WN1554
WN1554 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Boston to Baltimore. Of 726 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 726 flights
- Average delay9.4 min
- July 202627▼ 12.9%vs July 2025
- Cancelled1.4%
- Legs flown under this number31
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 | 33 | 29 | ▼ 12.1% |
| February | 31 | 24 | ▼ 22.6% |
| March | 31 | 53 | ▲ 71.0% |
| April | 47 | 33 | ▼ 29.8% |
| May | 52 | 35 | ▼ 32.7% |
| June | 32 | 25 | ▼ 21.9% |
| July | 31 | 27 | ▼ 12.9% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 34 | – | in progress |
| November | 28 | – | – |
| December | 48 | – | – |
| Year to date (Jan–Jul) | 257 | 226 | ▼ 12.1% |
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 | 100.0% | 89.7% | ▼ 10.3% |
| February | 77.4% | 87.5% | ▲ 13.0% |
| March | 93.6% | 66.0% | ▼ 29.4% |
| April | 91.5% | 42.4% | ▼ 53.6% |
| May | 92.3% | 42.9% | ▼ 53.6% |
| June | 83.9% | 66.7% | ▼ 20.5% |
| July | 90.3% | 77.8% | ▼ 13.9% |
| August | 88.9% | – | – |
| September | 92.0% | – | – |
| October | 76.5% | – | in progress |
| November | 92.0% | – | – |
| December | 70.8% | – | – |
| Year-to-date average (Jan–Jul) | 89.9% | 67.6% | ▼ 24.8% |
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 | 0 | 3 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 98.6% 716
- Cancelled 1.4% 10
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 100.0% | 0 |
| November 2024 | 28 | 28 | 100.0% | 0 |
| December 2024 | 29 | 29 | 93.1% | 0 |
| January 2025 | 33 | 32 | 100.0% | 1 |
| February 2025 | 31 | 31 | 77.4% | 0 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 47 | 47 | 91.5% | 0 |
| May 2025 | 52 | 52 | 92.3% | 0 |
| June 2025 | 32 | 31 | 83.9% | 1 |
| July 2025 | 31 | 31 | 90.3% | 0 |
| August 2025 | 27 | 27 | 88.9% | 0 |
| September 2025 | 26 | 25 | 92.0% | 1 |
| October 2025 | 34 | 34 | 76.5% | 0 |
| November 2025 | 28 | 25 | 92.0% | 3 |
| December 2025 | 48 | 48 | 70.8% | 0 |
| January 2026 | 29 | 29 | 89.7% | 0 |
| February 2026 | 24 | 24 | 87.5% | 0 |
| March 2026 | 53 | 50 | 66.0% | 3 |
| April 2026 | 33 | 33 | 42.4% | 0 |
| May 2026 | 35 | 35 | 42.9% | 0 |
| June 2026 | 25 | 24 | 66.7% | 1 |
| July 2026 | 27 | 27 | 77.8% | 0 |