WN651
WN651 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Los Angeles to Chicago. Of 656 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 656 flights
- Average delay10.0 min
- July 202634▼ 2.9%vs July 2025
- Cancelled0.5%
- Legs flown under this number30
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 | 53 | 26 | ▼ 50.9% |
| February | 43 | 27 | ▼ 37.2% |
| March | 34 | 31 | ▼ 8.8% |
| April | 30 | 22 | ▼ 26.7% |
| May | 31 | 23 | ▼ 25.8% |
| June | 34 | 32 | ▼ 5.9% |
| July | 35 | 34 | ▼ 2.9% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 27 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 260 | 195 | ▼ 25.0% |
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 | 92.5% | 64.0% | ▼ 30.8% |
| February | 100.0% | 88.9% | ▼ 11.1% |
| March | 94.1% | 60.0% | ▼ 36.3% |
| April | 90.0% | 63.6% | ▼ 29.3% |
| May | 87.1% | 59.1% | ▼ 32.2% |
| June | 70.6% | 62.5% | ▼ 11.5% |
| July | 88.6% | 58.8% | ▼ 33.6% |
| August | 70.4% | – | – |
| September | 84.6% | – | – |
| October | 100.0% | – | in progress |
| November | 63.2% | – | – |
| December | 40.0% | – | – |
| Year-to-date average (Jan–Jul) | 89.0% | 65.3% | ▼ 26.6% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 3 |
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 99.5% 653
- Cancelled 0.5% 3
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 | -1.0 min | 97.3% | 75 |
| BZN DEN Bozeman Yellowstone International Airport – Denver International Airport | 844 | 6.7 min | 86.2% | 58 |
| SLC DEN Salt Lake City International Airport – Denver International Airport | 628 | 14.2 min | 75.5% | 49 |
| MAF LAS Midland International Air and Space Port – Harry Reid International Airport | 1,278 | 13.2 min | 85.7% | 42 |
| BNA PWM Nashville International Airport – Portland International Jetport | 1,624 | 16.0 min | 59.5% | 42 |
| LAS SAN Harry Reid International Airport – San Diego International Airport | 417 | 20.5 min | 60.5% | 39 |
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 3.2 min | 94.4% | 36 |
| LGA ATL LaGuardia Airport – Hartsfield Jackson Atlanta International Airport | 1,225 | 4.2 min | 97.0% | 33 |
| DEN RSW Denver International Airport – Southwest Florida International Airport | 2,584 | 33.3 min | 56.3% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 88.5% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 31 | 31 | 100.0% | 0 |
| January 2025 | 53 | 53 | 92.5% | 0 |
| February 2025 | 43 | 43 | 100.0% | 0 |
| March 2025 | 34 | 34 | 94.1% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 34 | 34 | 70.6% | 0 |
| July 2025 | 35 | 35 | 88.6% | 0 |
| August 2025 | 27 | 27 | 70.4% | 0 |
| September 2025 | 26 | 26 | 84.6% | 0 |
| October 2025 | 27 | 27 | 100.0% | 0 |
| November 2025 | 19 | 19 | 63.2% | 0 |
| December 2025 | 15 | 15 | 40.0% | 0 |
| January 2026 | 26 | 25 | 64.0% | 1 |
| February 2026 | 27 | 27 | 88.9% | 0 |
| March 2026 | 31 | 30 | 60.0% | 1 |
| April 2026 | 22 | 22 | 63.6% | 0 |
| May 2026 | 23 | 22 | 59.1% | 1 |
| June 2026 | 32 | 32 | 62.5% | 0 |
| July 2026 | 34 | 34 | 58.8% | 0 |