WN3996
WN3996 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Fort Myers to Indianapolis. Of 461 departures recorded from October 2024 to July 2026, 77.1% left on time, according to the US BTS.
- On-time departures77.1%of 461 flights
- Average delay11.1 min
- July 20264
- Cancelled1.5%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 5 | ▼ 83.9% |
| February | 28 | 14 | ▼ 50.0% |
| March | 27 | 25 | ▼ 7.4% |
| April | 15 | 47 | ▲ 213.3% |
| May | 14 | 52 | ▲ 271.4% |
| June | 1 | 10 | ▲ 900.0% |
| July | – | 4 | – |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 1 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 69.0% | 80.0% | ▲ 16.0% |
| February | 60.7% | 50.0% | ▼ 17.6% |
| March | 84.0% | 41.7% | ▼ 50.4% |
| April | 78.6% | 83.0% | ▲ 5.6% |
| May | 100.0% | 76.9% | ▼ 23.1% |
| June | 100.0% | 100.0% | 0.0% |
| July | – | 75.0% | – |
| August | 59.3% | – | – |
| September | 70.0% | – | – |
| October | 100.0% | – | in progress |
| November | 92.9% | – | – |
| December | 96.7% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 2 | 1 | ▼ 50.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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 98.5% 454
- Cancelled 1.5% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| RSW IND Southwest Florida International Airport – Indianapolis International Airport | 1,525 | 14.8 min | 74.2% | 122 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | 0.6 min | 93.7% | 64 |
| SAN AUS San Diego International Airport – Austin Bergstrom International Airport | 1,871 | -0.7 min | 96.6% | 58 |
| PDX SJC Portland International Airport – Mineta San Jose International Airport | 916 | 16.4 min | 64.0% | 50 |
| AUS DCA Austin Bergstrom International Airport – Ronald Reagan Washington National Airport | 2,114 | 19.4 min | 59.5% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 31 | 31 | 77.4% | 0 |
| January 2025 | 31 | 29 | 69.0% | 2 |
| February 2025 | 28 | 28 | 60.7% | 0 |
| March 2025 | 27 | 25 | 84.0% | 2 |
| April 2025 | 15 | 14 | 78.6% | 1 |
| May 2025 | 14 | 14 | 100.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 27 | 27 | 59.3% | 0 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 28 | 28 | 92.9% | 0 |
| December 2025 | 31 | 30 | 96.7% | 1 |
| January 2026 | 5 | 5 | 80.0% | 0 |
| February 2026 | 14 | 14 | 50.0% | 0 |
| March 2026 | 25 | 24 | 41.7% | 1 |
| April 2026 | 47 | 47 | 83.0% | 0 |
| May 2026 | 52 | 52 | 76.9% | 0 |
| June 2026 | 10 | 10 | 100.0% | 0 |
| July 2026 | 4 | 4 | 75.0% | 0 |