WN3807
WN3807 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Miami to Denver. Of 457 departures recorded from October 2024 to July 2026, 68.7% left on time, according to the US BTS.
- On-time departures68.7%of 457 flights
- Average delay16.4 min
- July 202626▼ 16.1%vs July 2025
- Cancelled0.7%
- Legs flown under this number20
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 18 | 5 | ▼ 72.2% |
| February | 22 | 7 | ▼ 68.2% |
| March | 14 | 19 | ▲ 35.7% |
| April | 6 | 36 | ▲ 500.0% |
| May | 4 | 43 | ▲ 975.0% |
| June | 27 | 27 | 0.0% |
| July | 31 | 26 | ▼ 16.1% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 23 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 122 | 163 | ▲ 33.6% |
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 periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.8% | 40.0% | ▼ 48.6% |
| February | 81.8% | 100.0% | ▲ 22.2% |
| March | 92.3% | 79.0% | ▼ 14.5% |
| April | 66.7% | 74.3% | ▲ 11.4% |
| May | 50.0% | 58.1% | ▲ 16.3% |
| June | 55.6% | 74.1% | ▲ 33.3% |
| July | 77.4% | 76.0% | ▼ 1.8% |
| August | 74.2% | – | – |
| September | 83.3% | – | – |
| October | 56.5% | – | in progress |
| November | 46.4% | – | – |
| December | 32.3% | – | – |
| Year-to-date average (Jan–Jul) | 71.7% | 71.6% | 0.0% |
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 periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 100.0% |
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 99.3% 454
- Cancelled 0.7% 3
Share of all recorded flights in the period, all legs. · Oct 12, 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 |
|---|---|---|---|---|
| MIA DEN Miami International Airport – Denver International Airport | 2,749 | 25.1 min | 39.1% | 64 |
| MSP DEN Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Denver International Airport | 1,092 | 13.4 min | 79.3% | 58 |
| OAK LAX Oakland San Francisco Bay Airport – Los Angeles International Airport | 543 | 15.4 min | 66.7% | 57 |
| PHX ONT Phoenix Sky Harbor International Airport – Ontario International Airport | 522 | 21.3 min | 61.5% | 52 |
| SMF ONT Sacramento International Airport – Ontario International Airport | 627 | 5.0 min | 82.9% | 42 |
| BWI RSW Baltimore/Washington International Thurgood Marshall Airport – Southwest Florida International Airport | 1,483 | 11.7 min | 82.9% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 84.0% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 18 | 18 | 77.8% | 0 |
| February 2025 | 22 | 22 | 81.8% | 0 |
| March 2025 | 14 | 13 | 92.3% | 1 |
| April 2025 | 6 | 6 | 66.7% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 27 | 27 | 55.6% | 0 |
| July 2025 | 31 | 31 | 77.4% | 0 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 23 | 23 | 56.5% | 0 |
| November 2025 | 28 | 28 | 46.4% | 0 |
| December 2025 | 31 | 31 | 32.3% | 0 |
| January 2026 | 5 | 5 | 40.0% | 0 |
| February 2026 | 7 | 7 | 100.0% | 0 |
| March 2026 | 19 | 19 | 79.0% | 0 |
| April 2026 | 36 | 35 | 74.3% | 1 |
| May 2026 | 43 | 43 | 58.1% | 0 |
| June 2026 | 27 | 27 | 74.1% | 0 |
| July 2026 | 26 | 25 | 76.0% | 1 |