WN3717
WN3717 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Phoenix to San Jose. Of 376 departures recorded from October 2024 to July 2026, 80.8% left on time, according to the US BTS.
- On-time departures80.8%of 376 flights
- Average delay11.9 min
- July 202630▲ 2,900.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number18
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 | 1 | 3 | ▲ 200.0% |
| February | 10 | 10 | 0.0% |
| March | 12 | 5 | ▼ 58.3% |
| April | 21 | 25 | ▲ 19.0% |
| May | 26 | 32 | ▲ 23.1% |
| June | 3 | 30 | ▲ 900.0% |
| July | 1 | 30 | ▲ 2,900.0% |
| August | 38 | – | – |
| September | 43 | – | – |
| October | 31 | – | in progress |
| November | 5 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 74 | 135 | ▲ 82.4% |
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 | 0.0% | 100.0% | – |
| February | 50.0% | 90.0% | ▲ 80.0% |
| March | 58.3% | 40.0% | ▼ 31.4% |
| April | 90.5% | 83.3% | ▼ 7.9% |
| May | 73.1% | 74.2% | ▲ 1.5% |
| June | 66.7% | 93.3% | ▲ 40.0% |
| July | 100.0% | 93.3% | ▼ 6.7% |
| August | 81.6% | – | – |
| September | 88.4% | – | – |
| October | 96.8% | – | in progress |
| November | 80.0% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 62.7% | 82.0% | ▲ 30.9% |
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 | 1 | – |
| 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) | 0 | 2 |
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 99.5% 374
- Cancelled 0.5% 2
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX SJC Phoenix Sky Harbor International Airport – Mineta San Jose International Airport | 999 | 15.2 min | 79.3% | 58 |
| ELP LAS El Paso International Airport – Harry Reid International Airport | 938 | 10.6 min | 80.4% | 58 |
| SJU BWI Luis Munoz Marin International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,525 | 7.7 min | 93.0% | 57 |
| LGB PHX Long Beach International Airport – Phoenix Sky Harbor International Airport | 570 | 7.4 min | 87.2% | 39 |
| ORD DEN Chicago O'Hare International Airport – Denver International Airport | 1,426 | -3.7 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 15 | 15 | 73.3% | 0 |
| December 2024 | 4 | 4 | 50.0% | 0 |
| January 2025 | 1 | 1 | 0.0% | 0 |
| February 2025 | 10 | 10 | 50.0% | 0 |
| March 2025 | 12 | 12 | 58.3% | 0 |
| April 2025 | 21 | 21 | 90.5% | 0 |
| May 2025 | 26 | 26 | 73.1% | 0 |
| June 2025 | 3 | 3 | 66.7% | 0 |
| July 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 38 | 38 | 81.6% | 0 |
| September 2025 | 43 | 43 | 88.4% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 5 | 5 | 80.0% | 0 |
| December 2025 | 11 | 11 | 63.6% | 0 |
| January 2026 | 3 | 3 | 100.0% | 0 |
| February 2026 | 10 | 10 | 90.0% | 0 |
| March 2026 | 5 | 5 | 40.0% | 0 |
| April 2026 | 25 | 24 | 83.3% | 1 |
| May 2026 | 32 | 31 | 74.2% | 1 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 30 | 30 | 93.3% | 0 |