How often are flights from Seattle to Japan delayed?

Historically, on average around 16% of flights between Seattle and Japan have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

What is the most punctual flight time for Seattle to Japan flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Seattle to Japan flights?

According to our data, ANA have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

How many flights depart from Seattle to Japan on average per week?

77 flights are operational weekly from Seattle to Japan as of December 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What airlines fly to Japan?

ANA, Delta and Japan Airlines are the top three most popular airlines that fly to Japan from Seattle according to our data. ANA is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 14 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

How many flights depart from Seattle to Japan on average per day?

The number of flights available between Seattle and Japan is 11 per day as of December 2025. The most frequent departure time is 12:00PM, with 81% of daily flights leaving in the afternoon.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Japan?

Alaska Airlines, Japan Airlines, and Korean Air are the most popular carriers operating from Seattle/Tacoma Intl to Japan

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Japan?

Prices for flights from Seattle/Tacoma Intl Airport to Japan were last updated today.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Japan?

There are 14 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of December 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Japan?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Japan.

What documentation or ID do you need to fly to Japan?

The necessary travel and health documents for your Japan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$322 Cheap Flights from Seattle to Japan in 2025/26

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Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:30 pm - 3:40 pm

SEA

NRT

10h 10mnonstop

6:10 pm - 9:55 am

NRT

SEA

8h 45mnonstop

$604Japan Airlines

Tue, Jan 20 - Tue, Jan 27

5:50 am - 4:20 pm

SEA

NRT

17h 30m1 stop

11:40 am - 3:01 pm

NRT

SEA

20h 21m2 stops

$605Multiple Airlines

Sun, Feb 1 - Tue, Mar 3

12:30 pm - 3:40 pm

SEA

NRT

10h 10mnonstop

5:40 pm - 4:04 pm

NRT

SEA

14h 24m1 stop

$607Japan Airlines

Mon, Mar 2 - Tue, Mar 10

8:00 pm - 4:20 pm

SEA

NRT

27h 20m1 stop

6:15 pm - 7:16 pm

NRT

SEA

18h 01m1 stop

$608Air Canada

Thu, Jan 15 - Thu, Jan 22

5:50 am - 4:20 pm

SEA

NRT

17h 30m1 stop

6:15 pm - 7:16 pm

NRT

SEA

18h 01m1 stop

$609Air Canada

Thu, Feb 5 - Thu, Feb 12

3:45 pm - 7:15 pm

SEA

HND

10h 30mnonstop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$618ANA

Thu, Jan 15 - Sun, Jan 25

6:03 am - 2:50 pm

SEA

HND

15h 47m1 stop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$623ANA

Thu, Jan 15 - Sun, Jan 25

12:10 am - 10:40 am

SEA

OKA

17h 30m1 stop

12:00 pm - 1:55 pm

OKA

SEA

18h 55m1 stop

$625Asiana Airlines

Sun, Feb 1 - Wed, Feb 11

12:10 am - 9:40 am

SEA

KIX

17h 30m1 stop

9:10 am - 2:55 pm

KIX

SEA

21h 45m1 stop

$626Asiana Airlines

Sun, Apr 12 - Mon, Apr 27

6:30 am - 6:30 pm

SEA

FUK

19h 00m2 stops

12:40 pm - 9:12 pm

FUK

SEA

25h 32m2 stops

$672United Airlines

Wed, Feb 4 - Wed, Feb 11

EVA Air flights from Seattle to Japan

Our best EVA Air deals on Seattle to Japan flight tickets

EVA Air

Apr 2

SEA1:30 amSeattle/Tacoma Intl

17h 50m

1 stop

FUK11:20 amFukuoka

Apr 11

FUK12:20 pmFukuoka

23h 10m

1 stop

SEA7:30 pmSeattle/Tacoma Intl

$945

Find similar

EVA Air

Jan 3

SEA12:10 amSeattle/Tacoma Intl

16h 45m

1 stop

KIX9:55 amOsaka Kansai Intl

Mar 28

KIX12:55 pmOsaka Kansai Intl

22h 15m

1 stop

SEA7:10 pmSeattle/Tacoma Intl

$1,031

Find similar

EVA Air

Dec 31

SEA12:10 amSeattle/Tacoma Intl

27h 10m

1 stop

HND8:20 pmTokyo Haneda

Jan 15

HND10:25 amTokyo Haneda

24h 45m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$1,085

Find similar

Asiana Airlines flights from Seattle to Japan

Our best Asiana Airlines deals on Seattle to Japan flight tickets

Asiana Airlines

Feb 28

SEA12:10 amSeattle/Tacoma Intl

24h 45m

1 stop

NRT5:55 pmTokyo Narita

Mar 15

