WN3935
WN3935 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Chicago to Sarasota. Of 526 departures recorded from October 2024 to July 2026, 72.8% left on time, according to the US BTS.
- On-time departures72.8%of 526 flights
- Average delay13.4 min
- July 202627▲ 3.8%vs July 2025
- Cancelled0.8%
- Legs flown under this number24
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 4 | ▲ 100.0% |
| February | – | – | – |
| March | 4 | – | – |
| April | 41 | 48 | ▲ 17.1% |
| May | 49 | 62 | ▲ 26.5% |
| June | 31 | 29 | ▼ 6.5% |
| July | 26 | 27 | ▲ 3.8% |
| August | 44 | – | – |
| September | 47 | – | – |
| October | 38 | – | in progress |
| November | 20 | – | – |
| December | 17 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 75.0% | ▲ 50.0% |
| February | – | – | – |
| March | 100.0% | – | – |
| April | 85.4% | 70.8% | ▼ 17.0% |
| May | 73.5% | 72.6% | ▼ 1.2% |
| June | 64.5% | 13.8% | ▼ 78.6% |
| July | 64.0% | 15.4% | ▼ 76.0% |
| August | 81.8% | – | – |
| September | 82.2% | – | – |
| October | 84.2% | – | in progress |
| November | 100.0% | – | – |
| December | 94.1% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | – | – |
| March | 0 | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 2 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
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% 522
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW SRQ Chicago Midway International Airport – Sarasota Bradenton International Airport | 1,669 | 24.6 min | 60.0% | 51 |
| STL LAS St. Louis Lambert International Airport – Harry Reid International Airport | 2,202 | 56.7 min | 10.2% | 50 |
| DAL SAT Dallas Love Field – San Antonio International Airport | 399 | 7.6 min | 70.0% | 50 |
| SAT HOU San Antonio International Airport – William P. Hobby Airport | 309 | 15.7 min | 65.3% | 49 |
| PHX SJC Phoenix Sky Harbor International Airport – Mineta San Jose International Airport | 999 | 8.5 min | 79.2% | 49 |
| BUR MDW Hollywood Burbank/Bob Hope Airport – Chicago Midway International Airport | 2,794 | 2.5 min | 88.1% | 42 |
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | 1.2 min | 94.9% | 39 |
| OMA PHX Eppley Airfield – Phoenix Sky Harbor International Airport | 1,667 | 4.9 min | 87.1% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 8 | 8 | 100.0% | 0 |
| December 2024 | 12 | 12 | 100.0% | 0 |
| January 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 41 | 41 | 85.4% | 0 |
| May 2025 | 49 | 49 | 73.5% | 0 |
| June 2025 | 31 | 31 | 64.5% | 0 |
| July 2025 | 26 | 25 | 64.0% | 1 |
| August 2025 | 44 | 44 | 81.8% | 0 |
| September 2025 | 47 | 45 | 82.2% | 2 |
| October 2025 | 38 | 38 | 84.2% | 0 |
| November 2025 | 20 | 20 | 100.0% | 0 |
| December 2025 | 17 | 17 | 94.1% | 0 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 48 | 48 | 70.8% | 0 |
| May 2026 | 62 | 62 | 72.6% | 0 |
| June 2026 | 29 | 29 | 13.8% | 0 |
| July 2026 | 27 | 26 | 15.4% | 1 |