WN1421
WN1421 (Southwest Airlines) is a multi-stop service on 38 routes, busiest Dallas to Denver. Of 672 departures recorded from October 2024 to July 2026, 78.4% left on time, according to the US BTS.
- On-time departures78.4%of 672 flights
- Average delay10.4 min
- July 202627▼ 15.6%vs July 2025
- Cancelled0.6%
- Legs flown under this number38
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 | 28 | 31 | ▲ 10.7% |
| February | 20 | 31 | ▲ 55.0% |
| March | 30 | 26 | ▼ 13.3% |
| April | 36 | 46 | ▲ 27.8% |
| May | 42 | 51 | ▲ 21.4% |
| June | 30 | 30 | 0.0% |
| July | 32 | 27 | ▼ 15.6% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 32 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 218 | 242 | ▲ 11.0% |
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 | 100.0% | 96.8% | ▼ 3.2% |
| February | 100.0% | 93.6% | ▼ 6.5% |
| March | 72.4% | 42.3% | ▼ 41.6% |
| April | 75.0% | 82.6% | ▲ 10.1% |
| May | 80.5% | 82.4% | ▲ 2.3% |
| June | 50.0% | 43.3% | ▼ 13.3% |
| July | 61.3% | 70.4% | ▲ 14.8% |
| August | 90.3% | – | – |
| September | 100.0% | – | – |
| October | 93.3% | – | in progress |
| November | 59.4% | – | – |
| December | 75.9% | – | – |
| Year-to-date average (Jan–Jul) | 77.0% | 73.0% | ▼ 5.2% |
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 | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| 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) | 4 | 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 99.4% 668
- Cancelled 0.6% 4
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL DEN Dallas Love Field – Denver International Airport | 1,048 | -2.2 min | 96.8% | 65 |
| DAL ECP Dallas Love Field – Northwest Florida Beaches International Airport | 1,082 | 35.4 min | 53.3% | 61 |
| STL MCO St. Louis Lambert International Airport – Orlando International Airport | 1,420 | -1.1 min | 98.3% | 58 |
| SJC LAS Mineta San Jose International Airport – Harry Reid International Airport | 620 | -1.0 min | 94.8% | 58 |
| SMF LAX Sacramento International Airport – Los Angeles International Airport | 600 | 20.6 min | 59.1% | 44 |
| PHX RNO Phoenix Sky Harbor International Airport – Reno Tahoe International Airport | 967 | 10.3 min | 78.6% | 42 |
| MDW TUS Chicago Midway International Airport – Tucson International Airport | 2,314 | 7.5 min | 85.7% | 42 |
| DAL VPS Dallas Love Field – Destin-Fort Walton Beach Airport | 1,012 | 30.4 min | 46.3% | 41 |
| RNO OAK Reno Tahoe International Airport – Oakland San Francisco Bay Airport | 291 | 0.9 min | 87.1% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 80.0% | 0 |
| November 2024 | 17 | 17 | 94.1% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 28 | 28 | 100.0% | 0 |
| February 2025 | 20 | 19 | 100.0% | 1 |
| March 2025 | 30 | 29 | 72.4% | 1 |
| April 2025 | 36 | 36 | 75.0% | 0 |
| May 2025 | 42 | 41 | 80.5% | 1 |
| June 2025 | 30 | 30 | 50.0% | 0 |
| July 2025 | 32 | 31 | 61.3% | 1 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 30 | 30 | 93.3% | 0 |
| November 2025 | 32 | 32 | 59.4% | 0 |
| December 2025 | 29 | 29 | 75.9% | 0 |
| January 2026 | 31 | 31 | 96.8% | 0 |
| February 2026 | 31 | 31 | 93.6% | 0 |
| March 2026 | 26 | 26 | 42.3% | 0 |
| April 2026 | 46 | 46 | 82.6% | 0 |
| May 2026 | 51 | 51 | 82.4% | 0 |
| June 2026 | 30 | 30 | 43.3% | 0 |
| July 2026 | 27 | 27 | 70.4% | 0 |