WN1277
WN1277 (Southwest Airlines) is a multi-stop service on 41 routes, busiest Nashville to Portland. Of 858 departures recorded from October 2024 to July 2026, 78.4% left on time, according to the US BTS.
- On-time departures78.4%of 858 flights
- Average delay13.5 min
- July 202681▲ 161.3%vs July 2025
- Cancelled0.2%
- Legs flown under this number41
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 | 49 | 10 | ▼ 79.6% |
| February | 43 | 18 | ▼ 58.1% |
| March | 33 | 29 | ▼ 12.1% |
| April | 72 | 30 | ▼ 58.3% |
| May | 96 | 30 | ▼ 68.8% |
| June | 35 | 79 | ▲ 125.7% |
| July | 31 | 81 | ▲ 161.3% |
| August | 23 | – | – |
| September | 22 | – | – |
| October | 22 | – | in progress |
| November | 31 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 359 | 277 | ▼ 22.8% |
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 | 85.7% | 60.0% | ▼ 30.0% |
| February | 81.4% | 55.6% | ▼ 31.7% |
| March | 68.8% | 69.0% | ▲ 0.3% |
| April | 75.0% | 93.3% | ▲ 24.4% |
| May | 82.1% | 100.0% | ▲ 21.8% |
| June | 65.7% | 78.5% | ▲ 19.4% |
| July | 67.7% | 85.2% | ▲ 25.8% |
| August | 87.0% | – | – |
| September | 95.5% | – | – |
| October | 68.2% | – | in progress |
| November | 64.5% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 75.2% | 77.4% | ▲ 2.9% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 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 99.8% 856
- Cancelled 0.2% 2
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 33 | 33 | 87.9% | 0 |
| December 2024 | 40 | 40 | 65.0% | 0 |
| January 2025 | 49 | 49 | 85.7% | 0 |
| February 2025 | 43 | 43 | 81.4% | 0 |
| March 2025 | 33 | 32 | 68.8% | 1 |
| April 2025 | 72 | 72 | 75.0% | 0 |
| May 2025 | 96 | 95 | 82.1% | 1 |
| June 2025 | 35 | 35 | 65.7% | 0 |
| July 2025 | 31 | 31 | 67.7% | 0 |
| August 2025 | 23 | 23 | 87.0% | 0 |
| September 2025 | 22 | 22 | 95.5% | 0 |
| October 2025 | 22 | 22 | 68.2% | 0 |
| November 2025 | 31 | 31 | 64.5% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 10 | 10 | 60.0% | 0 |
| February 2026 | 18 | 18 | 55.6% | 0 |
| March 2026 | 29 | 29 | 69.0% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 30 | 30 | 100.0% | 0 |
| June 2026 | 79 | 79 | 78.5% | 0 |
| July 2026 | 81 | 81 | 85.2% | 0 |