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

According to our data, ANA have had the least number of delays on this route over the last 12 months; with about 4% of their flights experiencing any sort of delay.

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

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

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

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

How often are flights from Japan to Seattle delayed?

Historically, on average around 17% of flights between Japan and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

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

As of December 2025, 77 flights take off from Japan and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

What airlines fly to Seattle?

Delta, EVA Air and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Japan according to our data. Delta is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

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

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

11 flights are operational daily from Japan to Seattle as of December 2025. The most popular departure time for this route is 6:00PM, with 81% of flights per day taking off in the evening.

How long does it take to fly to Seattle?

Flight times vary depending on what airport in Japan you fly out of and what airport in Seattle you fly into. For example, flying from Tokyo to Seattle takes 8h 47m on average. On the other hand, flying from Osaka to Seattle takes 14h 42m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

Prices for flights from Japan to Seattle/Tacoma Intl Airport are updated daily.

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

As of December 2025, there are 6 operators available to choose from for flights from Japan to Seattle/Tacoma Intl Airport.

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

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 Japan to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$378 Cheap Flights from Japan to Seattle in 2025/26

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Find the cheapest flights from Japan to Seattle

Round-trip

One-way

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Recent round-trip flight deals from Japan to Seattle

Enter your travel dates to find the best prices.

