WN3906
WN3906 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Portland to Oakland. Of 478 departures recorded from October 2024 to July 2026, 84.3% left on time, according to the US BTS.
- On-time departures84.3%of 478 flights
- Average delay8.4 min
- July 202630▲ 200.0%vs July 2025
- Cancelled1.5%
- Legs flown under this number22
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 | 2 | 5 | ▲ 150.0% |
| February | 8 | 10 | ▲ 25.0% |
| March | 21 | 28 | ▲ 33.3% |
| April | 56 | 12 | ▼ 78.6% |
| May | 68 | 9 | ▼ 86.8% |
| June | 15 | 27 | ▲ 80.0% |
| July | 10 | 30 | ▲ 200.0% |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 180 | 121 | ▼ 32.8% |
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 | 50.0% | 100.0% | ▲ 100.0% |
| February | 85.7% | 70.0% | ▼ 18.3% |
| March | 85.7% | 92.9% | ▲ 8.3% |
| April | 85.2% | 75.0% | ▼ 12.0% |
| May | 67.7% | 88.9% | ▲ 31.4% |
| June | 73.3% | 96.2% | ▲ 31.1% |
| July | 20.0% | 96.7% | ▲ 383.3% |
| August | 92.6% | – | – |
| September | 86.7% | – | – |
| October | 100.0% | – | in progress |
| November | 92.6% | – | – |
| December | 83.9% | – | – |
| Year-to-date average (Jan–Jul) | 66.8% | 88.5% | ▲ 32.5% |
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 | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 2 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 98.5% 471
- Cancelled 1.5% 7
Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX OAK Portland International Airport – Oakland San Francisco Bay Airport | 876 | 4.3 min | 90.2% | 64 |
| PHX OGG Phoenix Sky Harbor International Airport – Kahului International Airport | 4,573 | 3.4 min | 89.7% | 58 |
| SAN DAL San Diego International Airport – Dallas Love Field | 1,899 | 0.5 min | 96.4% | 57 |
| TUS LAX Tucson International Airport – Los Angeles International Airport | 725 | 13.8 min | 75.5% | 50 |
| MCO LAS Orlando International Airport – Harry Reid International Airport | 3,276 | 6.3 min | 97.0% | 33 |
| HOU TUS William P. Hobby Airport – Tucson International Airport | 1,518 | 9.0 min | 81.3% | 32 |
| MDW STL Chicago Midway International Airport – St. Louis Lambert International Airport | 404 | -2.8 min | 100.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 100.0% | 0 |
| November 2024 | 8 | 8 | 75.0% | 0 |
| December 2024 | 14 | 14 | 92.9% | 0 |
| January 2025 | 2 | 2 | 50.0% | 0 |
| February 2025 | 8 | 7 | 85.7% | 1 |
| March 2025 | 21 | 21 | 85.7% | 0 |
| April 2025 | 56 | 54 | 85.2% | 2 |
| May 2025 | 68 | 68 | 67.7% | 0 |
| June 2025 | 15 | 15 | 73.3% | 0 |
| July 2025 | 10 | 10 | 20.0% | 0 |
| August 2025 | 27 | 27 | 92.6% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 30 | 30 | 100.0% | 0 |
| November 2025 | 30 | 27 | 92.6% | 3 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 5 | 5 | 100.0% | 0 |
| February 2026 | 10 | 10 | 70.0% | 0 |
| March 2026 | 28 | 28 | 92.9% | 0 |
| April 2026 | 12 | 12 | 75.0% | 0 |
| May 2026 | 9 | 9 | 88.9% | 0 |
| June 2026 | 27 | 26 | 96.2% | 1 |
| July 2026 | 30 | 30 | 96.7% | 0 |