WN1077
WN1077 (Southwest Airlines) is a multi-stop service on 30 routes, busiest San Juan to Baltimore. Of 653 departures recorded from October 2024 to July 2026, 84.4% left on time, according to the US BTS.
- On-time departures84.4%of 653 flights
- Average delay7.2 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number30
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 | 29 | 30 | ▲ 3.4% |
| February | 44 | 28 | ▼ 36.4% |
| March | 33 | 19 | ▼ 42.4% |
| April | 30 | 38 | ▲ 26.7% |
| May | 32 | 43 | ▲ 34.4% |
| June | 30 | 32 | ▲ 6.7% |
| July | 31 | 31 | 0.0% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 27 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 229 | 221 | ▼ 3.5% |
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 | 89.7% | 67.9% | ▼ 24.3% |
| February | 74.4% | 75.0% | ▲ 0.8% |
| March | 84.4% | 68.4% | ▼ 18.9% |
| April | 73.3% | 76.3% | ▲ 4.1% |
| May | 78.1% | 83.7% | ▲ 7.2% |
| June | 93.3% | 78.1% | ▼ 16.3% |
| July | 90.3% | 96.8% | ▲ 7.1% |
| August | 85.2% | – | – |
| September | 80.8% | – | – |
| October | 96.3% | – | in progress |
| November | 90.0% | – | – |
| December | 96.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.4% | 78.0% | ▼ 6.4% |
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 | 2 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.4% 649
- Cancelled 0.6% 4
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJU BWI Luis Munoz Marin International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,525 | 5.6 min | 91.8% | 61 |
| HOU SLC William P. Hobby Airport – Salt Lake City International Airport | 1,953 | 11.7 min | 74.1% | 58 |
| TYS BWI McGhee Tyson Airport – Baltimore/Washington International Thurgood Marshall Airport | 746 | 5.7 min | 91.2% | 57 |
| BNA JAX Nashville International Airport – Jacksonville International Airport | 779 | 7.2 min | 82.0% | 50 |
| DAL BNA Dallas Love Field – Nashville International Airport | 1,000 | -0.1 min | 95.7% | 47 |
| TPA BNA Tampa International Airport – Nashville International Airport | 987 | 2.6 min | 93.2% | 44 |
| MIA BNA Miami International Airport – Nashville International Airport | 1,299 | 10.4 min | 87.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 24 | 24 | 95.8% | 0 |
| December 2024 | 19 | 19 | 100.0% | 0 |
| January 2025 | 29 | 29 | 89.7% | 0 |
| February 2025 | 44 | 43 | 74.4% | 1 |
| March 2025 | 33 | 32 | 84.4% | 1 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 32 | 32 | 78.1% | 0 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 31 | 90.3% | 0 |
| August 2025 | 27 | 27 | 85.2% | 0 |
| September 2025 | 26 | 26 | 80.8% | 0 |
| October 2025 | 27 | 27 | 96.3% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 30 | 30 | 96.7% | 0 |
| January 2026 | 30 | 28 | 67.9% | 2 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 19 | 19 | 68.4% | 0 |
| April 2026 | 38 | 38 | 76.3% | 0 |
| May 2026 | 43 | 43 | 83.7% | 0 |
| June 2026 | 32 | 32 | 78.1% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |