WN770
WN770 (Southwest Airlines) is a multi-stop service on 43 routes, busiest San Diego to Chicago. Of 700 departures recorded from October 2024 to July 2026, 76.6% left on time, according to the US BTS.
- On-time departures76.6%of 700 flights
- Average delay13.7 min
- July 202641▲ 156.3%vs July 2025
- Cancelled1.3%
- Legs flown under this number43
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 | 28 | 38 | ▲ 35.7% |
| February | 18 | 49 | ▲ 172.2% |
| March | 36 | 34 | ▼ 5.6% |
| April | 26 | 27 | ▲ 3.8% |
| May | 21 | 27 | ▲ 28.6% |
| June | 19 | 37 | ▲ 94.7% |
| July | 16 | 41 | ▲ 156.3% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 50 | – | – |
| December | 63 | – | – |
| Year to date (Jan–Jul) | 164 | 253 | ▲ 54.3% |
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% | 92.1% | ▲ 7.5% |
| February | 83.3% | 83.7% | ▲ 0.4% |
| March | 94.4% | 71.9% | ▼ 23.9% |
| April | 87.5% | 88.5% | ▲ 1.1% |
| May | 90.5% | 85.2% | ▼ 5.8% |
| June | 42.1% | 40.5% | ▼ 3.7% |
| July | 37.5% | 41.5% | ▲ 10.6% |
| August | 70.0% | – | – |
| September | 93.3% | – | – |
| October | 100.0% | – | in progress |
| November | 64.6% | – | – |
| December | 66.7% | – | – |
| Year-to-date average (Jan–Jul) | 74.4% | 71.9% | ▼ 3.4% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 2 | 1 | ▼ 50.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 98.7% 691
- Cancelled 1.3% 9
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 | 17 | 17 | 82.4% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 32 | 30 | 96.7% | 2 |
| January 2025 | 28 | 28 | 85.7% | 0 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 36 | 36 | 94.4% | 0 |
| April 2025 | 26 | 24 | 87.5% | 2 |
| May 2025 | 21 | 21 | 90.5% | 0 |
| June 2025 | 19 | 19 | 42.1% | 0 |
| July 2025 | 16 | 16 | 37.5% | 0 |
| August 2025 | 30 | 30 | 70.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 50 | 48 | 64.6% | 2 |
| December 2025 | 63 | 63 | 66.7% | 0 |
| January 2026 | 38 | 38 | 92.1% | 0 |
| February 2026 | 49 | 49 | 83.7% | 0 |
| March 2026 | 34 | 32 | 71.9% | 2 |
| April 2026 | 27 | 26 | 88.5% | 1 |
| May 2026 | 27 | 27 | 85.2% | 0 |
| June 2026 | 37 | 37 | 40.5% | 0 |
| July 2026 | 41 | 41 | 41.5% | 0 |