WN3603
WN3603 (Southwest Airlines) is a multi-stop service on 15 routes, busiest Tampa to St Louis. Of 429 departures recorded from November 2024 to July 2026, 76.5% left on time, according to the US BTS.
- On-time departures76.5%of 429 flights
- Average delay11.3 min
- July 202627▼ 12.9%vs July 2025
- Cancelled0.7%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 26 | – | – |
| February | 21 | – | – |
| March | 23 | 4 | ▼ 82.6% |
| April | 37 | 18 | ▼ 51.4% |
| May | 36 | 12 | ▼ 66.7% |
| June | 29 | 25 | ▼ 13.8% |
| July | 31 | 27 | ▼ 12.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 19 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · November 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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.5% | – | – |
| February | 71.4% | – | – |
| March | 82.6% | 25.0% | ▼ 69.7% |
| April | 54.1% | 88.9% | ▲ 64.5% |
| May | 61.1% | 91.7% | ▲ 50.0% |
| June | 93.1% | 72.0% | ▼ 22.7% |
| July | 87.1% | 85.2% | ▼ 2.2% |
| August | 70.0% | – | – |
| September | 90.0% | – | – |
| October | 63.2% | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | – | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · November 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 99.3% 426
- Cancelled 0.7% 3
Share of all recorded flights in the period, all legs. · Nov 3, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA STL Tampa International Airport – St. Louis Lambert International Airport | 1,400 | 10.1 min | 80.4% | 104 |
| LIH HNL Lihue Airport – Daniel K. Inouye International Airport | 163 | 8.4 min | 90.2% | 61 |
| MCO ORD Orlando International Airport – Chicago O'Hare International Airport | 1,620 | 15.8 min | 80.7% | 58 |
| SBA SMF Santa Barbara Municipal Airport – Sacramento International Airport | 500 | 2.3 min | 78.0% | 50 |
| LAS MDW Harry Reid International Airport – Chicago Midway International Airport | 2,442 | 22.3 min | 42.6% | 47 |
| STL MCO St. Louis Lambert International Airport – Orlando International Airport | 1,420 | 1.3 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 27 | 27 | 96.3% | 0 |
| December 2024 | 33 | 33 | 60.6% | 0 |
| January 2025 | 26 | 24 | 87.5% | 2 |
| February 2025 | 21 | 21 | 71.4% | 0 |
| March 2025 | 23 | 23 | 82.6% | 0 |
| April 2025 | 37 | 37 | 54.1% | 0 |
| May 2025 | 36 | 36 | 61.1% | 0 |
| June 2025 | 29 | 29 | 93.1% | 0 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 31 | 30 | 70.0% | 1 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 19 | 19 | 63.2% | 0 |
| March 2026 | 4 | 4 | 25.0% | 0 |
| April 2026 | 18 | 18 | 88.9% | 0 |
| May 2026 | 12 | 12 | 91.7% | 0 |
| June 2026 | 25 | 25 | 72.0% | 0 |
| July 2026 | 27 | 27 | 85.2% | 0 |