WN661
WN661 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Dallas to Midland. Of 662 departures recorded from October 2024 to July 2026, 76.3% left on time, according to the US BTS.
- On-time departures76.3%of 662 flights
- Average delay14.1 min
- July 202631▼ 3.1%vs July 2025
- Cancelled1.8%
- 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 | 33 | 31 | ▼ 6.1% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 32 | ▲ 3.2% |
| June | 30 | 30 | 0.0% |
| July | 32 | 31 | ▼ 3.1% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 39 | – | in progress |
| November | 26 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 215 | 213 | ▼ 0.9% |
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% | 86.7% | ▼ 4.4% |
| February | 96.4% | 75.0% | ▼ 22.2% |
| March | 83.9% | 53.6% | ▼ 36.1% |
| April | 51.7% | 83.3% | ▲ 61.1% |
| May | 35.5% | 93.8% | ▲ 164.2% |
| June | 66.7% | 93.3% | ▲ 40.0% |
| July | 75.0% | 93.6% | ▲ 24.7% |
| August | 77.4% | – | – |
| September | 80.0% | – | – |
| October | 41.0% | – | in progress |
| November | 71.4% | – | – |
| December | 90.5% | – | – |
| Year-to-date average (Jan–Jul) | 71.4% | 82.7% | ▲ 15.9% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 5 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 98.2% 650
- Cancelled 1.8% 12
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL MAF Dallas Love Field – Midland International Air and Space Port | 513 | 4.6 min | 90.2% | 92 |
| PHX PDX Phoenix Sky Harbor International Airport – Portland International Airport | 1,625 | 8.4 min | 75.4% | 61 |
| SJC PHX Mineta San Jose International Airport – Phoenix Sky Harbor International Airport | 999 | 5.0 min | 93.1% | 58 |
| DEN ORD Denver International Airport – Chicago O'Hare International Airport | 1,426 | 14.1 min | 79.3% | 58 |
| DEN MCO Denver International Airport – Orlando International Airport | 2,486 | 52.1 min | 35.1% | 58 |
| LIH HNL Lihue Airport – Daniel K. Inouye International Airport | 163 | -1.6 min | 93.0% | 57 |
| MDW CLT Chicago Midway International Airport – Charlotte Douglas International Airport | 940 | 5.9 min | 87.9% | 33 |
| BWI RIC Baltimore/Washington International Thurgood Marshall Airport – Richmond International Airport | 194 | 26.7 min | 46.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 37 | 36 | 69.4% | 1 |
| January 2025 | 33 | 32 | 90.6% | 1 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 29 | 51.7% | 1 |
| May 2025 | 31 | 31 | 35.5% | 0 |
| June 2025 | 30 | 30 | 66.7% | 0 |
| July 2025 | 32 | 32 | 75.0% | 0 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 39 | 39 | 41.0% | 0 |
| November 2025 | 26 | 21 | 71.4% | 5 |
| December 2025 | 21 | 21 | 90.5% | 0 |
| January 2026 | 31 | 30 | 86.7% | 1 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 31 | 28 | 53.6% | 3 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 32 | 32 | 93.8% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |