WN663
WN663 (Southwest Airlines) is a multi-stop service on 46 routes, busiest Tampa to Chicago. Of 713 departures recorded from October 2024 to July 2026, 80.3% left on time, according to the US BTS.
- On-time departures80.3%of 713 flights
- Average delay8.8 min
- July 202632▼ 22.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number46
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 | 30 | 14 | ▼ 53.3% |
| February | 60 | 16 | ▼ 73.3% |
| March | 47 | 25 | ▼ 46.8% |
| April | 42 | 26 | ▼ 38.1% |
| May | 45 | 26 | ▼ 42.2% |
| June | 37 | 30 | ▼ 18.9% |
| July | 41 | 32 | ▼ 22.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 47 | – | in progress |
| November | 31 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 302 | 169 | ▼ 44.0% |
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 | 86.7% | 78.6% | ▼ 9.3% |
| February | 76.3% | 87.5% | ▲ 14.7% |
| March | 97.8% | 56.0% | ▼ 42.8% |
| April | 92.7% | 42.3% | ▼ 54.3% |
| May | 84.4% | 56.0% | ▼ 33.7% |
| June | 97.3% | 70.0% | ▼ 28.1% |
| July | 92.7% | 71.9% | ▼ 22.4% |
| August | 86.7% | – | – |
| September | 100.0% | – | – |
| October | 80.9% | – | in progress |
| November | 80.0% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 89.7% | 66.0% | ▼ 26.4% |
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 | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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% 707
- Cancelled 0.8% 6
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA MDW Tampa International Airport – Chicago Midway International Airport | 1,607 | 4.7 min | 93.0% | 71 |
| SJC SAN Mineta San Jose International Airport – San Diego International Airport | 671 | 17.1 min | 69.4% | 63 |
| RSW BWI Southwest Florida International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,483 | 0.4 min | 94.6% | 57 |
| BWI ORF Baltimore/Washington International Thurgood Marshall Airport – Norfolk International Airport | 257 | 9.1 min | 80.4% | 52 |
| DAL MKE Dallas Love Field – General Mitchell International Airport | 1,369 | 24.6 min | 47.9% | 49 |
| BNA SAT Nashville International Airport – San Antonio International Airport | 1,322 | 3.8 min | 87.8% | 49 |
| AUS MCO Austin Bergstrom International Airport – Orlando International Airport | 1,596 | -1.7 min | 95.4% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 28 | 28 | 67.9% | 0 |
| November 2024 | 18 | 18 | 94.4% | 0 |
| December 2024 | 26 | 26 | 73.1% | 0 |
| January 2025 | 30 | 30 | 86.7% | 0 |
| February 2025 | 60 | 59 | 76.3% | 1 |
| March 2025 | 47 | 46 | 97.8% | 1 |
| April 2025 | 42 | 41 | 92.7% | 1 |
| May 2025 | 45 | 45 | 84.4% | 0 |
| June 2025 | 37 | 37 | 97.3% | 0 |
| July 2025 | 41 | 41 | 92.7% | 0 |
| August 2025 | 31 | 30 | 86.7% | 1 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 47 | 47 | 80.9% | 0 |
| November 2025 | 31 | 30 | 80.0% | 1 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 14 | 14 | 78.6% | 0 |
| February 2026 | 16 | 16 | 87.5% | 0 |
| March 2026 | 25 | 25 | 56.0% | 0 |
| April 2026 | 26 | 26 | 42.3% | 0 |
| May 2026 | 26 | 25 | 56.0% | 1 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 32 | 32 | 71.9% | 0 |