WN3838
WN3838 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Chicago to Los Angeles. Of 477 departures recorded from October 2024 to July 2026, 80.8% left on time, according to the US BTS.
- On-time departures80.8%of 477 flights
- Average delay9.0 min
- July 202616▼ 52.9%vs July 2025
- Cancelled0.8%
- Legs flown under this number26
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 | 18 | 2 | ▼ 88.9% |
| February | 17 | 7 | ▼ 58.8% |
| March | 25 | 1 | ▼ 96.0% |
| April | 50 | 24 | ▼ 52.0% |
| May | 63 | 31 | ▼ 50.8% |
| June | 36 | 19 | ▼ 47.2% |
| July | 34 | 16 | ▼ 52.9% |
| August | 21 | – | – |
| September | 17 | – | – |
| October | 29 | – | in progress |
| November | 24 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 243 | 100 | ▼ 58.8% |
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 | 83.3% | 100.0% | ▲ 20.0% |
| February | 88.2% | 100.0% | ▲ 13.3% |
| March | 64.0% | 100.0% | ▲ 56.3% |
| April | 86.0% | 95.8% | ▲ 11.4% |
| May | 82.5% | 96.8% | ▲ 17.2% |
| June | 57.1% | 50.0% | ▼ 12.5% |
| July | 51.5% | 62.5% | ▲ 21.3% |
| August | 80.0% | – | – |
| September | 88.2% | – | – |
| October | 96.6% | – | in progress |
| November | 100.0% | – | – |
| December | 90.5% | – | – |
| Year-to-date average (Jan–Jul) | 73.3% | 86.4% | ▲ 18.0% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.2% 473
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW LAX Chicago Midway International Airport – Los Angeles International Airport | 2,812 | 24.6 min | 48.3% | 60 |
| MDW MCO Chicago Midway International Airport – Orlando International Airport | 1,595 | 0.7 min | 94.8% | 58 |
| MSY AUS Louis Armstrong New Orleans International Airport – Austin Bergstrom International Airport | 712 | -2.9 min | 95.6% | 45 |
| JAX BWI Jacksonville International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,068 | 0.2 min | 95.2% | 42 |
| ALB MCO Albany International Airport – Orlando International Airport | 1,729 | 4.9 min | 81.3% | 32 |
| RDU PHX Raleigh-Durham International Airport – Phoenix Sky Harbor International Airport | 3,036 | 1.9 min | 96.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 2 | 2 | 50.0% | 0 |
| January 2025 | 18 | 18 | 83.3% | 0 |
| February 2025 | 17 | 17 | 88.2% | 0 |
| March 2025 | 25 | 25 | 64.0% | 0 |
| April 2025 | 50 | 50 | 86.0% | 0 |
| May 2025 | 63 | 63 | 82.5% | 0 |
| June 2025 | 36 | 35 | 57.1% | 1 |
| July 2025 | 34 | 33 | 51.5% | 1 |
| August 2025 | 21 | 20 | 80.0% | 1 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 29 | 29 | 96.6% | 0 |
| November 2025 | 24 | 24 | 100.0% | 0 |
| December 2025 | 21 | 21 | 90.5% | 0 |
| January 2026 | 2 | 2 | 100.0% | 0 |
| February 2026 | 7 | 7 | 100.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| April 2026 | 24 | 24 | 95.8% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 19 | 18 | 50.0% | 1 |
| July 2026 | 16 | 16 | 62.5% | 0 |