WN3851
WN3851 (Southwest Airlines) is a multi-stop service on 24 routes, busiest New Orleans to Phoenix. Of 494 departures recorded from October 2024 to July 2026, 71.9% left on time, according to the US BTS.
- On-time departures71.9%of 494 flights
- Average delay14.6 min
- July 202621▼ 61.1%vs July 2025
- Cancelled1.2%
- Legs flown under this number24
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 29 | ▲ 2,800.0% |
| February | – | 27 | – |
| March | – | 45 | – |
| April | 20 | 32 | ▲ 60.0% |
| May | 27 | 31 | ▲ 14.8% |
| June | 49 | 23 | ▼ 53.1% |
| July | 54 | 21 | ▼ 61.1% |
| August | 8 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 37 | – | – |
| December | 45 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 92.9% | ▼ 7.1% |
| February | – | 92.3% | – |
| March | – | 93.3% | – |
| April | 70.0% | 46.9% | ▼ 33.0% |
| May | 61.5% | 22.6% | ▼ 63.3% |
| June | 79.6% | 30.4% | ▼ 61.8% |
| July | 79.3% | 52.4% | ▼ 33.9% |
| August | 75.0% | – | – |
| September | – | – | – |
| October | 90.0% | – | in progress |
| November | 82.9% | – | – |
| December | 71.1% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| 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 98.8% 488
- Cancelled 1.2% 6
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MSY PHX Louis Armstrong New Orleans International Airport – Phoenix Sky Harbor International Airport | 2,088 | 8.1 min | 83.1% | 59 |
| TPA BWI Tampa International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,358 | -0.7 min | 96.1% | 53 |
| PHX ONT Phoenix Sky Harbor International Airport – Ontario International Airport | 522 | 37.4 min | 22.0% | 50 |
| JAX MDW Jacksonville International Airport – Chicago Midway International Airport | 1,368 | 17.8 min | 65.3% | 50 |
| LAS STL Harry Reid International Airport – St. Louis Lambert International Airport | 2,202 | 27.2 min | 41.5% | 41 |
| PVD MDW Rhode Island T. F. Green International Airport – Chicago Midway International Airport | 1,352 | 4.9 min | 97.0% | 34 |
| MDW MSY Chicago Midway International Airport – Louis Armstrong New Orleans International Airport | 1,331 | 4.2 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 100.0% | 0 |
| November 2024 | 3 | 3 | 66.7% | 0 |
| December 2024 | 2 | 2 | 50.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 20 | 20 | 70.0% | 0 |
| May 2025 | 27 | 26 | 61.5% | 1 |
| June 2025 | 49 | 49 | 79.6% | 0 |
| July 2025 | 54 | 53 | 79.3% | 1 |
| August 2025 | 8 | 8 | 75.0% | 0 |
| October 2025 | 30 | 30 | 90.0% | 0 |
| November 2025 | 37 | 35 | 82.9% | 2 |
| December 2025 | 45 | 45 | 71.1% | 0 |
| January 2026 | 29 | 28 | 92.9% | 1 |
| February 2026 | 27 | 26 | 92.3% | 1 |
| March 2026 | 45 | 45 | 93.3% | 0 |
| April 2026 | 32 | 32 | 46.9% | 0 |
| May 2026 | 31 | 31 | 22.6% | 0 |
| June 2026 | 23 | 23 | 30.4% | 0 |
| July 2026 | 21 | 21 | 52.4% | 0 |