6:30 pm - 10:40 am

NRT

SEA

9h 10mnonstop

12:20 pm - 4:00 pm

SEA

NRT

10h 40mnonstop

$579Hawaiian Airlines

Wed, Jan 21 - Wed, Jan 28

9:15 am - 9:00 am

NRT

SEA

16h 45m1 stop

11:00 am - 3:45 pm

SEA

NRT

35h 45m1 stop

$587Korean Air

Wed, Jan 21 - Wed, Jan 28

6:30 pm - 10:40 am

NRT

SEA

9h 10mnonstop

12:20 pm - 4:00 pm

SEA

NRT

10h 40mnonstop

$591Hawaiian Airlines

Tue, Jan 20 - Thu, Jan 29

9:20 pm - 9:00 pm

HND

SEA

16h 40m1 stop

7:00 am - 7:30 pm

SEA

HND

19h 30m1 stop

$592Hawaiian Airlines

Wed, Jan 21 - Wed, Jan 28

4:50 pm - 8:55 am

HND

SEA

9h 05mnonstop

10:40 am - 2:05 pm

SEA

HND

10h 25mnonstop

$600Delta

Tue, Jan 20 - Tue, Jan 27

4:50 pm - 8:55 am

HND

SEA

9h 05mnonstop

10:35 am - 2:05 pm

SEA

HND

10h 30mnonstop

$603Delta

Tue, Jan 27 - Mon, Feb 23

12:15 pm - 6:10 pm

FUK

SEA

22h 55m1 stop

12:10 am - 11:15 am

SEA

FUK

18h 05m1 stop

$902EVA Air

Thu, Jan 22 - Sun, Jan 25

2:30 pm - 10:40 am

NGO

SEA

13h 10m1 stop

7:00 am - 9:10 am

SEA

NGO

33h 10m2 stops

$1,131Alaska Airlines

Wed, Feb 4 - Sun, Feb 8

7:35 pm - 4:52 pm

IWK

SEA

38h 17m2 stops

5:10 pm - 6:50 pm

SEA

IWK

32h 40m2 stops

$3,028ANA

Sun, Jan 4 - Sat, Jan 24

7:35 pm - 4:52 pm

IWK

SEA

38h 17m2 stops

5:10 pm - 6:50 pm

SEA

IWK

32h 40m2 stops

$3,044ANA

Sun, Jan 4 - Sat, Jan 24

Korean Air flights from Japan to Seattle

Our best Korean Air deals on Japan to Seattle flight tickets

Korean Air

Jan 21

NRT9:15 amTokyo Narita

16h 45m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Jan 28

SEA11:00 amSeattle/Tacoma Intl

35h 45m

1 stop

NRT3:45 pmTokyo Narita

$587

Find similar

Korean Air

Jan 23

NRT9:15 amTokyo Narita

16h 45m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Feb 8

SEA11:00 amSeattle/Tacoma Intl

35h 45m

1 stop

NRT3:45 pmTokyo Narita

$594

Find similar

Korean Air

Jan 22

HND2:00 amTokyo Haneda

24h 00m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Feb 8

SEA11:00 amSeattle/Tacoma Intl

18h 50m

1 stop

HND10:50 pmTokyo Haneda

$595

Find similar

ANA flights from Japan to Seattle

Our best ANA deals on Japan to Seattle flight tickets

ANA

Mar 1

ITM4:00 pmOsaka Itami

20h 16m

2 stops

SEA7:16 pmSeattle/Tacoma Intl

Mar 18

SEA4:45 pmSeattle/Tacoma Intl

22h 45m

1 stop

ITM7:30 amOsaka Itami

$1,268

Find similar

ANA

Dec 25

HND9:15 pmTokyo Haneda

9h 05m

SEA1:20 pmSeattle/Tacoma Intl

Dec 31

SEA3:45 pmSeattle/Tacoma Intl

10h 30m

HND7:15 pmTokyo Haneda

$1,629

Find similar

ANA

Dec 23

HND1:20 pmTokyo Haneda

20h 32m

2 stops

SEA4:52 pmSeattle/Tacoma Intl

Dec 27

SEA7:12 pmSeattle/Tacoma Intl

26h 38m

1 stop

HND2:50 pmTokyo Haneda

$1,938

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Wed 1/21

6:30 pm-10:40 am

Nonstop9h 10m

Seattle/Tacoma Intl

Wed 1/28

12:20 pm-4:00 pm

Nonstop10h 40m

$579

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Wed 1/21

9:15 am-9:00 am

1 stop16h 45m

Seattle/Tacoma Intl

Wed 1/28

11:00 am-3:45 pm

1 stop35h 45m

$587

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Tue 1/20

6:30 pm-10:40 am

Nonstop9h 10m

Seattle/Tacoma Intl

Thu 1/29

12:20 pm-4:00 pm

Nonstop10h 40m

$591

TokyoSeattle

HND - SEA

HNDSEA

Tokyo Haneda

Wed 1/21

9:20 pm-9:00 pm

1 stop16h 40m

Seattle/Tacoma Intl

Wed 1/28

7:00 am-7:30 pm

1 stop19h 30m

$592

TokyoSeattle

HND - SEA

HNDSEA

Tokyo Haneda

Tue 1/20

4:50 pm-8:55 am

Nonstop9h 05m

Seattle/Tacoma Intl

Tue 1/27

10:40 am-2:05 pm

Nonstop10h 25m

$600

TokyoSeattle

HND - SEA

HNDSEA

Tokyo Haneda

Tue 1/27

4:50 pm-8:55 am

Nonstop9h 05m

Seattle/Tacoma Intl

Mon 2/23

10:35 am-2:05 pm

Nonstop10h 30m

$603

FukuokaSeattle

FUK - SEA

FUKSEA

Fukuoka

Thu 1/22

12:15 pm-6:10 pm

1 stop22h 55m

Seattle/Tacoma Intl

Sun 1/25

12:10 am-11:15 am

1 stop18h 05m

$902

NagoyaSeattle

NGO - SEA

NGOSEA

Nagoya Chubu Centrair Intl

Wed 2/4

2:30 pm-10:40 am

1 stop13h 10m

Seattle/Tacoma Intl

Sun 2/8

7:00 am-9:10 am

2 stops33h 10m

$1,131

IwakuniSeattle

IWK - SEA

IWKSEA

MCAS Iwakuni

Sun 1/4

7:35 pm-4:52 pm

2 stops38h 17m

Seattle/Tacoma Intl

Sat 1/24

5:10 pm-6:50 pm

2 stops32h 40m

$3,028

IwakuniSeattle

IWK - SEA

IWKSEA

MCAS Iwakuni

Sun 1/4

7:35 pm-4:52 pm

2 stops38h 17m

Seattle/Tacoma Intl

Sat 1/24

5:10 pm-6:50 pm

2 stops32h 40m

$3,044

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Japan to Seattle

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 Seattle?

