AS 8423 Seattle to Tokyo Flight Status

Alaska Airlines Flight AS8423 from Seattle Tacoma International Airport SEA to Tokyo Narita International Airport NRT is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on April 20th, 2026.
Check the table below for AS8423's most recent flight history:

AS 8423 Flight Status & Schedule

Date Departure Arrival Status
Apr 20 13:59 15:38
Landed
Track >
Apr 19 14:17 15:45
Landed
Track >
Apr 18 13:58 15:41
Landed
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Apr 17 14:05 15:57
Landed
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Apr 16 14:29 16:08
Landed
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Alaska Airlines AS 8423 Seattle to Tokyo Flight Information

Alaska Airlines Flight AS8423 connects Seattle, United States to Tokyo, Japan, taking off from Seattle Tacoma International Airport SEA and landing at Tokyo Narita International Airport NRT.

How long is the AS8423 flight from Seattle to Tokyo?

The average flight time from Seattle to Tokyo is 9 hours and 40 minutes. The flight distance is 7655 km / 4757 miles and the average flight speed is 792 km/h / 492 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS8423 Seattle to Tokyo?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS8423 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS8423 arriving at?

Flight AS8423 arrives at Tokyo Narita International Airport (NRT) Terminal 2.

When was the latest AS8423 flight?

The latest flight took off on Tuesday, April 21st, 2026 with the flight status being Landed on 15:38.

How else can the flight AS8423 be referenced as?

This Alaska Airlines flight can also be referenced as ASA8423, AS 8423, ASA 8423.

How often is flight AS8423 delayed?

On average, 20% of all AS8423 flights are delayed. The average delay is 8 minutes.

Can I get compensation for my delayed or cancelled AS8423 flight or baggage issues?

If your AS8423 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 AS8423 Flight Tracker above for more details.

AS8423 and Seattle SEA to Tokyo NRT Flights

Other flights departing from Seattle SEA: OO282, AS823, AS2408, UA2860

Other flights arriving at Tokyo NRT: CI5153, AS823, NQ802, K4202

All flights connecting Seattle SEA to Tokyo NRT.

AS8423 Alaska Airlines Flight: Seattle to Tokyo Route Map

AS8423 Alaska Airlines Flight Map: Seattle to Tokyo
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.