WN3856
WN3856 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Sacramento to Phoenix. Of 468 departures recorded from October 2024 to July 2026, 59.7% left on time, according to the US BTS.
- On-time departures59.7%of 468 flights
- Average delay22.5 min
- July 202630▼ 28.6%vs July 2025
- Cancelled1.5%
- Legs flown under this number19
Recorded departures by month
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 | 21 | 27 | ▲ 28.6% |
| February | 9 | 28 | ▲ 211.1% |
| March | 28 | 31 | ▲ 10.7% |
| April | 7 | 33 | ▲ 371.4% |
| May | 1 | 35 | ▲ 3,400.0% |
| June | 38 | 30 | ▼ 21.1% |
| July | 42 | 30 | ▼ 28.6% |
| August | 9 | – | – |
| September | 4 | – | – |
| October | 30 | – | in progress |
| November | 16 | – | – |
| December | 4 | – | – |
| Year to date (Jan–Jul) | 146 | 214 | ▲ 46.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 66.7% | 84.0% | ▲ 26.0% |
| February | 100.0% | 89.3% | ▼ 10.7% |
| March | 82.1% | 40.0% | ▼ 51.3% |
| April | 42.9% | 66.7% | ▲ 55.6% |
| May | 100.0% | 54.3% | ▼ 45.7% |
| June | 65.8% | 30.0% | ▼ 54.4% |
| July | 56.1% | 20.0% | ▼ 64.3% |
| August | 55.6% | – | – |
| September | 50.0% | – | – |
| October | 53.3% | – | in progress |
| November | 43.8% | – | – |
| December | 25.0% | – | – |
| Year-to-date average (Jan–Jul) | 73.4% | 54.9% | ▼ 25.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 2 | ▼ 33.3% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 3 | ▼ 25.0% |
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% 461
- Cancelled 1.5% 7
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF PHX Sacramento International Airport – Phoenix Sky Harbor International Airport | 1,040 | 24.4 min | 63.3% | 60 |
| TPA CMH Tampa International Airport – John Glenn Columbus International Airport | 1,337 | 1.7 min | 87.5% | 58 |
| DEN SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 54.0 min | 21.1% | 57 |
| BNA CLE Nashville International Airport – Cleveland Hopkins International Airport | 721 | 16.7 min | 64.9% | 57 |
| ORD AUS Chicago O'Hare International Airport – Austin Bergstrom International Airport | 1,574 | 13.3 min | 72.7% | 33 |
| MCO ISP Orlando International Airport – Long Island MacArthur Airport | 1,565 | 41.2 min | 34.4% | 33 |
| DEN IND Denver International Airport – Indianapolis International Airport | 1,568 | 20.6 min | 54.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| November 2024 | 28 | 28 | 82.1% | 0 |
| December 2024 | 16 | 16 | 62.5% | 0 |
| January 2025 | 21 | 18 | 66.7% | 3 |
| February 2025 | 9 | 9 | 100.0% | 0 |
| March 2025 | 28 | 28 | 82.1% | 0 |
| April 2025 | 7 | 7 | 42.9% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 38 | 38 | 65.8% | 0 |
| July 2025 | 42 | 41 | 56.1% | 1 |
| August 2025 | 9 | 9 | 55.6% | 0 |
| September 2025 | 4 | 4 | 50.0% | 0 |
| October 2025 | 30 | 30 | 53.3% | 0 |
| November 2025 | 16 | 16 | 43.8% | 0 |
| December 2025 | 4 | 4 | 25.0% | 0 |
| January 2026 | 27 | 25 | 84.0% | 2 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 30 | 40.0% | 1 |
| April 2026 | 33 | 33 | 66.7% | 0 |
| May 2026 | 35 | 35 | 54.3% | 0 |
| June 2026 | 30 | 30 | 30.0% | 0 |
| July 2026 | 30 | 30 | 20.0% | 0 |