WN1664
WN1664 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Los Angeles to Chicago. Of 507 departures recorded from October 2024 to July 2026, 70.2% left on time, according to the US BTS.
- On-time departures70.2%of 507 flights
- Average delay17.9 min
- July 20265▼ 86.1%vs July 2025
- Cancelled1.4%
- Legs flown under this number23
according to the US BTS · Oct 13, 2024 → Jul 26, 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 | 25 | 30 | ▲ 20.0% |
| February | 26 | 25 | ▼ 3.8% |
| March | 35 | 4 | ▼ 88.6% |
| April | 37 | 21 | ▼ 43.2% |
| May | 41 | 26 | ▼ 36.6% |
| June | 34 | 7 | ▼ 79.4% |
| July | 36 | 5 | ▼ 86.1% |
| August | 28 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 18 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 234 | 118 | ▼ 49.6% |
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 | 84.0% | 92.9% | ▲ 10.5% |
| February | 73.1% | 88.0% | ▲ 20.4% |
| March | 77.1% | 25.0% | ▼ 67.6% |
| April | 85.7% | 85.7% | 0.0% |
| May | 77.5% | 53.9% | ▼ 30.5% |
| June | 69.7% | 42.9% | ▼ 38.5% |
| July | 55.6% | 40.0% | ▼ 28.0% |
| August | 46.4% | – | – |
| September | 53.9% | – | – |
| October | 80.7% | – | in progress |
| November | 70.6% | – | – |
| December | 33.3% | – | – |
| Year-to-date average (Jan–Jul) | 74.7% | 61.2% | ▼ 18.1% |
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 | 0 | – |
| March | 0 | 0 | – |
| April | 2 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 2 | ▼ 50.0% |
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 98.6% 500
- Cancelled 1.4% 7
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 26, 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 |
|---|---|---|---|---|
| LAX MDW Los Angeles International Airport – Chicago Midway International Airport | 2,812 | 18.2 min | 65.4% | 52 |
| SLC DEN Salt Lake City International Airport – Denver International Airport | 628 | 15.4 min | 78.4% | 51 |
| DEN SDF Denver International Airport – Louisville Muhammad Ali International Airport | 1,644 | 37.1 min | 50.0% | 50 |
| DAL MSY Dallas Love Field – Louis Armstrong New Orleans International Airport | 700 | -0.1 min | 87.5% | 50 |
| BWI RDU Baltimore/Washington International Thurgood Marshall Airport – Raleigh-Durham International Airport | 411 | 25.7 min | 66.0% | 50 |
| SAN HOU San Diego International Airport – William P. Hobby Airport | 2,109 | 0.7 min | 92.9% | 42 |
| HOU BNA William P. Hobby Airport – Nashville International Airport | 1,078 | 10.4 min | 71.0% | 32 |
| LAX SFO Los Angeles International Airport – San Francisco International Airport | 543 | 4.7 min | 83.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 8 | 8 | 62.5% | 0 |
| December 2024 | 12 | 12 | 25.0% | 0 |
| January 2025 | 25 | 25 | 84.0% | 0 |
| February 2025 | 26 | 26 | 73.1% | 0 |
| March 2025 | 35 | 35 | 77.1% | 0 |
| April 2025 | 37 | 35 | 85.7% | 2 |
| May 2025 | 41 | 40 | 77.5% | 1 |
| June 2025 | 34 | 33 | 69.7% | 1 |
| July 2025 | 36 | 36 | 55.6% | 0 |
| August 2025 | 28 | 28 | 46.4% | 0 |
| September 2025 | 26 | 26 | 53.9% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 18 | 17 | 70.6% | 1 |
| December 2025 | 15 | 15 | 33.3% | 0 |
| January 2026 | 30 | 28 | 92.9% | 2 |
| February 2026 | 25 | 25 | 88.0% | 0 |
| March 2026 | 4 | 4 | 25.0% | 0 |
| April 2026 | 21 | 21 | 85.7% | 0 |
| May 2026 | 26 | 26 | 53.9% | 0 |
| June 2026 | 7 | 7 | 42.9% | 0 |
| July 2026 | 5 | 5 | 40.0% | 0 |