WN1879
WN1879 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Baltimore to Providence. Of 675 departures recorded from October 2024 to July 2026, 66.9% left on time, according to the US BTS.
- On-time departures66.9%of 675 flights
- Average delay20.3 min
- July 202631▼ 13.9%vs July 2025
- Cancelled1.2%
- Legs flown under this number35
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 32 | 12 | ▼ 62.5% |
| February | 24 | 22 | ▼ 8.3% |
| March | 30 | 25 | ▼ 16.7% |
| April | 30 | 54 | ▲ 80.0% |
| May | 31 | 67 | ▲ 116.1% |
| June | 34 | 31 | ▼ 8.8% |
| July | 36 | 31 | ▼ 13.9% |
| August | 19 | – | – |
| September | 17 | – | – |
| October | 23 | – | in progress |
| November | 28 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 217 | 242 | ▲ 11.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 81.3% | 58.3% | ▼ 28.2% |
| February | 75.0% | 59.1% | ▼ 21.2% |
| March | 93.3% | 64.0% | ▼ 31.4% |
| April | 76.7% | 81.5% | ▲ 6.3% |
| May | 48.4% | 59.7% | ▲ 23.4% |
| June | 55.9% | 64.5% | ▲ 15.5% |
| July | 55.9% | 46.4% | ▼ 16.9% |
| August | 57.9% | – | – |
| September | 82.4% | – | – |
| October | 39.1% | – | in progress |
| November | 72.0% | – | – |
| December | 50.0% | – | – |
| Year-to-date average (Jan–Jul) | 69.5% | 61.9% | ▼ 10.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 3 | ▲ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 667
- Cancelled 1.2% 8
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI PVD Baltimore/Washington International Thurgood Marshall Airport – Rhode Island T. F. Green International Airport | 526 | 26.1 min | 66.0% | 96 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 38.4 min | 53.5% | 58 |
| OMA DEN Eppley Airfield – Denver International Airport | 758 | 20.0 min | 66.7% | 57 |
| PHX BUR Phoenix Sky Harbor International Airport – Hollywood Burbank/Bob Hope Airport | 593 | 13.1 min | 76.0% | 50 |
| BWI BDL Baltimore/Washington International Thurgood Marshall Airport – Bradley International Airport | 455 | 30.4 min | 51.1% | 50 |
| DEN OAK Denver International Airport – Oakland San Francisco Bay Airport | 1,537 | 20.9 min | 59.5% | 45 |
| OAK OGG Oakland San Francisco Bay Airport – Kahului International Airport | 3,777 | -2.9 min | 97.0% | 33 |
| BNA OMA Nashville International Airport – Eppley Airfield | 985 | 13.3 min | 64.5% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 100.0% | 0 |
| November 2024 | 38 | 38 | 81.6% | 0 |
| December 2024 | 53 | 53 | 66.0% | 0 |
| January 2025 | 32 | 32 | 81.3% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 30 | 30 | 93.3% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 31 | 31 | 48.4% | 0 |
| June 2025 | 34 | 34 | 55.9% | 0 |
| July 2025 | 36 | 34 | 55.9% | 2 |
| August 2025 | 19 | 19 | 57.9% | 0 |
| September 2025 | 17 | 17 | 82.4% | 0 |
| October 2025 | 23 | 23 | 39.1% | 0 |
| November 2025 | 28 | 25 | 72.0% | 3 |
| December 2025 | 22 | 22 | 50.0% | 0 |
| January 2026 | 12 | 12 | 58.3% | 0 |
| February 2026 | 22 | 22 | 59.1% | 0 |
| March 2026 | 25 | 25 | 64.0% | 0 |
| April 2026 | 54 | 54 | 81.5% | 0 |
| May 2026 | 67 | 67 | 59.7% | 0 |
| June 2026 | 31 | 31 | 64.5% | 0 |
| July 2026 | 31 | 28 | 46.4% | 3 |