WN819
WN819 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Rochester to Baltimore. Of 678 departures recorded from October 2024 to July 2026, 70.0% left on time, according to the US BTS.
- On-time departures70.0%of 678 flights
- Average delay16.3 min
- July 202639▲ 25.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number34
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 34 | 30 | ▼ 11.8% |
| February | 30 | 25 | ▼ 16.7% |
| March | 27 | 27 | 0.0% |
| April | 40 | 26 | ▼ 35.0% |
| May | 43 | 27 | ▼ 37.2% |
| June | 32 | 38 | ▲ 18.8% |
| July | 31 | 39 | ▲ 25.8% |
| August | 39 | – | – |
| September | 39 | – | – |
| October | 32 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 237 | 212 | ▼ 10.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 82.4% | 70.0% | ▼ 15.0% |
| February | 66.7% | 72.0% | ▲ 8.0% |
| March | 69.2% | 81.5% | ▲ 17.7% |
| April | 80.0% | 76.9% | ▼ 3.8% |
| May | 88.4% | 63.0% | ▼ 28.8% |
| June | 48.4% | 52.6% | ▲ 8.8% |
| July | 20.0% | 65.8% | ▲ 229.0% |
| August | 64.1% | – | – |
| September | 73.7% | – | – |
| October | 90.6% | – | in progress |
| November | 57.9% | – | – |
| December | 86.7% | – | – |
| Year-to-date average (Jan–Jul) | 65.0% | 68.8% | ▲ 5.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
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 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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% 673
- Cancelled 0.7% 5
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 |
|---|---|---|---|---|
| ROC BWI Frederick Douglass Greater Rochester International Airport – Baltimore/Washington International Thurgood Marshall Airport | 447 | 11.5 min | 76.2% | 102 |
| DEN BDL Denver International Airport – Bradley International Airport | 2,683 | 61.1 min | 28.8% | 61 |
| BUR PHX Hollywood Burbank/Bob Hope Airport – Phoenix Sky Harbor International Airport | 593 | 13.4 min | 66.1% | 57 |
| BNA TPA Nashville International Airport – Tampa International Airport | 987 | 20.2 min | 68.0% | 50 |
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | -3.4 min | 95.2% | 42 |
| DAL AUS Dallas Love Field – Austin Bergstrom International Airport | 304 | 23.9 min | 73.2% | 42 |
| STL BNA St. Louis Lambert International Airport – Nashville International Airport | 437 | 21.1 min | 63.9% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 70.8% | 0 |
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 31 | 31 | 71.0% | 0 |
| January 2025 | 34 | 34 | 82.4% | 0 |
| February 2025 | 30 | 30 | 66.7% | 0 |
| March 2025 | 27 | 26 | 69.2% | 1 |
| April 2025 | 40 | 40 | 80.0% | 0 |
| May 2025 | 43 | 43 | 88.4% | 0 |
| June 2025 | 32 | 31 | 48.4% | 1 |
| July 2025 | 31 | 30 | 20.0% | 1 |
| August 2025 | 39 | 39 | 64.1% | 0 |
| September 2025 | 39 | 38 | 73.7% | 1 |
| October 2025 | 32 | 32 | 90.6% | 0 |
| November 2025 | 19 | 19 | 57.9% | 0 |
| December 2025 | 15 | 15 | 86.7% | 0 |
| January 2026 | 30 | 30 | 70.0% | 0 |
| February 2026 | 25 | 25 | 72.0% | 0 |
| March 2026 | 27 | 27 | 81.5% | 0 |
| April 2026 | 26 | 26 | 76.9% | 0 |
| May 2026 | 27 | 27 | 63.0% | 0 |
| June 2026 | 38 | 38 | 52.6% | 0 |
| July 2026 | 39 | 38 | 65.8% | 1 |