WN4287
WN4287 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Albany to Baltimore. Of 343 departures recorded from October 2024 to July 2026, 80.2% left on time, according to the US BTS.
- On-time departures80.2%of 343 flights
- Average delay9.6 min
- July 202627▲ 237.5%vs July 2025
- Cancelled2.9%
- Legs flown under this number22
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 | 1 | 30 | ▲ 2,900.0% |
| February | 2 | 49 | ▲ 2,350.0% |
| March | 1 | 19 | ▲ 1,800.0% |
| April | 14 | 3 | ▼ 78.6% |
| May | 17 | 1 | ▼ 94.1% |
| June | 11 | 23 | ▲ 109.1% |
| July | 8 | 27 | ▲ 237.5% |
| August | 39 | – | – |
| September | 42 | – | – |
| October | – | – | in progress |
| November | 19 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 54 | 152 | ▲ 181.5% |
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 | 100.0% | 88.9% | ▼ 11.1% |
| February | 100.0% | 85.4% | ▼ 14.6% |
| March | 100.0% | 68.4% | ▼ 31.6% |
| April | 92.9% | 100.0% | ▲ 7.7% |
| May | 100.0% | 0.0% | ▼ 100.0% |
| June | 45.5% | 69.6% | ▲ 53.1% |
| July | 42.9% | 80.0% | ▲ 86.7% |
| August | 87.2% | – | – |
| September | 100.0% | – | – |
| October | – | – | in progress |
| November | 55.6% | – | – |
| December | 46.2% | – | – |
| Year-to-date average (Jan–Jul) | 83.0% | 70.3% | ▼ 15.3% |
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 | 0 | 3 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 6 | ▲ 200.0% |
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 97.1% 333
- Cancelled 2.9% 10
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ALB BWI Albany International Airport – Baltimore/Washington International Thurgood Marshall Airport | 464 | 3.7 min | 89.4% | 50 |
| SLC SJC Salt Lake City International Airport – Mineta San Jose International Airport | 939 | 5.4 min | 92.1% | 39 |
| SDF HOU Louisville Muhammad Ali International Airport – William P. Hobby Airport | 1,292 | 26.7 min | 51.5% | 34 |
| MDW SAV Chicago Midway International Airport – Savannah Hilton Head International Airport | 1,221 | -0.8 min | 97.0% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 64.7% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 14 | 14 | 92.9% | 0 |
| May 2025 | 17 | 16 | 100.0% | 1 |
| June 2025 | 11 | 11 | 45.5% | 0 |
| July 2025 | 8 | 7 | 42.9% | 1 |
| August 2025 | 39 | 39 | 87.2% | 0 |
| September 2025 | 42 | 41 | 100.0% | 1 |
| November 2025 | 19 | 18 | 55.6% | 1 |
| December 2025 | 13 | 13 | 46.2% | 0 |
| January 2026 | 30 | 27 | 88.9% | 3 |
| February 2026 | 49 | 48 | 85.4% | 1 |
| March 2026 | 19 | 19 | 68.4% | 0 |
| April 2026 | 3 | 3 | 100.0% | 0 |
| May 2026 | 1 | 1 | 0.0% | 0 |
| June 2026 | 23 | 23 | 69.6% | 0 |
| July 2026 | 27 | 25 | 80.0% | 2 |