WN1580
WN1580 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Baltimore to Albany. Of 649 departures recorded from October 2024 to July 2026, 77.8% left on time, according to the US BTS.
- On-time departures77.8%of 649 flights
- Average delay12.3 min
- July 202619▲ 5.6%vs July 2025
- Cancelled0.9%
- Legs flown under this number36
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 | 28 | 30 | ▲ 7.1% |
| February | 30 | 32 | ▲ 6.7% |
| March | 64 | 64 | 0.0% |
| April | 41 | 32 | ▼ 22.0% |
| May | 35 | 22 | ▼ 37.1% |
| June | 18 | 19 | ▲ 5.6% |
| July | 18 | 19 | ▲ 5.6% |
| August | 40 | – | – |
| September | 43 | – | – |
| October | 26 | – | in progress |
| November | 31 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 234 | 218 | ▼ 6.8% |
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 | 81.5% | 76.7% | ▼ 5.9% |
| February | 83.3% | 59.4% | ▼ 28.7% |
| March | 82.3% | 76.2% | ▼ 7.4% |
| April | 87.8% | 87.5% | ▼ 0.3% |
| May | 62.9% | 81.8% | ▲ 30.2% |
| June | 72.2% | 68.4% | ▼ 5.3% |
| July | 55.6% | 79.0% | ▲ 42.1% |
| August | 92.3% | – | – |
| September | 86.1% | – | – |
| October | 57.7% | – | in progress |
| November | 90.0% | – | – |
| December | 81.3% | – | – |
| Year-to-date average (Jan–Jul) | 75.1% | 75.6% | ▲ 0.7% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 2 | 1 | ▼ 50.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| 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 99.1% 643
- Cancelled 0.9% 6
Share of all recorded flights in the period, all legs. · Oct 14, 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 |
|---|---|---|---|---|
| BWI ALB Baltimore/Washington International Thurgood Marshall Airport – Albany International Airport | 464 | 2.3 min | 86.9% | 62 |
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | 5.4 min | 94.7% | 58 |
| PIT MDW Pittsburgh International Airport – Chicago Midway International Airport | 646 | 16.5 min | 73.7% | 57 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 15.7 min | 63.6% | 55 |
| DAL MCO Dallas Love Field – Orlando International Airport | 1,564 | 3.6 min | 88.1% | 42 |
| DEN LGB Denver International Airport – Long Beach International Airport | 1,373 | 11.5 min | 70.6% | 34 |
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | 18.7 min | 63.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 75.0% | 0 |
| November 2024 | 6 | 6 | 100.0% | 0 |
| December 2024 | 11 | 11 | 36.4% | 0 |
| January 2025 | 28 | 27 | 81.5% | 1 |
| February 2025 | 30 | 30 | 83.3% | 0 |
| March 2025 | 64 | 62 | 82.3% | 2 |
| April 2025 | 41 | 41 | 87.8% | 0 |
| May 2025 | 35 | 35 | 62.9% | 0 |
| June 2025 | 18 | 18 | 72.2% | 0 |
| July 2025 | 18 | 18 | 55.6% | 0 |
| August 2025 | 40 | 39 | 92.3% | 1 |
| September 2025 | 43 | 43 | 86.1% | 0 |
| October 2025 | 26 | 26 | 57.7% | 0 |
| November 2025 | 31 | 30 | 90.0% | 1 |
| December 2025 | 32 | 32 | 81.3% | 0 |
| January 2026 | 30 | 30 | 76.7% | 0 |
| February 2026 | 32 | 32 | 59.4% | 0 |
| March 2026 | 64 | 63 | 76.2% | 1 |
| April 2026 | 32 | 32 | 87.5% | 0 |
| May 2026 | 22 | 22 | 81.8% | 0 |
| June 2026 | 19 | 19 | 68.4% | 0 |
| July 2026 | 19 | 19 | 79.0% | 0 |