NRT1:20 pmTokyo Narita

17h 35m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$616

Find similar

Asiana Airlines

Feb 1

SEA12:10 amSeattle/Tacoma Intl

17h 30m

1 stop

OKA10:40 amOkinawa Naha

Feb 11

OKA12:00 pmOkinawa Naha

18h 55m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$625

Find similar

Asiana Airlines

Apr 12

SEA12:10 amSeattle/Tacoma Intl

17h 30m

1 stop

KIX9:40 amOsaka Kansai Intl

Apr 27

KIX9:10 amOsaka Kansai Intl

21h 45m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$626

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 1/20

12:30 pm-3:40 pm

Nonstop10h 10m

Tokyo Narita

Tue 1/27

6:10 pm-9:55 am

Nonstop8h 45m

$604

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Sun 2/1

5:50 am-4:20 pm

1 stop17h 30m

Tokyo Narita

Tue 3/3

11:40 am-3:01 pm

2 stops20h 21m

$605

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Mon 3/2

12:30 pm-3:40 pm

Nonstop10h 10m

Tokyo Narita

Tue 3/10

5:40 pm-4:04 pm

1 stop14h 24m

$607

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Thu 1/15

8:00 pm-4:20 pm

1 stop27h 20m

Tokyo Narita

Thu 1/22

6:15 pm-7:16 pm

1 stop18h 01m

$608

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Thu 2/5

5:50 am-4:20 pm

1 stop17h 30m

Tokyo Narita

Thu 2/12

6:15 pm-7:16 pm

1 stop18h 01m

$609

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Thu 1/15

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Sun 1/25

9:15 pm-1:20 pm

Nonstop9h 05m

$618

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Thu 1/15

6:03 am-2:50 pm

1 stop15h 47m

Tokyo Haneda

Sun 1/25

9:15 pm-1:20 pm

Nonstop9h 05m

$623

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Sun 2/1

12:10 am-10:40 am

1 stop17h 30m

Okinawa Naha

Wed 2/11

12:00 pm-1:55 pm

1 stop18h 55m

$625

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 4/12

12:10 am-9:40 am

1 stop17h 30m

Osaka Kansai Intl

Mon 4/27

9:10 am-2:55 pm

1 stop21h 45m

$626

SeattleFukuoka

SEA - FUK

SEAFUK

Seattle/Tacoma Intl

Wed 2/4

6:30 am-6:30 pm

2 stops19h 00m

Fukuoka

Wed 2/11

12:40 pm-9:12 pm

2 stops25h 32m

$672

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How to get the cheapest flight ticket from Seattle to Japan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Japan?

The month of January is, on average, the cheapest month to fly to Japan from Seattle, with most prices found around $738. If you aren’t able to travel to Japan during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $770.

What is the cheapest day to depart on your flight to Japan?

On average, the least expensive day to fly to Japan from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $843. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to Japan on a Saturday will generally be more expensive and average around $980. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Japan?

Flying to Japan from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $849 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to Japan, so prices are often more expensive at around $992 per ticket.

What is the cheapest Seattle/Tacoma Intl to Japan flight route?

Fly from Seattle/Tacoma Intl to Tokyo Haneda for the best Seattle/Tacoma Intl - Japan flight prices

How far in advance should I book a flight to Japan?

You are more likely to see cheaper flights to Japan from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $947 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from Seattle for as low as $844 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Japan flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Japan flights?

You could potentially save up to 11% on your flight if you consider stops on a Seattle to Japan flight.

Cheap Seattle to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Japan

Best Price Found	$361
Fastest flight time	10h 00m
Direct flights	Every day
Airports in Japan	202 airports

The best one-way flight to Japan from Seattle in the past 72 hours is $361. The best round-trip flight deal from Seattle to Japan found on momondo in the last 72 hours is $667.

The fastest flight from Seattle to Japan takes 10h 00m

Direct flights go from Seattle to Japan every day.

There are 202 airports in Japan. From Seattle there are direct flights to Tokyo Narita (NRT).

