WN1245
WN1245 (Southwest Airlines) is a multi-stop service on 45 routes, busiest Chicago to San Jose. Of 623 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.
- On-time departures81.6%of 623 flights
- Average delay8.5 min
- July 20268▼ 78.4%vs July 2025
- Cancelled0.5%
- Legs flown under this number45
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 | 29 | 23 | ▼ 20.7% |
| February | 44 | 17 | ▼ 61.4% |
| March | 38 | 29 | ▼ 23.7% |
| April | 33 | 20 | ▼ 39.4% |
| May | 30 | 19 | ▼ 36.7% |
| June | 33 | 10 | ▼ 69.7% |
| July | 37 | 8 | ▼ 78.4% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 36 | – | – |
| December | 44 | – | – |
| Year to date (Jan–Jul) | 244 | 126 | ▼ 48.4% |
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 | 86.2% | 81.8% | ▼ 5.1% |
| February | 88.6% | 70.6% | ▼ 20.4% |
| March | 94.7% | 89.7% | ▼ 5.4% |
| April | 81.8% | 90.0% | ▲ 10.0% |
| May | 92.9% | 94.7% | ▲ 2.0% |
| June | 72.7% | 90.0% | ▲ 23.7% |
| July | 70.3% | 100.0% | ▲ 42.3% |
| August | 90.0% | – | – |
| September | 90.0% | – | – |
| October | 87.1% | – | in progress |
| November | 69.4% | – | – |
| December | 72.7% | – | – |
| Year-to-date average (Jan–Jul) | 83.9% | 88.1% | ▲ 5.0% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 2 | 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 | 1 | ▼ 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 99.5% 620
- Cancelled 0.5% 3
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PNS BNA Pensacola International Airport – Nashville International Airport | 630 | 4.5 min | 83.0% | 53 |
| MDW SJC Chicago Midway International Airport – Mineta San Jose International Airport | 2,950 | 8.3 min | 77.4% | 53 |
| HOU BNA William P. Hobby Airport – Nashville International Airport | 1,078 | -1.0 min | 95.2% | 42 |
| SMF LAX Sacramento International Airport – Los Angeles International Airport | 600 | -1.3 min | 94.1% | 34 |
| BOS BWI Boston Logan International Airport – Baltimore/Washington International Thurgood Marshall Airport | 594 | 3.9 min | 90.9% | 33 |
| COS DAL City of Colorado Springs Municipal Airport – Dallas Love Field | 969 | -0.1 min | 93.8% | 32 |
| TPA MDW Tampa International Airport – Chicago Midway International Airport | 1,607 | 14.1 min | 83.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 31 | 31 | 74.2% | 0 |
| December 2024 | 34 | 34 | 55.9% | 0 |
| January 2025 | 29 | 29 | 86.2% | 0 |
| February 2025 | 44 | 44 | 88.6% | 0 |
| March 2025 | 38 | 38 | 94.7% | 0 |
| April 2025 | 33 | 33 | 81.8% | 0 |
| May 2025 | 30 | 28 | 92.9% | 2 |
| June 2025 | 33 | 33 | 72.7% | 0 |
| July 2025 | 37 | 37 | 70.3% | 0 |
| August 2025 | 30 | 30 | 90.0% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 36 | 36 | 69.4% | 0 |
| December 2025 | 44 | 44 | 72.7% | 0 |
| January 2026 | 23 | 22 | 81.8% | 1 |
| February 2026 | 17 | 17 | 70.6% | 0 |
| March 2026 | 29 | 29 | 89.7% | 0 |
| April 2026 | 20 | 20 | 90.0% | 0 |
| May 2026 | 19 | 19 | 94.7% | 0 |
| June 2026 | 10 | 10 | 90.0% | 0 |
| July 2026 | 8 | 8 | 100.0% | 0 |