No delays reported for AS 664 (SLC→SEA, SEA→SAN) as of 6:51 PM ET. It arrived on time 83% of the time in June-August 2026. When it was late, the average delay was 1h 16m. None were cancelled. Right now there are no reported delays at SLC, SEA, SAN.
May not fly today
Leg 2 of 2 (SEA → SAN): Next leg SEA → SAN, scheduled 6:26 AM local time. No delays at SEA right now, and it usually runs on time. This flight number flew about 6 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Alaska Airlines for official times.
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SLC → SEA Salt Lake City, UT to Seattle, WA | 12:51 PM → 2:04 PM | 82% |
| SEA → SAN Seattle, WA to San Diego, CA | 6:26 AM → 9:15 AM | 100% |
Local times. Schedules change; check your booking.
How reliable is AS 664?
| Arrived on time (within 15 min) | 83% |
| Average delay when late | 76 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 88 |
Best and worst days to fly AS 664
AS 664 was most reliable on Tuesdays (100% on time) and least reliable on Mondays (64%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | |
| Sunday |
Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Alaska Airlines to the Department of Transportation.
Other flights SLC → SEA
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Alaska Airlines app.
Alaska Airlines delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is AS 664 delayed today?
Right now there are no reported delays at SLC, SEA, SAN. Checked 6:51 PM ET. For this flight's gate and exact status, check the Alaska Airlines app.
Is AS 664 usually on time?
AS 664 arrived within 15 minutes of schedule 83% of the time in June-August 2026, with an average delay of 76 minutes when late.
How often is AS 664 cancelled?
0% of AS 664 flights were cancelled in June-August 2026.