) | 169 | 260 | ▲ 53.8% |
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 | 73.9% | 72.0% | ▼ 2.6% |
| February | 89.5% | 83.3% | ▼ 6.9% |
| March | 79.3% | 60.0% | ▼ 24.3% |
| April | 74.1% | 64.6% | ▼ 12.8% |
| May | 68.0% | 67.3% | ▼ 1.0% |
| June | 41.7% | 37.8% | ▼ 9.2% |
| July | 14.3% | 58.8% | ▲ 311.6% |
| August | 80.0% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 22.2% | – | – |
| Year-to-date average (Jan–Jul) | 63.0% | 63.4% | ▲ 0.7% |
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 | 2 | – |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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 99.1% 523
- Cancelled 0.9% 5
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SNA OAK John Wayne Orange County International Airport – Oakland San Francisco Bay Airport | 597 | 30.6 min | 43.1% | 58 |
| TPA BWI Tampa International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,358 | 6.8 min | 79.6% | 57 |
| ORD LAS Chicago O'Hare International Airport – Harry Reid International Airport | 2,432 | 21.0 min | 69.4% | 50 |
| BNA DEN Nashville International Airport – Denver International Airport | 1,628 | 42.9 min | 25.0% | 44 |
| BWI CMH Baltimore/Washington International Thurgood Marshall Airport – John Glenn Columbus International Airport | 541 | 20.1 min | 66.7% | 42 |
| AUS BWI Austin Bergstrom International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,156 | 17.1 min | 58.8% | 34 |
| MIA STL Miami International Airport – St. Louis Lambert International Airport | 1,722 | 13.5 min | 78.8% | 33 |
| MCO IND Orlando International Airport – Indianapolis International Airport | 1,336 | 28.3 min | 62.5% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 33 | 33 | 84.9% | 0 |
| December 2024 | 12 | 12 | 75.0% | 0 |
| January 2025 | 23 | 23 | 73.9% | 0 |
| February 2025 | 19 | 19 | 89.5% | 0 |
| March 2025 | 29 | 29 | 79.3% | 0 |
| April 2025 | 27 | 27 | 74.1% | 0 |
| May 2025 | 26 | 25 | 68.0% | 1 |
| June 2025 | 24 | 24 | 41.7% | 0 |
| July 2025 | 21 | 21 | 14.3% | 0 |
| August 2025 | 10 | 10 | 80.0% | 0 |
| September 2025 | 8 | 8 | 100.0% | 0 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 9 | 9 | 22.2% | 0 |
| January 2026 | 27 | 25 | 72.0% | 2 |
| February 2026 | 31 | 30 | 83.3% | 1 |
| March 2026 | 31 | 30 | 60.0% | 1 |
| April 2026 | 48 | 48 | 64.6% | 0 |
| May 2026 | 52 | 52 | 67.3% | 0 |
| June 2026 | 37 | 37 | 37.8% | 0 |
| July 2026 | 34 | 34 | 58.8% | 0 |