AS678
AS678 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Seattle to Las Vegas. Of 381 departures recorded from October 2024 to July 2026, 79.2% left on time, according to the US BTS.
- On-time departures79.2%of 381 flights
- Average delay7.7 min
- July 202631
- Cancelled1.6%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 24 | ▼ 20.0% |
| February | 28 | 20 | ▼ 28.6% |
| March | 31 | 13 | ▼ 58.1% |
| April | 21 | – | – |
| May | 17 | 1 | ▼ 94.1% |
| June | 11 | 21 | ▲ 90.9% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | 7 | – | in progress |
| November | 20 | – | – |
| December | 28 | – | – |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 86.7% | 78.3% | ▼ 9.7% |
| February | 85.7% | 90.0% | ▲ 5.0% |
| March | 80.7% | 66.7% | ▼ 17.3% |
| April | 70.0% | – | – |
| May | 94.1% | 100.0% | ▲ 6.2% |
| June | 63.6% | 81.0% | ▲ 27.2% |
| July | – | 74.2% | – |
| August | – | – | – |
| September | – | – | – |
| October | 83.3% | – | in progress |
| November | 77.8% | – | – |
| December | 57.1% | – | – |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | – | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 1 | – | in progress |
| November | 2 | – | – |
| December | 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 98.4% 375
- Cancelled 1.6% 6
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA LAS Seattle–Tacoma International Airport – Harry Reid International Airport | 1,395 | 8.2 min | 78.3% | 276 |
| PDX SJC Portland International Airport – Mineta San Jose International Airport | 916 | 8.6 min | 76.9% | 52 |
| SLC SEA Salt Lake City International Airport – Seattle–Tacoma International Airport | 1,107 | 4.2 min | 85.7% | 51 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 28 | 28 | 82.1% | 0 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 30 | 30 | 86.7% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 21 | 20 | 70.0% | 1 |
| May 2025 | 17 | 17 | 94.1% | 0 |
| June 2025 | 11 | 11 | 63.6% | 0 |
| October 2025 | 7 | 6 | 83.3% | 1 |
| November 2025 | 20 | 18 | 77.8% | 2 |
| December 2025 | 28 | 28 | 57.1% | 0 |
| January 2026 | 24 | 23 | 78.3% | 1 |
| February 2026 | 20 | 20 | 90.0% | 0 |
| March 2026 | 13 | 12 | 66.7% | 1 |
| May 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 21 | 21 | 81.0% | 0 |
| July 2026 | 31 | 31 | 74.2% | 0 |