WN1966
WN1966 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Los Angeles to Chicago. Of 671 departures recorded from October 2024 to July 2026, 78.0% left on time, according to the US BTS.
- On-time departures78.0%of 671 flights
- Average delay10.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number26
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 | 32 | 51 | ▲ 59.4% |
| February | 25 | 52 | ▲ 108.0% |
| March | 30 | 35 | ▲ 16.7% |
| April | 24 | 51 | ▲ 112.5% |
| May | 22 | 56 | ▲ 154.5% |
| June | 29 | 33 | ▲ 13.8% |
| July | 31 | 31 | 0.0% |
| August | 23 | – | – |
| September | 21 | – | – |
| October | 29 | – | in progress |
| November | 8 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 193 | 309 | ▲ 60.1% |
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 | 90.6% | 92.2% | ▲ 1.7% |
| February | 96.0% | 69.2% | ▼ 27.9% |
| March | 100.0% | 76.5% | ▼ 23.5% |
| April | 87.5% | 66.7% | ▼ 23.8% |
| May | 54.6% | 73.2% | ▲ 34.2% |
| June | 86.2% | 60.6% | ▼ 29.7% |
| July | 77.4% | 67.7% | ▼ 12.5% |
| August | 87.0% | – | – |
| September | 95.2% | – | – |
| October | 96.6% | – | in progress |
| November | 62.5% | – | – |
| December | 30.0% | – | – |
| Year-to-date average (Jan–Jul) | 84.6% | 72.3% | ▼ 14.6% |
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 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 99.7% 669
- Cancelled 0.3% 2
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAX MDW Los Angeles International Airport – Chicago Midway International Airport | 2,812 | 5.6 min | 86.4% | 110 |
| ALB BWI Albany International Airport – Baltimore/Washington International Thurgood Marshall Airport | 464 | 16.4 min | 83.6% | 61 |
| DEN OAK Denver International Airport – Oakland San Francisco Bay Airport | 1,537 | 9.7 min | 84.5% | 58 |
| BNA LGA Nashville International Airport – LaGuardia Airport | 1,228 | 25.0 min | 61.4% | 57 |
| LGB PHX Long Beach International Airport – Phoenix Sky Harbor International Airport | 570 | 2.3 min | 85.1% | 47 |
| BWI TPA Baltimore/Washington International Thurgood Marshall Airport – Tampa International Airport | 1,358 | -0.5 min | 92.5% | 40 |
| OAK LGB Oakland San Francisco Bay Airport – Long Beach International Airport | 569 | 2.5 min | 91.4% | 35 |
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | 11.9 min | 71.9% | 33 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | -0.7 min | 96.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 69.2% | 0 |
| November 2024 | 27 | 27 | 88.9% | 0 |
| December 2024 | 37 | 37 | 62.2% | 0 |
| January 2025 | 32 | 32 | 90.6% | 0 |
| February 2025 | 25 | 25 | 96.0% | 0 |
| March 2025 | 30 | 30 | 100.0% | 0 |
| April 2025 | 24 | 24 | 87.5% | 0 |
| May 2025 | 22 | 22 | 54.6% | 0 |
| June 2025 | 29 | 29 | 86.2% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 23 | 23 | 87.0% | 0 |
| September 2025 | 21 | 21 | 95.2% | 0 |
| October 2025 | 29 | 29 | 96.6% | 0 |
| November 2025 | 8 | 8 | 62.5% | 0 |
| December 2025 | 11 | 10 | 30.0% | 1 |
| January 2026 | 51 | 51 | 92.2% | 0 |
| February 2026 | 52 | 52 | 69.2% | 0 |
| March 2026 | 35 | 34 | 76.5% | 1 |
| April 2026 | 51 | 51 | 66.7% | 0 |
| May 2026 | 56 | 56 | 73.2% | 0 |
| June 2026 | 33 | 33 | 60.6% | 0 |
| July 2026 | 31 | 31 | 67.7% | 0 |