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.

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 week?

As of January 2026, 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 often are flights from Japan to Seattle delayed?

Historically, on average around 18% 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 148 minutes.

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

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

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 52m on average. On the other hand, flying from Osaka to Seattle takes 14h 11m 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.

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.

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 54% 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.

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

11 flights are operational daily from Japan to Seattle as of January 2026. The most popular departure time for this route is 6:00PM, with 81% of flights per day taking off in the evening.

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 January 2026, 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.

$391 Cheap Flights from Japan to Seattle in 2026

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Find the cheapest flights from Japan to Seattle

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Japan to Seattle

Enter your travel dates to find the best prices.

4:50 pm - 9:00 am

HND

SEA

9h 10mnonstop

10:40 am - 2:05 pm

SEA

HND

10h 25mnonstop

$602Delta

Thu, Feb 5 - Thu, Mar 5

6:30 pm - 10:40 am

NRT

SEA

9h 10mnonstop

12:50 pm - 4:00 pm

SEA

NRT

10h 10mnonstop

$602Alaska Airlines

Thu, Feb 5 - Thu, Mar 5

8:55 pm - 10:50 am

NRT

SEA

29h 55m

1 stop

1:20 pm - 12:40 pm

SEA

NRT

31h 20m

1 stop

$623Korean Air

Thu, Jun 18 - Wed, Jul 29

2:00 am - 10:50 am

HND

SEA

24h 50m

1 stop

1:20 pm - 10:50 pm

SEA

HND

17h 30m

1 stop

$624Korean Air

Wed, Jun 17 - Mon, Jul 27

6:15 pm - 2:31 pm

NRT

SEA

13h 16m

1 stop

9:55 am - 4:20 pm

SEA

NRT

13h 25m

1 stop

$626Air Canada

Thu, Feb 5 - Sun, Feb 8

6:15 pm - 7:16 pm

NRT

SEA

18h 01m

1 stop

10:05 am - 4:20 pm

SEA

NRT

13h 15m

1 stop

$631Air Canada

Thu, Feb 5 - Wed, Mar 4

3:10 pm - 4:10 pm

KIX

SEA

17h 00m

1 stop

1:15 am - 12:15 pm

SEA

KIX

19h 00m

1 stop

$790STARLUX Airlines

Wed, Apr 29 - Mon, May 4

3:25 pm - 3:05 pm

OKA

SEA

16h 40m

1 stop

12:45 am - 2:15 pm

SEA

OKA

21h 30m

1 stop

$830STARLUX Airlines

Fri, Mar 6 - Mon, Mar 9

10:15 am - 6:30 pm

OKA

SEA

24h 15m

1 stop

11:50 pm - 7:10 pm

SEA

OKA

27h 20m

1 stop

$837EVA Air

Tue, Mar 10 - Sat, Mar 14

10:15 am - 7:10 pm

OKA

SEA

24h 55m

1 stop

1:30 am - 6:55 pm

SEA

OKA

25h 25m

1 stop

$838EVA Air

Thu, Mar 19 - Sun, Mar 29

Korean Air flights from Japan to Seattle

Our best Korean Air deals on Japan to Seattle flight tickets

Korean Air

Jun 18

NRT8:55 pmTokyo Narita

29h 55m

1 stop

SEA10:50 amSeattle/Tacoma Intl

Jul 29

SEA1:20 pmSeattle/Tacoma Intl

31h 20m

1 stop

NRT12:40 pmTokyo Narita

$623

Korean Air

Jun 17

HND2:00 amTokyo Haneda

24h 50m

1 stop

SEA10:50 amSeattle/Tacoma Intl

Jul 27

SEA1:20 pmSeattle/Tacoma Intl

17h 30m

1 stop

HND10:50 pmTokyo Haneda

$624

Korean Air

Mar 4

HND2:00 amTokyo Haneda

24h 00m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Mar 16

SEA12:00 pmSeattle/Tacoma Intl

18h 50m

1 stop

HND10:50 pmTokyo Haneda

$777

Delta flights from Japan to Seattle

Our best Delta deals on Japan to Seattle flight tickets

Delta

Feb 5

HND4:50 pmTokyo Haneda

9h 10m

SEA9:00 amSeattle/Tacoma Intl

Mar 5

SEA10:40 amSeattle/Tacoma Intl

10h 25m

HND2:05 pmTokyo Haneda

$602

Delta

Jan 30

HND4:50 pmTokyo Haneda

9h 05m

SEA8:55 amSeattle/Tacoma Intl

Feb 5

SEA10:35 amSeattle/Tacoma Intl

10h 30m

HND2:05 pmTokyo Haneda

$607

Delta

Mar 3

HND4:50 pmTokyo Haneda

9h 10m

SEA9:00 amSeattle/Tacoma Intl

Mar 8

SEA11:35 amSeattle/Tacoma Intl

10h 30m

HND2:05 pmTokyo Haneda

$608

Fly from

Fly to

Route

Depart

Return

Price

TokyoSeattle

HND - SEA

HNDSEA

Tokyo Haneda

Thu 2/5

4:50 pm-9:00 am

Nonstop9h 10m

Seattle/Tacoma Intl

Thu 3/5

10:40 am-2:05 pm

Nonstop10h 25m

$602

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Thu 2/5

6:30 pm-10:40 am

Nonstop9h 10m

Seattle/Tacoma Intl

Thu 3/5

12:50 pm-4:00 pm

Nonstop10h 10m

