WN3908
WN3908 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Tampa to Washington. Of 537 departures recorded from October 2024 to July 2026, 68.8% left on time, according to the US BTS.
- On-time departures68.8%of 537 flights
- Average delay22.5 min
- July 202630▲ 25.0%vs July 2025
- Cancelled1.5%
- Legs flown under this number21
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 | 44 | 6 | ▼ 86.4% |
| February | 38 | – | – |
| March | 19 | 7 | ▼ 63.2% |
| April | 9 | 41 | ▲ 355.6% |
| May | 9 | 47 | ▲ 422.2% |
| June | 19 | 34 | ▲ 78.9% |
| July | 24 | 30 | ▲ 25.0% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
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 | 92.7% | 50.0% | ▼ 46.1% |
| February | 76.3% | – | – |
| March | 66.7% | 42.9% | ▼ 35.7% |
| April | 66.7% | 90.2% | ▲ 35.4% |
| May | 55.6% | 87.2% | ▲ 57.0% |
| June | 52.6% | 41.2% | ▼ 21.8% |
| July | 52.2% | 37.9% | ▼ 27.3% |
| August | 100.0% | – | – |
| September | 96.7% | – | – |
| October | 26.7% | – | in progress |
| November | 57.1% | – | – |
| December | 44.8% | – | – |
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 | 3 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| 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 98.5% 529
- Cancelled 1.5% 8
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| TPA DCA Tampa International Airport – Ronald Reagan Washington National Airport | 1,312 | 20.4 min | 78.4% | 90 |
| OGG PHX Kahului International Airport – Phoenix Sky Harbor International Airport | 4,573 | -2.4 min | 98.3% | 58 |
| STL DCA St. Louis Lambert International Airport – Ronald Reagan Washington National Airport | 1,154 | 43.1 min | 32.1% | 57 |
| BOS BNA Boston Logan International Airport – Nashville International Airport | 1,514 | 16.1 min | 94.0% | 50 |
| OAK SAN Oakland San Francisco Bay Airport – San Diego International Airport | 718 | 23.8 min | 50.0% | 45 |
| MDW ROC Chicago Midway International Airport – Frederick Douglass Greater Rochester International Airport | 840 | 38.1 min | 52.4% | 43 |
| BOS DEN Boston Logan International Airport – Denver International Airport | 2,816 | 51.5 min | 23.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 100.0% | 0 |
| November 2024 | 17 | 17 | 82.4% | 0 |
| December 2024 | 34 | 34 | 67.7% | 0 |
| January 2025 | 44 | 41 | 92.7% | 3 |
| February 2025 | 38 | 38 | 76.3% | 0 |
| March 2025 | 19 | 18 | 66.7% | 1 |
| April 2025 | 9 | 9 | 66.7% | 0 |
| May 2025 | 9 | 9 | 55.6% | 0 |
| June 2025 | 19 | 19 | 52.6% | 0 |
| July 2025 | 24 | 23 | 52.2% | 1 |
| August 2025 | 29 | 29 | 100.0% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 30 | 26.7% | 1 |
| November 2025 | 29 | 28 | 57.1% | 1 |
| December 2025 | 29 | 29 | 44.8% | 0 |
| January 2026 | 6 | 6 | 50.0% | 0 |
| March 2026 | 7 | 7 | 42.9% | 0 |
| April 2026 | 41 | 41 | 90.2% | 0 |
| May 2026 | 47 | 47 | 87.2% | 0 |
| June 2026 | 34 | 34 | 41.2% | 0 |
| July 2026 | 30 | 29 | 37.9% | 1 |