WN3786
WN3786 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Seattle to Oakland. Of 556 departures recorded from October 2024 to July 2026, 70.8% left on time, according to the US BTS.
- On-time departures70.8%of 556 flights
- Average delay15.5 min
- July 202627▼ 40.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number25
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 | 27 | 8 | ▼ 70.4% |
| February | 20 | 18 | ▼ 10.0% |
| March | 36 | 39 | ▲ 8.3% |
| April | 29 | 32 | ▲ 10.3% |
| May | 26 | 31 | ▲ 19.2% |
| June | 40 | 26 | ▼ 35.0% |
| July | 45 | 27 | ▼ 40.0% |
| August | 9 | – | – |
| September | 4 | – | – |
| October | 22 | – | in progress |
| November | 9 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 223 | 181 | ▼ 18.8% |
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 | 92.3% | 75.0% | ▼ 18.8% |
| February | 73.7% | 77.8% | ▲ 5.6% |
| March | 72.2% | 84.6% | ▲ 17.2% |
| April | 69.0% | 62.5% | ▼ 9.4% |
| May | 73.1% | 35.5% | ▼ 51.5% |
| June | 70.0% | 62.5% | ▼ 10.7% |
| July | 61.4% | 74.1% | ▲ 20.7% |
| August | 77.8% | – | – |
| September | 0.0% | – | – |
| October | 77.3% | – | in progress |
| November | 66.7% | – | – |
| December | 92.3% | – | – |
| Year-to-date average (Jan–Jul) | 73.1% | 67.4% | ▼ 7.8% |
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 | 1 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
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 99.1% 551
- Cancelled 0.9% 5
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA OAK Seattle–Tacoma International Airport – Oakland San Francisco Bay Airport | 1,082 | 9.1 min | 75.3% | 81 |
| MDW BOS Chicago Midway International Airport – Boston Logan International Airport | 1,381 | 18.5 min | 66.7% | 61 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 27.8 min | 46.6% | 58 |
| SMF LAS Sacramento International Airport – Harry Reid International Airport | 639 | 19.1 min | 70.8% | 50 |
| ONT SMF Ontario International Airport – Sacramento International Airport | 627 | 16.4 min | 68.0% | 50 |
| MSY DAL Louis Armstrong New Orleans International Airport – Dallas Love Field | 700 | 13.2 min | 72.7% | 33 |
| ORD LAS Chicago O'Hare International Airport – Harry Reid International Airport | 2,432 | 7.4 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 71.4% | 0 |
| November 2024 | 45 | 45 | 75.6% | 0 |
| December 2024 | 36 | 36 | 75.0% | 0 |
| January 2025 | 27 | 26 | 92.3% | 1 |
| February 2025 | 20 | 19 | 73.7% | 1 |
| March 2025 | 36 | 36 | 72.2% | 0 |
| April 2025 | 29 | 29 | 69.0% | 0 |
| May 2025 | 26 | 26 | 73.1% | 0 |
| June 2025 | 40 | 40 | 70.0% | 0 |
| July 2025 | 45 | 44 | 61.4% | 1 |
| August 2025 | 9 | 9 | 77.8% | 0 |
| September 2025 | 4 | 4 | 0.0% | 0 |
| October 2025 | 22 | 22 | 77.3% | 0 |
| November 2025 | 9 | 9 | 66.7% | 0 |
| December 2025 | 13 | 13 | 92.3% | 0 |
| January 2026 | 8 | 8 | 75.0% | 0 |
| February 2026 | 18 | 18 | 77.8% | 0 |
| March 2026 | 39 | 39 | 84.6% | 0 |
| April 2026 | 32 | 32 | 62.5% | 0 |
| May 2026 | 31 | 31 | 35.5% | 0 |
| June 2026 | 26 | 24 | 62.5% | 2 |
| July 2026 | 27 | 27 | 74.1% | 0 |