WN977
WN977 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Hartford to Baltimore. Of 785 departures recorded from October 2024 to July 2026, 69.4% left on time, according to the US BTS.
- On-time departures69.4%of 785 flights
- Average delay17.6 min
- July 202627▲ 28.6%vs July 2025
- Cancelled1.0%
- Legs flown under this number34
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 | 61 | 32 | ▼ 47.5% |
| February | 51 | 31 | ▼ 39.2% |
| March | 35 | 31 | ▼ 11.4% |
| April | 41 | 30 | ▼ 26.8% |
| May | 43 | 31 | ▼ 27.9% |
| June | 26 | 27 | ▲ 3.8% |
| July | 21 | 27 | ▲ 28.6% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 47 | – | in progress |
| November | 37 | – | – |
| December | 43 | – | – |
| Year to date (Jan–Jul) | 278 | 209 | ▼ 24.8% |
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 | 88.3% | 86.7% | ▼ 1.9% |
| February | 84.3% | 66.7% | ▼ 20.9% |
| March | 91.4% | 45.2% | ▼ 50.6% |
| April | 80.0% | 70.0% | ▼ 12.5% |
| May | 76.7% | 83.9% | ▲ 9.3% |
| June | 38.5% | 34.6% | ▼ 10.0% |
| July | 33.3% | 23.1% | ▼ 30.8% |
| August | 56.7% | – | – |
| September | 50.0% | – | – |
| October | 61.7% | – | in progress |
| November | 75.7% | – | – |
| December | 73.8% | – | – |
| Year-to-date average (Jan–Jul) | 70.4% | 58.6% | ▼ 16.8% |
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 | 2 | ▲ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 5 | ▲ 150.0% |
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 99.0% 777
- Cancelled 1.0% 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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 69.2% | 0 |
| November 2024 | 50 | 50 | 78.0% | 0 |
| December 2024 | 48 | 48 | 81.3% | 0 |
| January 2025 | 61 | 60 | 88.3% | 1 |
| February 2025 | 51 | 51 | 84.3% | 0 |
| March 2025 | 35 | 35 | 91.4% | 0 |
| April 2025 | 41 | 40 | 80.0% | 1 |
| May 2025 | 43 | 43 | 76.7% | 0 |
| June 2025 | 26 | 26 | 38.5% | 0 |
| July 2025 | 21 | 21 | 33.3% | 0 |
| August 2025 | 30 | 30 | 56.7% | 0 |
| September 2025 | 30 | 30 | 50.0% | 0 |
| October 2025 | 47 | 47 | 61.7% | 0 |
| November 2025 | 37 | 37 | 75.7% | 0 |
| December 2025 | 43 | 42 | 73.8% | 1 |
| January 2026 | 32 | 30 | 86.7% | 2 |
| February 2026 | 31 | 30 | 66.7% | 1 |
| March 2026 | 31 | 31 | 45.2% | 0 |
| April 2026 | 30 | 30 | 70.0% | 0 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 27 | 26 | 34.6% | 1 |
| July 2026 | 27 | 26 | 23.1% | 1 |