AS 9578 San Diego to Seattle Flight Status

Alaska Airlines Flight AS9578 from San Diego International Airport SAN to Seattle Tacoma International Airport SEA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 2nd, 2026.
Check the table below for AS9578's most recent flight history:

AS 9578 Flight Status & Schedule

Date Departure Arrival Status
May 02 17:48 20:16
Unknown
Track >

Alaska Airlines AS 9578 San Diego to Seattle Flight Information

Alaska Airlines Flight AS9578 connects San Diego, United States to Seattle, United States, taking off from San Diego International Airport SAN and landing at Seattle Tacoma International Airport SEA.

How long is the AS9578 flight from San Diego to Seattle?

The average flight time from San Diego to Seattle is 2 hours and 28 minutes. The flight distance is 1692 km / 1051 miles and the average flight speed is 686 km/h / 426 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS9578 San Diego to Seattle?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS9578 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS9578 arriving at?

Flight AS9578 arrives at Seattle Tacoma International Airport (SEA) Terminal 3.

When was the latest AS9578 flight?

The latest flight took off on Sunday, May 3rd, 2026 with the flight status being Unknown on 20:16.

How else can the flight AS9578 be referenced as?

This Alaska Airlines flight can also be referenced as ASA9578, AS 9578, ASA 9578.

How often is flight AS9578 delayed?

On average, 100% of all AS9578 flights are delayed. The average delay is 1 minute.

Can I get compensation for my delayed or cancelled AS9578 flight or baggage issues?

If your AS9578 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our AS9578 Flight Tracker above for more details.

AS9578 and San Diego SAN to Seattle SEA Flights

Other flights departing from San Diego SAN: AS3292, AS1425, AS3310, AS291

Other flights arriving at Seattle SEA: AS2113, AS3433, AS222, AS661

All flights connecting San Diego SAN to Seattle SEA.

AS9578 Alaska Airlines Flight: San Diego to Seattle Route Map

AS9578 Alaska Airlines Flight Map: San Diego to Seattle
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.