WN1320
WN1320 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Chicago to Denver. Of 668 departures recorded from October 2024 to July 2026, 75.7% left on time, according to the US BTS.
- On-time departures75.7%of 668 flights
- Average delay12.6 min
- July 202611▼ 59.3%vs July 2025
- Cancelled1.4%
- Legs flown under this number27
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 | 40 | 54 | ▲ 35.0% |
| February | 33 | 40 | ▲ 21.2% |
| March | 35 | 32 | ▼ 8.6% |
| April | 34 | 30 | ▼ 11.8% |
| May | 33 | 31 | ▼ 6.1% |
| June | 27 | 15 | ▼ 44.4% |
| July | 27 | 11 | ▼ 59.3% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 17 | – | in progress |
| November | 39 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 229 | 213 | ▼ 7.0% |
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% | 86.3% | ▲ 15.0% |
| February | 69.7% | 74.4% | ▲ 6.7% |
| March | 62.9% | 63.3% | ▲ 0.7% |
| April | 87.9% | 86.7% | ▼ 1.4% |
| May | 84.9% | 93.3% | ▲ 10.0% |
| June | 59.3% | 66.7% | ▲ 12.5% |
| July | 55.6% | 45.5% | ▼ 18.2% |
| August | 86.2% | – | – |
| September | 93.3% | – | – |
| October | 70.6% | – | in progress |
| November | 76.9% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 70.7% | 73.7% | ▲ 4.2% |
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 | 3 | – |
| February | 0 | 1 | – |
| March | 0 | 2 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 7 | ▲ 600.0% |
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 98.7% 659
- Cancelled 1.3% 9
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW DEN Chicago Midway International Airport – Denver International Airport | 1,438 | 9.7 min | 73.6% | 107 |
| SAN BWI San Diego International Airport – Baltimore/Washington International Thurgood Marshall Airport | 3,686 | 5.3 min | 87.7% | 58 |
| DCA MKE Ronald Reagan Washington National Airport – General Mitchell International Airport | 1,019 | 7.0 min | 82.1% | 58 |
| OAK PDX Oakland San Francisco Bay Airport – Portland International Airport | 876 | 3.8 min | 89.5% | 57 |
| LAS IND Harry Reid International Airport – Indianapolis International Airport | 2,553 | 5.6 min | 89.5% | 57 |
| MCO ORD Orlando International Airport – Chicago O'Hare International Airport | 1,620 | 35.2 min | 57.7% | 52 |
| ABQ BNA Albuquerque International Sunport – Nashville International Airport | 1,803 | 18.3 min | 73.9% | 46 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 28 | 27 | 96.3% | 1 |
| December 2024 | 30 | 30 | 63.3% | 0 |
| January 2025 | 40 | 40 | 75.0% | 0 |
| February 2025 | 33 | 33 | 69.7% | 0 |
| March 2025 | 35 | 35 | 62.9% | 0 |
| April 2025 | 34 | 33 | 87.9% | 1 |
| May 2025 | 33 | 33 | 84.9% | 0 |
| June 2025 | 27 | 27 | 59.3% | 0 |
| July 2025 | 27 | 27 | 55.6% | 0 |
| August 2025 | 29 | 29 | 86.2% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 17 | 17 | 70.6% | 0 |
| November 2025 | 39 | 39 | 76.9% | 0 |
| December 2025 | 33 | 33 | 63.6% | 0 |
| January 2026 | 54 | 51 | 86.3% | 3 |
| February 2026 | 40 | 39 | 74.4% | 1 |
| March 2026 | 32 | 30 | 63.3% | 2 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 30 | 93.3% | 1 |
| June 2026 | 15 | 15 | 66.7% | 0 |
| July 2026 | 11 | 11 | 45.5% | 0 |