WN4349
WN4349 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Chicago to Hartford. Of 361 departures recorded from October 2024 to July 2026, 75.1% left on time, according to the US BTS.
- On-time departures75.1%of 361 flights
- Average delay14.5 min
- July 202625
- Cancelled0.8%
- Legs flown under this number17
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 | 11 | 28 | ▲ 154.5% |
| February | 15 | 38 | ▲ 153.3% |
| March | 24 | 20 | ▼ 16.7% |
| April | 26 | 3 | ▼ 88.5% |
| May | 27 | – | – |
| June | 3 | 22 | ▲ 633.3% |
| July | – | 25 | – |
| August | 18 | – | – |
| September | 21 | – | – |
| October | – | – | in progress |
| November | 5 | – | – |
| December | 4 | – | – |
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 | 72.7% | 100.0% | ▲ 37.5% |
| February | 80.0% | 94.7% | ▲ 18.4% |
| March | 58.3% | 95.0% | ▲ 62.9% |
| April | 56.0% | 100.0% | ▲ 78.6% |
| May | 46.2% | – | – |
| June | 66.7% | 63.6% | ▼ 4.5% |
| July | – | 50.0% | – |
| August | 83.3% | – | – |
| September | 85.7% | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | 100.0% | – | – |
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 | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | – | – |
| June | 0 | 0 | – |
| July | – | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | 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% 358
- Cancelled 0.8% 3
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW BDL Chicago Midway International Airport – Bradley International Airport | 1,246 | 20.8 min | 71.6% | 81 |
| PHX SAN Phoenix Sky Harbor International Airport – San Diego International Airport | 489 | -1.7 min | 96.4% | 55 |
| DEN BUR Denver International Airport – Hollywood Burbank/Bob Hope Airport | 1,366 | 36.0 min | 52.1% | 50 |
| SMF SEA Sacramento International Airport – Seattle–Tacoma International Airport | 975 | 7.7 min | 84.6% | 39 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 26 | 26 | 69.2% | 0 |
| December 2024 | 28 | 28 | 67.9% | 0 |
| January 2025 | 11 | 11 | 72.7% | 0 |
| February 2025 | 15 | 15 | 80.0% | 0 |
| March 2025 | 24 | 24 | 58.3% | 0 |
| April 2025 | 26 | 25 | 56.0% | 1 |
| May 2025 | 27 | 26 | 46.2% | 1 |
| June 2025 | 3 | 3 | 66.7% | 0 |
| August 2025 | 18 | 18 | 83.3% | 0 |
| September 2025 | 21 | 21 | 85.7% | 0 |
| November 2025 | 5 | 5 | 100.0% | 0 |
| December 2025 | 4 | 4 | 100.0% | 0 |
| January 2026 | 28 | 28 | 100.0% | 0 |
| February 2026 | 38 | 38 | 94.7% | 0 |
| March 2026 | 20 | 20 | 95.0% | 0 |
| April 2026 | 3 | 3 | 100.0% | 0 |
| June 2026 | 22 | 22 | 63.6% | 0 |
| July 2026 | 25 | 24 | 50.0% | 1 |