$602

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Thu 6/18

8:55 pm-10:50 am

1 stop29h 55m

Seattle/Tacoma Intl

Wed 7/29

1:20 pm-12:40 pm

1 stop31h 20m

$623

TokyoSeattle

HND - SEA

HNDSEA

Tokyo Haneda

Wed 6/17

2:00 am-10:50 am

1 stop24h 50m

Seattle/Tacoma Intl

Mon 7/27

1:20 pm-10:50 pm

1 stop17h 30m

$624

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Thu 2/5

6:15 pm-2:31 pm

1 stop13h 16m

Seattle/Tacoma Intl

Sun 2/8

9:55 am-4:20 pm

1 stop13h 25m

$626

TokyoSeattle

NRT - SEA

NRTSEA

Tokyo Narita

Thu 2/5

6:15 pm-7:16 pm

1 stop18h 01m

Seattle/Tacoma Intl

Wed 3/4

10:05 am-4:20 pm

1 stop13h 15m

$631

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 4/29

3:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Mon 5/4

1:15 am-12:15 pm

1 stop19h 00m

$790

OkinawaSeattle

OKA - SEA

OKASEA

Okinawa Naha

Fri 3/6

3:25 pm-3:05 pm

1 stop16h 40m

Seattle/Tacoma Intl

Mon 3/9

12:45 am-2:15 pm

1 stop21h 30m

$830

OkinawaSeattle

OKA - SEA

OKASEA

Okinawa Naha

Tue 3/10

10:15 am-6:30 pm

1 stop24h 15m

Seattle/Tacoma Intl

Sat 3/14

11:50 pm-7:10 pm

1 stop27h 20m

$837

OkinawaSeattle

OKA - SEA

OKASEA

Okinawa Naha

Thu 3/19

10:15 am-7:10 pm

1 stop24h 55m

Seattle/Tacoma Intl

Sun 3/29

1:30 am-6:55 pm

1 stop25h 25m

$838

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 $702. 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 $752. 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 $1,094.

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

Flying to Seattle from Japan in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $927 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $1,424. 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 Haneda 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 13% 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	$528
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 $528. The best round-trip flight deal from Japan to Seattle found on momondo in the last 72 hours is $602.

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 January 2026, 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 (48.71% of total bookings). The next most popular plane models are Airbus A330-200 (15.67%), Boeing 787-10 Dreamliner (5.88%), and Boeing 787 Dreamliner (5.39%).

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 $318	Free Cancellation	Rating 8.4 1,078 reviews	Search ANA flights
Delta	PriceFrom $535	Free Cancellation	Rating 7.9 8,112 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $698	Free Cancellation	Rating 7.8 2,829 reviews	Search Hawaiian Airlines flights
STARLUX Airlines	PriceFrom $708	Free Cancellation	Rating 8.9 268 reviews	Search STARLUX Airlines flights
Alaska Airlines	PriceFrom $723	Free Cancellation	Rating 8.0 11,787 reviews	Search Alaska Airlines flights
EVA Air	PriceFrom $878	Free Cancellation	Rating 8.4 1,332 reviews	Search EVA Air flights

Tacoma

Leavenworth

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Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Redmond

Puyallup

Cle Elum

Tukwila

Lakewood

Federal Way

Centralia

Westport

Kirkland

Fife

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 $391

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 6/1. 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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Filter for what you want

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Find the cheapest flights from Japan to Seattle

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Korean Air flights from Japan to Seattle

Our best Korean Air deals on Japan to Seattle flight tickets

Delta flights from Japan to Seattle

Our best Delta deals on Japan to Seattle flight tickets

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Use the filters below to find and compare flights from Japan to Seattle that are best for you.

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 Haneda 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 13% 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 China 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 18% 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 148 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 January 2026. 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 January 2026, 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