Likely delayed: there are delays at AS 1340's airports as of 6:46 PM ET. It arrived on time 55.1% of the time in June-August 2026. When it was late, the average delay was 55 minutes. 2.2% of flights were cancelled. SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed.
Likely delayed
Likely delayed: SFO has major delays (wind, max 5 hours and 41 minutes). Scheduled to leave at 3:50 PM local time.
Cancellation risk: Medium 2.2% of its flights were cancelled in June-August 2026; SFO has major delays.
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 |
|---|---|---|
| SFO → SEA San Francisco, CA to Seattle, WA | 3:50 PM → 6:00 PM | 55% |
Local times. Schedules change; check your booking.
How reliable is AS 1340?
| Arrived on time (within 15 min) | 55.1% |
| Average delay when late | 55 min |
| Cancelled | 2.2% |
| Diverted | 0% |
| Flights tracked | 91 |
Best and worst days to fly AS 1340
AS 1340 was most reliable on Saturdays (82% on time) and least reliable on Thursdays (31%).
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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 SFO → 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 1340 delayed today?
SFO has major delays (wind, max 5 hours and 41 minutes), so this flight is likely to be delayed. Checked 6:46 PM ET. For this flight's gate and exact status, check the Alaska Airlines app.
Is AS 1340 usually on time?
AS 1340 arrived within 15 minutes of schedule 55.1% of the time in June-August 2026, with an average delay of 55 minutes when late.
How often is AS 1340 cancelled?
2.2% of AS 1340 flights were cancelled in June-August 2026.