In general, December is the cheapest month to fly from Japan to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $705. If you don’t want to visit Seattle in December, then you should wait until November to fly from Japan, when ticket prices are also cheap, with an average price of $733.

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

On average, the least expensive day to fly to Seattle from Japan is on a Thursday. momondo users have found tickets for Thursday departures for as low as $840. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Japan because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,101.

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

Flying to Seattle from Japan in the morning is the least expensive time of day to depart. momondo users have found prices as low as $958 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $1,574. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

There are 4 cabin classes available to choose from on Japan to Seattle/Tacoma Intl 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 Japan to Seattle flights?

You could potentially save up to 16% on your flight if you consider stops on a Japan to Seattle flight.

Cheap Japan to Seattle flight deals and tips

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

Best Price Found	$438
Fastest flight time	8h 40m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Japan in the past 72 hours is $438. The best round-trip flight deal from Japan to Seattle found on momondo in the last 72 hours is $583.

The fastest flight from Japan to Seattle takes 8h 40m

Direct flights go from Japan to Seattle every day.

There is 1 airport in Seattle. From Japan there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

When did momondo last update prices for flights from Japan to Seattle/Tacoma Intl Airport?
Prices for flights from Japan to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Japan to Seattle/Tacoma Intl Airport?
As of December 2025, there are 6 operators available to choose from for flights from Japan to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Japan to Seattle/Tacoma Intl Airport?
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 Japan to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Japan to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Japan to Seattle is Boeing 787-9 Dreamliner (50.36% of total bookings). The next most popular plane models are Airbus A330-200 (20.54%), Boeing 787-10 Dreamliner (5.42%), and Boeing 787-8 Dreamliner (5.42%).

Best airlines flying from Japan to Seattle

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

Airline	Rating	Free Cancellation	Price
ANA	PriceFrom $412	Free Cancellation	Rating 8.4 1,021 reviews	Search ANA flights
Delta	PriceFrom $617	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $698	Free Cancellation	Rating 7.8 2,817 reviews	Search Hawaiian Airlines flights
STARLUX Airlines	PriceFrom $708	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights
Alaska Airlines	PriceFrom $723	Free Cancellation	Rating 8.0 11,431 reviews	Search Alaska Airlines flights
EVA Air	PriceFrom $878	Free Cancellation	Rating 8.4 1,296 reviews	Search EVA Air flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Westport

Kirkland

Centralia

Shoreline

Why use momondo?

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

Finding the right flight to Seattle from Japan is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Seattle from Japan which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Japan to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Japan to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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Cheap flights from Japan to Seattle from $378

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Japan to Seattle departing on 2/6. 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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Korean Air flights from Japan to Seattle

Our best Korean Air deals on Japan to Seattle flight tickets

ANA flights from Japan to Seattle

Our best ANA deals on Japan to Seattle flight tickets

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See travel insights to Seattle from

How to get the cheapest flight ticket from Japan to Seattle

What is the cheapest month to fly to Seattle?

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

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

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

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

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

There are 4 cabin classes available to choose from on Japan to Seattle/Tacoma Intl 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 Japan to Seattle flights?

You could potentially save up to 16% on your flight if you consider stops on a Japan to Seattle flight.

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

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

What airlines fly to Seattle?

How often are flights from Japan to Seattle delayed?

Historically, on average around 17% of flights between Japan and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

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

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

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

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

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

According to our data, ANA have had the least number of delays on this route over the last 12 months; with about 4% of their flights experiencing any sort of delay.

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

11 flights are operational daily from Japan to Seattle as of December 2025. The most popular departure time for this route is 6:00PM, with 81% of flights per day taking off in the evening.

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

As of December 2025, 77 flights take off from Japan and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long does it take to fly to Seattle?

Cheap Japan to Seattle flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

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

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

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

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

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

Best airlines flying from Japan to Seattle

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

Traveling to a place near Seattle?

Why use momondo?

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

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

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

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

An easier way to manage your Seattle 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 the United States

Airports servicing Washington