WN3343
WN3343 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Denver to Chicago. Of 449 departures recorded from October 2024 to July 2026, 80.3% left on time, according to the US BTS.
- On-time departures80.3%of 449 flights
- Average delay11.4 min
- July 202615▼ 51.6%vs July 2025
- Cancelled0.7%
- Legs flown under this number21
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 | 3 | 7 | ▲ 133.3% |
| February | 16 | 7 | ▼ 56.3% |
| March | 24 | 27 | ▲ 12.5% |
| April | 9 | 30 | ▲ 233.3% |
| May | 3 | 31 | ▲ 933.3% |
| June | 27 | 22 | ▼ 18.5% |
| July | 31 | 15 | ▼ 51.6% |
| August | 18 | – | – |
| September | 17 | – | – |
| October | 42 | – | in progress |
| November | 33 | – | – |
| December | 34 | – | – |
| Year to date (Jan–Jul) | 113 | 139 | ▲ 23.0% |
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 | 66.7% | 100.0% | ▲ 50.0% |
| February | 56.3% | 85.7% | ▲ 52.4% |
| March | 75.0% | 96.3% | ▲ 28.4% |
| April | 88.9% | 86.7% | ▼ 2.5% |
| May | 100.0% | 90.3% | ▼ 9.7% |
| June | 70.4% | 100.0% | ▲ 42.1% |
| July | 64.5% | 100.0% | ▲ 55.0% |
| August | 88.9% | – | – |
| September | 94.1% | – | – |
| October | 70.7% | – | in progress |
| November | 74.2% | – | – |
| December | 58.8% | – | – |
| Year-to-date average (Jan–Jul) | 74.5% | 94.1% | ▲ 26.3% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 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 99.3% 446
- Cancelled 0.7% 3
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 ORD Denver International Airport – Chicago O'Hare International Airport | 1,426 | 16.9 min | 67.2% | 61 |
| STL RDU St. Louis Lambert International Airport – Raleigh-Durham International Airport | 1,072 | 10.6 min | 87.9% | 58 |
| BNA DAL Nashville International Airport – Dallas Love Field | 1,000 | 27.4 min | 65.9% | 45 |
| PHX SMF Phoenix Sky Harbor International Airport – Sacramento International Airport | 1,040 | -4.1 min | 100.0% | 34 |
| ABQ HOU Albuquerque International Sunport – William P. Hobby Airport | 1,221 | -0.6 min | 97.0% | 33 |
| LGB ELP Long Beach International Airport – El Paso International Airport | 1,122 | -1.9 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 19 | 19 | 73.7% | 0 |
| December 2024 | 14 | 14 | 100.0% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| February 2025 | 16 | 16 | 56.3% | 0 |
| March 2025 | 24 | 24 | 75.0% | 0 |
| April 2025 | 9 | 9 | 88.9% | 0 |
| May 2025 | 3 | 3 | 100.0% | 0 |
| June 2025 | 27 | 27 | 70.4% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 18 | 18 | 88.9% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 42 | 41 | 70.7% | 1 |
| November 2025 | 33 | 31 | 74.2% | 2 |
| December 2025 | 34 | 34 | 58.8% | 0 |
| January 2026 | 7 | 7 | 100.0% | 0 |
| February 2026 | 7 | 7 | 85.7% | 0 |
| March 2026 | 27 | 27 | 96.3% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 22 | 22 | 100.0% | 0 |
| July 2026 | 15 | 15 | 100.0% | 0 |