WN1123
WN1123 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Denver to Atlanta. Of 619 departures recorded from October 2024 to July 2026, 72.3% left on time, according to the US BTS.
- On-time departures72.3%of 619 flights
- Average delay14.7 min
- July 202633▲ 43.5%vs July 2025
- Cancelled1.6%
- Legs flown under this number30
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 | 32 | 29 | ▼ 9.4% |
| February | 28 | 28 | 0.0% |
| March | 27 | 43 | ▲ 59.3% |
| April | 20 | 25 | ▲ 25.0% |
| May | 17 | 23 | ▲ 35.3% |
| June | 21 | 32 | ▲ 52.4% |
| July | 23 | 33 | ▲ 43.5% |
| August | 28 | – | – |
| September | 30 | – | – |
| October | 44 | – | in progress |
| November | 19 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 168 | 213 | ▲ 26.8% |
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 | 73.3% | 72.4% | ▼ 1.3% |
| February | 64.3% | 85.7% | ▲ 33.3% |
| March | 88.5% | 73.8% | ▼ 16.6% |
| April | 85.0% | 56.0% | ▼ 34.1% |
| May | 64.7% | 69.6% | ▲ 7.5% |
| June | 71.4% | 53.1% | ▼ 25.6% |
| July | 65.2% | 56.7% | ▼ 13.1% |
| August | 78.6% | – | – |
| September | 83.3% | – | – |
| October | 77.3% | – | in progress |
| November | 52.9% | – | – |
| December | 20.0% | – | – |
| Year-to-date average (Jan–Jul) | 73.2% | 66.8% | ▼ 8.8% |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 4 | ▲ 33.3% |
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 98.4% 609
- Cancelled 1.6% 10
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN ATL Denver International Airport – Hartsfield Jackson Atlanta International Airport | 1,927 | 12.5 min | 68.9% | 105 |
| RDU DEN Raleigh-Durham International Airport – Denver International Airport | 2,307 | 7.9 min | 82.5% | 57 |
| MDW RDU Chicago Midway International Airport – Raleigh-Durham International Airport | 1,016 | 26.6 min | 65.1% | 43 |
| BWI TPA Baltimore/Washington International Thurgood Marshall Airport – Tampa International Airport | 1,358 | 35.2 min | 51.3% | 42 |
| SJU MCO Luis Munoz Marin International Airport – Orlando International Airport | 1,913 | 17.1 min | 65.0% | 40 |
| MSY MCI Louis Armstrong New Orleans International Airport – Kansas City International Airport | 1,112 | 2.4 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 37 | 37 | 91.9% | 0 |
| November 2024 | 33 | 32 | 75.0% | 1 |
| December 2024 | 32 | 32 | 87.5% | 0 |
| January 2025 | 32 | 30 | 73.3% | 2 |
| February 2025 | 28 | 28 | 64.3% | 0 |
| March 2025 | 27 | 26 | 88.5% | 1 |
| April 2025 | 20 | 20 | 85.0% | 0 |
| May 2025 | 17 | 17 | 64.7% | 0 |
| June 2025 | 21 | 21 | 71.4% | 0 |
| July 2025 | 23 | 23 | 65.2% | 0 |
| August 2025 | 28 | 28 | 78.6% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 44 | 44 | 77.3% | 0 |
| November 2025 | 19 | 17 | 52.9% | 2 |
| December 2025 | 15 | 15 | 20.0% | 0 |
| January 2026 | 29 | 29 | 72.4% | 0 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 43 | 42 | 73.8% | 1 |
| April 2026 | 25 | 25 | 56.0% | 0 |
| May 2026 | 23 | 23 | 69.6% | 0 |
| June 2026 | 32 | 32 | 53.1% | 0 |
| July 2026 | 33 | 30 | 56.7% | 3 |