WN452
WN452 (Southwest Airlines) is a multi-stop service on 40 routes, busiest Chicago to Atlanta. Of 771 departures recorded from October 2024 to July 2026, 75.2% left on time, according to the US BTS.
- On-time departures75.2%of 771 flights
- Average delay13.2 min
- July 202644▼ 10.2%vs July 2025
- Cancelled0.7%
- Legs flown under this number40
according to the US BTS · Oct 12, 2024 → Jul 31, 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 | 32 | 28 | ▼ 12.5% |
| February | 20 | 24 | ▲ 20.0% |
| March | 30 | 31 | ▲ 3.3% |
| April | 49 | 30 | ▼ 38.8% |
| May | 50 | 31 | ▼ 38.0% |
| June | 49 | 42 | ▼ 14.3% |
| July | 49 | 44 | ▼ 10.2% |
| August | 18 | – | – |
| September | 13 | – | – |
| October | 31 | – | in progress |
| November | 44 | – | – |
| December | 35 | – | – |
| Year to date (Jan–Jul) | 279 | 230 | ▼ 17.6% |
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 | 93.6% | 81.5% | ▼ 12.9% |
| February | 100.0% | 87.5% | ▼ 12.5% |
| March | 73.3% | 53.3% | ▼ 27.3% |
| April | 85.4% | 53.3% | ▼ 37.6% |
| May | 88.0% | 45.2% | ▼ 48.7% |
| June | 79.6% | 71.4% | ▼ 10.3% |
| July | 72.9% | 72.7% | ▼ 0.3% |
| August | 72.2% | – | – |
| September | 38.5% | – | – |
| October | 83.9% | – | in progress |
| November | 47.7% | – | – |
| December | 54.3% | – | – |
| Year-to-date average (Jan–Jul) | 84.7% | 66.4% | ▼ 21.6% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
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 99.4% 766
- Cancelled 0.6% 5
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW ATL Chicago Midway International Airport – Hartsfield Jackson Atlanta International Airport | 952 | -1.1 min | 96.8% | 94 |
| BWI PIT Baltimore/Washington International Thurgood Marshall Airport – Pittsburgh International Airport | 338 | 26.1 min | 51.7% | 58 |
| BNA AUS Nashville International Airport – Austin Bergstrom International Airport | 1,215 | -1.5 min | 91.8% | 50 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 6.4 min | 87.8% | 49 |
| OAK PDX Oakland San Francisco Bay Airport – Portland International Airport | 876 | 17.7 min | 59.5% | 42 |
| CMH LAS John Glenn Columbus International Airport – Harry Reid International Airport | 2,843 | 1.9 min | 92.9% | 42 |
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | 28.4 min | 41.0% | 39 |
| RDU STL Raleigh-Durham International Airport – St. Louis Lambert International Airport | 1,072 | 23.6 min | 43.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 95.2% | 0 |
| November 2024 | 58 | 58 | 93.1% | 0 |
| December 2024 | 42 | 42 | 88.1% | 0 |
| January 2025 | 32 | 31 | 93.6% | 1 |
| February 2025 | 20 | 20 | 100.0% | 0 |
| March 2025 | 30 | 30 | 73.3% | 0 |
| April 2025 | 49 | 48 | 85.4% | 1 |
| May 2025 | 50 | 50 | 88.0% | 0 |
| June 2025 | 49 | 49 | 79.6% | 0 |
| July 2025 | 49 | 48 | 72.9% | 1 |
| August 2025 | 18 | 18 | 72.2% | 0 |
| September 2025 | 13 | 13 | 38.5% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 44 | 44 | 47.7% | 0 |
| December 2025 | 35 | 35 | 54.3% | 0 |
| January 2026 | 28 | 27 | 81.5% | 1 |
| February 2026 | 24 | 24 | 87.5% | 0 |
| March 2026 | 31 | 30 | 53.3% | 1 |
| April 2026 | 30 | 30 | 53.3% | 0 |
| May 2026 | 31 | 31 | 45.2% | 0 |
| June 2026 | 42 | 42 | 71.4% | 0 |
| July 2026 | 44 | 44 | 72.7% | 0 |