WN4353
WN4353 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Portland to Phoenix. Of 437 departures recorded from October 2024 to July 2026, 70.3% left on time, according to the US BTS.
- On-time departures70.3%of 437 flights
- Average delay17.2 min
- July 202650▲ 1,150.0%vs July 2025
- Cancelled0.0%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 5 | ▼ 78.3% |
| February | 17 | 1 | ▼ 94.1% |
| March | 35 | 23 | ▼ 34.3% |
| April | 32 | 16 | ▼ 50.0% |
| May | 31 | 13 | ▼ 58.1% |
| June | 8 | 44 | ▲ 450.0% |
| July | 4 | 50 | ▲ 1,150.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 27 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 150 | 152 | ▲ 1.3% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 73.9% | 40.0% | ▼ 45.9% |
| February | 47.1% | 100.0% | ▲ 112.5% |
| March | 68.6% | 65.2% | ▼ 4.9% |
| April | 71.9% | 81.3% | ▲ 13.0% |
| May | 48.4% | 92.3% | ▲ 90.8% |
| June | 62.5% | 75.0% | ▲ 20.0% |
| July | 50.0% | 88.0% | ▲ 76.0% |
| August | 0.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 59.3% | – | – |
| December | 74.2% | – | – |
| Year-to-date average (Jan–Jul) | 60.3% | 77.4% | ▲ 28.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 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 | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 100.0% 437
- Cancelled 0.0% 0
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 |
|---|---|---|---|---|
| PDX PHX Portland International Airport – Phoenix Sky Harbor International Airport | 1,625 | 22.9 min | 64.6% | 96 |
| SMF BOI Sacramento International Airport – Boise Air Terminal/Gowen Field | 703 | 15.6 min | 69.0% | 58 |
| MCO STL Orlando International Airport – St. Louis Lambert International Airport | 1,420 | 36.3 min | 56.9% | 58 |
| BNA VPS Nashville International Airport – Destin-Fort Walton Beach Airport | 628 | 3.3 min | 86.0% | 50 |
| VPS DAL Destin-Fort Walton Beach Airport – Dallas Love Field | 1,012 | 9.6 min | 78.6% | 42 |
| OAK PSP Oakland San Francisco Bay Airport – Palm Springs International Airport | 673 | 14.5 min | 75.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 27 | 27 | 70.4% | 0 |
| December 2024 | 28 | 28 | 60.7% | 0 |
| January 2025 | 23 | 23 | 73.9% | 0 |
| February 2025 | 17 | 17 | 47.1% | 0 |
| March 2025 | 35 | 35 | 68.6% | 0 |
| April 2025 | 32 | 32 | 71.9% | 0 |
| May 2025 | 31 | 31 | 48.4% | 0 |
| June 2025 | 8 | 8 | 62.5% | 0 |
| July 2025 | 4 | 4 | 50.0% | 0 |
| August 2025 | 1 | 1 | 0.0% | 0 |
| October 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 27 | 27 | 59.3% | 0 |
| December 2025 | 31 | 31 | 74.2% | 0 |
| January 2026 | 5 | 5 | 40.0% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 23 | 23 | 65.2% | 0 |
| April 2026 | 16 | 16 | 81.3% | 0 |
| May 2026 | 13 | 13 | 92.3% | 0 |
| June 2026 | 44 | 44 | 75.0% | 0 |
| July 2026 | 50 | 50 | 88.0% | 0 |