Search flight deals

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Japan?
Prices for flights from Seattle/Tacoma Intl Airport to Japan were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Japan?
There are 14 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of December 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Japan?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Japan.
What documentation or ID do you need to fly to Japan?
The necessary travel and health documents for your Japan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Japan?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Japan is Boeing 787-9 Dreamliner, representing 82.17% of all bookings. The subsequent popular models are Airbus A330-200 at 7.67%, Boeing 787 Dreamliner at 6.34%, and Airbus A350-900 at 1.02%.

Best airlines flying from Seattle to Japan

Compare and see reviews for airlines that fly from Seattle to Japan with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $359	Free Cancellation	Rating 7.8 2,820 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $370	Free Cancellation	Rating 8.0 11,517 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $547	Free Cancellation	Rating 8.2 499 reviews	Search Asiana Airlines flights
Air Canada	PriceFrom $589	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
ANA	PriceFrom $617	Free Cancellation	Rating 8.4 1,040 reviews	Search ANA flights
Japan Airlines	PriceFrom $636	Free Cancellation	Rating 8.3 1,662 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $644	Free Cancellation	Rating 7.4 9,109 reviews	Search United Airlines flights
Korean Air	PriceFrom $660	Free Cancellation	Rating 8.4 1,185 reviews	Search Korean Air flights
Delta	PriceFrom $691	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
Philippine Airlines	PriceFrom $732	Free Cancellation	Rating 7.3 943 reviews	Search Philippine Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Japan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Japan from Seattle.

Can I find flights from Seattle to Japan with flexible booking policies on momondo?

Yes. All flights to Japan from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Japan?

momondo provides multiple filters to help you find the best flight to Japan from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Japan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Japan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Japan

Popular cities in Japan

Flights to Tokyofrom $455

Flights to Osakafrom $555

Flights to Okinawafrom $579

Flights to Fukuokafrom $583

Flights to Nagoyafrom $553

Flights to Hiroshimafrom $607

Flights to Ishigakifrom $1,018

Flights to Kagoshimafrom $719

Flights to Hakodatefrom $1,021

Flights to Toyamafrom $853

Flights to Sendaifrom $624

Flights to Nagasakifrom $641

Cheap flights from Seattle to Japan from $322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Japan departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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EVA Air flights from Seattle to Japan

Our best EVA Air deals on Seattle to Japan flight tickets

Asiana Airlines flights from Seattle to Japan

Our best Asiana Airlines deals on Seattle to Japan flight tickets

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See travel insights to Japan from

How to get the cheapest flight ticket from Seattle to Japan

What is the cheapest month to fly to Japan?

What is the cheapest day to depart on your flight to Japan?

What is the cheapest time of day to depart on your flight to Japan?

What is the cheapest Seattle/Tacoma Intl to Japan flight route?

Fly from Seattle/Tacoma Intl to Tokyo Haneda for the best Seattle/Tacoma Intl - Japan flight prices

How far in advance should I book a flight to Japan?

What cabin class options are available on Seattle/Tacoma Intl to Japan flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Japan flights?

You could potentially save up to 11% on your flight if you consider stops on a Seattle to Japan flight.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Japan?

Alaska Airlines, Japan Airlines, and Korean Air are the most popular carriers operating from Seattle/Tacoma Intl to Japan

What airlines fly to Japan?

How often are flights from Seattle to Japan delayed?

Historically, on average around 16% of flights between Seattle and Japan have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

What is the most punctual flight time for Seattle to Japan flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Seattle to Japan flights?

According to our data, ANA have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

How many flights depart from Seattle to Japan on average per day?

The number of flights available between Seattle and Japan is 11 per day as of December 2025. The most frequent departure time is 12:00PM, with 81% of daily flights leaving in the afternoon.

How many flights depart from Seattle to Japan on average per week?

77 flights are operational weekly from Seattle to Japan as of December 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

Cheap Seattle to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Japan

Best Price Found

Fastest flight time

Direct flights

Airports in Japan

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Japan?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Japan?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Japan?

What documentation or ID do you need to fly to Japan?

What is the most popular plane model from Seattle to Japan?

Best airlines flying from Seattle to Japan

Compare and see reviews for airlines that fly from Seattle to Japan with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Japan?

Can I find flights from Seattle to Japan with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Japan?

I’m not ready to book a flight from Seattle to Japan right now. Can momondo alert me if prices change?

An easier way to manage your Japan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Japan

Popular cities in Japan

Popular flights according to clicks in the last 7 days on momondo