WN1378
WN1378 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Cleveland to Chicago. Of 635 departures recorded from October 2024 to July 2026, 75.4% left on time, according to the US BTS.
- On-time departures75.4%of 635 flights
- Average delay13.4 min
- July 202614▼ 54.8%vs July 2025
- Cancelled0.8%
- Legs flown under this number27
according to the US BTS · Oct 12, 2024 → Jul 26, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 30 | ▼ 3.2% |
| February | 32 | 25 | ▼ 21.9% |
| March | 33 | 31 | ▼ 6.1% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 19 | ▼ 36.7% |
| July | 31 | 14 | ▼ 54.8% |
| August | 42 | – | – |
| September | 43 | – | – |
| October | 31 | – | in progress |
| November | 20 | – | – |
| December | 17 | – | – |
| Year to date (Jan–Jul) | 218 | 180 | ▼ 17.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 89.3% | 66.7% | ▼ 25.3% |
| February | 75.0% | 72.0% | ▼ 4.0% |
| March | 87.9% | 64.5% | ▼ 26.6% |
| April | 86.7% | 86.7% | 0.0% |
| May | 93.6% | 93.6% | 0.0% |
| June | 53.3% | 42.1% | ▼ 21.0% |
| July | 45.2% | 14.3% | ▼ 68.4% |
| August | 77.5% | – | – |
| September | 74.4% | – | – |
| October | 51.6% | – | in progress |
| November | 90.0% | – | – |
| December | 82.4% | – | – |
| Year-to-date average (Jan–Jul) | 75.8% | 62.8% | ▼ 17.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 0 | ▼ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.2% 630
- Cancelled 0.8% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| CLE MDW Cleveland Hopkins International Airport – Chicago Midway International Airport | 493 | 0.0 min | 92.2% | 116 |
| HOU MSY William P. Hobby Airport – Louis Armstrong New Orleans International Airport | 485 | 5.5 min | 89.9% | 102 |
| BWI DEN Baltimore/Washington International Thurgood Marshall Airport – Denver International Airport | 2,394 | 44.3 min | 47.5% | 61 |
| DEN COS Denver International Airport – City of Colorado Springs Municipal Airport | 117 | 15.2 min | 73.2% | 58 |
| MCI SMF Kansas City International Airport – Sacramento International Airport | 2,315 | 10.2 min | 89.7% | 39 |
| MDW PHL Chicago Midway International Airport – Philadelphia International Airport | 1,073 | 18.4 min | 57.6% | 33 |
| BNA RSW Nashville International Airport – Southwest Florida International Airport | 1,164 | 15.2 min | 66.7% | 33 |
| BNA SFO Nashville International Airport – San Francisco International Airport | 3,161 | 18.1 min | 48.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 100.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 29 | 29 | 86.2% | 0 |
| January 2025 | 31 | 28 | 89.3% | 3 |
| February 2025 | 32 | 32 | 75.0% | 0 |
| March 2025 | 33 | 33 | 87.9% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 30 | 53.3% | 0 |
| July 2025 | 31 | 31 | 45.2% | 0 |
| August 2025 | 42 | 40 | 77.5% | 2 |
| September 2025 | 43 | 43 | 74.4% | 0 |
| October 2025 | 31 | 31 | 51.6% | 0 |
| November 2025 | 20 | 20 | 90.0% | 0 |
| December 2025 | 17 | 17 | 82.4% | 0 |
| January 2026 | 30 | 30 | 66.7% | 0 |
| February 2026 | 25 | 25 | 72.0% | 0 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 19 | 19 | 42.1% | 0 |
| July 2026 | 14 | 14 | 14.3% | 0 |