WN3125
WN3125 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Phoenix to Seattle. Of 628 departures recorded from October 2024 to July 2026, 70.5% left on time, according to the US BTS.
- On-time departures70.5%of 628 flights
- Average delay13.7 min
- July 202634▼ 20.9%vs July 2025
- Cancelled0.2%
- Legs flown under this number26
according to the US BTS · Oct 13, 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 | 30 | 31 | ▲ 3.3% |
| February | 28 | 24 | ▼ 14.3% |
| March | 31 | 7 | ▼ 77.4% |
| April | 33 | 4 | ▼ 87.9% |
| May | 35 | 4 | ▼ 88.6% |
| June | 42 | 31 | ▼ 26.2% |
| July | 43 | 34 | ▼ 20.9% |
| August | 42 | – | – |
| September | 39 | – | – |
| October | 31 | – | in progress |
| November | 39 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 242 | 135 | ▼ 44.2% |
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 | 73.3% | 74.2% | ▲ 1.2% |
| February | 64.3% | 83.3% | ▲ 29.6% |
| March | 100.0% | 71.4% | ▼ 28.6% |
| April | 84.9% | 50.0% | ▼ 41.1% |
| May | 82.9% | 25.0% | ▼ 69.8% |
| June | 42.9% | 46.7% | ▲ 8.9% |
| July | 37.2% | 41.2% | ▲ 10.7% |
| August | 88.1% | – | – |
| September | 100.0% | – | – |
| October | 96.8% | – | in progress |
| November | 66.7% | – | – |
| December | 69.7% | – | – |
| Year-to-date average (Jan–Jul) | 69.3% | 56.0% | ▼ 19.3% |
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 | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.8% 627
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| PHX SEA Phoenix Sky Harbor International Airport – Seattle–Tacoma International Airport | 1,782 | 17.1 min | 61.7% | 116 |
| ORD LAS Chicago O'Hare International Airport – Harry Reid International Airport | 2,432 | -1.2 min | 100.0% | 51 |
| HOU SAT William P. Hobby Airport – San Antonio International Airport | 309 | 12.8 min | 72.3% | 47 |
| DEN SLC Denver International Airport – Salt Lake City International Airport | 628 | 31.8 min | 46.7% | 45 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 3.6 min | 90.5% | 42 |
| OKC PHX OKC Will Rogers World Airport – Phoenix Sky Harbor International Airport | 1,338 | 27.5 min | 43.9% | 41 |
| BOI SJC Boise Air Terminal/Gowen Field – Mineta San Jose International Airport | 841 | 4.9 min | 82.9% | 41 |
| HNL LIH Daniel K. Inouye International Airport – Lihue Airport | 163 | 0.0 min | 97.0% | 33 |
| IND LAS Indianapolis International Airport – Harry Reid International Airport | 2,553 | 1.2 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 100.0% | 0 |
| November 2024 | 25 | 25 | 72.0% | 0 |
| December 2024 | 26 | 26 | 46.2% | 0 |
| January 2025 | 30 | 30 | 73.3% | 0 |
| February 2025 | 28 | 28 | 64.3% | 0 |
| March 2025 | 31 | 31 | 100.0% | 0 |
| April 2025 | 33 | 33 | 84.9% | 0 |
| May 2025 | 35 | 35 | 82.9% | 0 |
| June 2025 | 42 | 42 | 42.9% | 0 |
| July 2025 | 43 | 43 | 37.2% | 0 |
| August 2025 | 42 | 42 | 88.1% | 0 |
| September 2025 | 39 | 39 | 100.0% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 39 | 39 | 66.7% | 0 |
| December 2025 | 33 | 33 | 69.7% | 0 |
| January 2026 | 31 | 31 | 74.2% | 0 |
| February 2026 | 24 | 24 | 83.3% | 0 |
| March 2026 | 7 | 7 | 71.4% | 0 |
| April 2026 | 4 | 4 | 50.0% | 0 |
| May 2026 | 4 | 4 | 25.0% | 0 |
| June 2026 | 31 | 30 | 46.7% | 1 |
| July 2026 | 34 | 34 | 41.2% | 0 |