WN1739
WN1739 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Chicago to Kansas City. Of 698 departures recorded from October 2024 to July 2026, 79.9% left on time, according to the US BTS.
- On-time departures79.9%of 698 flights
- Average delay9.4 min
- July 202643▲ 4.9%vs July 2025
- Cancelled1.0%
- Legs flown under this number36
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 | 5 | 53 | ▲ 960.0% |
| February | 12 | 47 | ▲ 291.7% |
| March | 29 | 24 | ▼ 17.2% |
| April | 22 | 36 | ▲ 63.6% |
| May | 25 | 40 | ▲ 60.0% |
| June | 33 | 41 | ▲ 24.2% |
| July | 41 | 43 | ▲ 4.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 40 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 167 | 284 | ▲ 70.1% |
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 | 75.0% | 92.5% | ▲ 23.3% |
| February | 91.7% | 68.1% | ▼ 25.7% |
| March | 79.3% | 77.3% | ▼ 2.6% |
| April | 68.2% | 91.7% | ▲ 34.5% |
| May | 88.0% | 92.3% | ▲ 4.9% |
| June | 72.7% | 58.5% | ▼ 19.5% |
| July | 63.4% | 81.0% | ▲ 27.7% |
| August | 93.3% | – | – |
| September | 100.0% | – | – |
| October | 50.0% | – | in progress |
| November | 86.2% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 76.9% | 80.2% | ▲ 4.3% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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% 691
- Cancelled 1.0% 7
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW MCI Chicago Midway International Airport – Kansas City International Airport | 650 | 6.4 min | 84.1% | 64 |
| BWI IND Baltimore/Washington International Thurgood Marshall Airport – Indianapolis International Airport | 828 | -2.0 min | 100.0% | 58 |
| STL LIT St. Louis Lambert International Airport – Bill & Hillary Clinton National Airport/Adams Field | 477 | 18.9 min | 65.4% | 52 |
| SNA LAS John Wayne Orange County International Airport – Harry Reid International Airport | 365 | 9.5 min | 82.0% | 50 |
| LGB LAS Long Beach International Airport – Harry Reid International Airport | 372 | -0.9 min | 95.9% | 50 |
| DEN LAX Denver International Airport – Los Angeles International Airport | 1,385 | 5.8 min | 91.1% | 46 |
| CMH RSW John Glenn Columbus International Airport – Southwest Florida International Airport | 1,501 | 19.4 min | 78.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 92.3% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 5 | 4 | 75.0% | 1 |
| February 2025 | 12 | 12 | 91.7% | 0 |
| March 2025 | 29 | 29 | 79.3% | 0 |
| April 2025 | 22 | 22 | 68.2% | 0 |
| May 2025 | 25 | 25 | 88.0% | 0 |
| June 2025 | 33 | 33 | 72.7% | 0 |
| July 2025 | 41 | 41 | 63.4% | 0 |
| August 2025 | 31 | 30 | 93.3% | 1 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 40 | 40 | 50.0% | 0 |
| November 2025 | 30 | 29 | 86.2% | 1 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 53 | 53 | 92.5% | 0 |
| February 2026 | 47 | 47 | 68.1% | 0 |
| March 2026 | 24 | 22 | 77.3% | 2 |
| April 2026 | 36 | 36 | 91.7% | 0 |
| May 2026 | 40 | 39 | 92.3% | 1 |
| June 2026 | 41 | 41 | 58.5% | 0 |
| July 2026 | 43 | 42 | 81.0% | 1 |