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.

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 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 51% 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.

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.

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 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.

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.

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

Air Canada, Japan Airlines, and ANA 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.

$319 Cheap Flights from Seattle to Japan in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 8:35 pm

SEA

KIX

35h 55m2 stops

9:10 pm - 9:31 am

KIX

SEA

53h 21m2 stops

$597Multiple Airlines

sáb., ene. 24 - sáb., ene. 31

8:00 pm - 6:55 pm

SEA

ITM

29h 55m2 stops

2:05 pm - 10:06 pm

ITM

SEA

25h 01m2 stops

$599Air Canada

mar., feb. 3 - lun., feb. 9

12:30 pm - 3:40 pm

SEA

NRT

10h 10mnonstop

6:10 pm - 10:55 am

NRT

SEA

8h 45mnonstop

$606Japan Airlines

mar., mar. 3 - mar., mar. 10

3:39 pm - 4:00 pm

SEA

NRT

31h 21m1 stop

6:10 pm - 9:55 am

NRT

SEA

8h 45mnonstop

$607Japan Airlines

vie., ene. 23 - sáb., ene. 31

3:45 pm - 7:15 pm

SEA

HND

10h 30mnonstop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$609ANA

dom., ene. 18 - jue., ene. 29

6:18 am - 2:50 pm

SEA

HND

15h 32m1 stop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$614ANA

dom., ene. 18 - jue., ene. 29

11:00 am - 5:05 pm

SEA

OKA

37h 05m1 stop

6:05 pm - 9:00 am

OKA

SEA

31h 55m1 stop

$615Korean Air

vie., ene. 23 - jue., ene. 29

11:00 am - 5:05 pm

SEA

OKA

37h 05m1 stop

6:05 pm - 9:00 am

OKA

SEA

31h 55m1 stop

$616Korean Air

vie., ene. 23 - vie., ene. 30

12:10 am - 9:40 am

SEA

KIX

17h 30m1 stop

10:50 am - 2:55 pm

KIX

SEA

20h 05m1 stop

$634Asiana Airlines

dom., abr. 19 - jue., abr. 30

12:10 am - 2:40 pm

SEA

FUK

22h 30m1 stop

3:50 pm - 2:55 pm

FUK

SEA

15h 05m1 stop

$642Asiana Airlines

dom., mar. 15 - lun., mar. 23

Korean Air flights from Seattle to Japan

Our best Korean Air deals on Seattle to Japan flight tickets

Korean Air

Jan 23

SEA11:00 amSeattle/Tacoma Intl

37h 05m

1 stop

OKA5:05 pmOkinawa Naha

Jan 29

OKA6:05 pmOkinawa Naha

31h 55m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$615

Find similar

Korean Air

Jan 23

SEA11:00 amSeattle/Tacoma Intl

37h 05m

1 stop

OKA5:05 pmOkinawa Naha

Jan 30

OKA6:05 pmOkinawa Naha

31h 55m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$616

Find similar

Korean Air

Jan 25

SEA11:00 amSeattle/Tacoma Intl

32h 50m

1 stop

CTS12:50 pmSapporo Chitose

Feb 1

CTS2:00 pmSapporo Chitose

36h 00m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$622

Find similar

Japan Airlines flights from Seattle to Japan

Our best Japan Airlines deals on Seattle to Japan flight tickets

Japan Airlines

Jan 8

SEA12:30 pmSeattle/Tacoma Intl

10h 10m

NRT3:40 pmTokyo Narita

Jan 24

NRT6:10 pmTokyo Narita

8h 45m

SEA9:55 amSeattle/Tacoma Intl

$606

Find similar

Japan Airlines

Jan 23

SEA3:39 pmSeattle/Tacoma Intl

31h 21m

1 stop

NRT4:00 pmTokyo Narita

Jan 31

NRT6:10 pmTokyo Narita

8h 45m

SEA9:55 amSeattle/Tacoma Intl

$607

Find similar

Japan Airlines

Mar 1

SEA8:15 amSeattle/Tacoma Intl

16h 05m

1 stop

HND5:20 pmTokyo Haneda

Mar 10

HND6:05 pmTokyo Haneda

13h 59m

1 stop

SEA4:04 pmSeattle/Tacoma Intl

$610

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

sáb. 1/24

3:40 pm-8:35 pm

2 stops35h 55m

Osaka Kansai Intl

sáb. 1/31

9:10 pm-9:31 am

2 stops53h 21m

$597

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

mar. 2/3

8:00 pm-6:55 pm

2 stops29h 55m

Osaka Itami

lun. 2/9

2:05 pm-10:06 pm

2 stops25h 01m

$599

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

mar. 3/3

12:30 pm-3:40 pm

Nonstop10h 10m

Tokyo Narita

mar. 3/10

6:10 pm-10:55 am

Nonstop8h 45m

$606

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

vie. 1/23

3:39 pm-4:00 pm

1 stop31h 21m

Tokyo Narita

sáb. 1/31

6:10 pm-9:55 am

Nonstop8h 45m

$607

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

dom. 1/18

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

jue. 1/29

9:15 pm-1:20 pm

Nonstop9h 05m

$609

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

dom. 1/18

6:18 am-2:50 pm

1 stop15h 32m

Tokyo Haneda

jue. 1/29

9:15 pm-1:20 pm

Nonstop9h 05m

$614

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

vie. 1/23

11:00 am-5:05 pm

1 stop37h 05m

Okinawa Naha

jue. 1/29

6:05 pm-9:00 am

1 stop31h 55m

$615

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

vie. 1/23

11:00 am-5:05 pm

1 stop37h 05m

Okinawa Naha

vie. 1/30

6:05 pm-9:00 am

1 stop31h 55m

$616

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

dom. 4/19

12:10 am-9:40 am

1 stop17h 30m

Osaka Kansai Intl

jue. 4/30

10:50 am-2:55 pm

1 stop20h 05m

$634

SeattleFukuoka

SEA - FUK

SEAFUK

Seattle/Tacoma Intl

dom. 3/15

12:10 am-2:40 pm

1 stop22h 30m

Fukuoka

lun. 3/23

3:50 pm-2:55 pm

1 stop15h 05m

$642

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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 $753. 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 $850. 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 $992. 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 $859 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 $999 per ticket.

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

Fly from Seattle/Tacoma Intl to Tokyo Narita 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 $949 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 $849 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 8% 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	$362
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 $362. The best round-trip flight deal from Seattle to Japan found on momondo in the last 72 hours is $674.

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 80.63% of all bookings. The subsequent popular models are Airbus A330-200 at 10.03%, Boeing 787 Dreamliner at 5.50%, and Airbus A350-900 at 0.96%.

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 2,817 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $370	Free Cancellation	Rating 8.0 11,431 reviews	Search Alaska Airlines flights
Asiana Airlines	PriceFrom $547	Free Cancellation	Rating 8.2 492 reviews	Search Asiana Airlines flights
Air Canada	PriceFrom $589	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights
ANA	PriceFrom $618	Free Cancellation	Rating 8.4 1,021 reviews	Search ANA flights
Japan Airlines	PriceFrom $636	Free Cancellation	Rating 8.3 1,652 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $644	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Delta	PriceFrom $699	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
Korean Air	PriceFrom $702	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
China Airlines	PriceFrom $730	Free Cancellation	Rating 8.2 788 reviews	Search China 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 $327

Flights to Osakafrom $543

Flights to Okinawafrom $579

Flights to Fukuokafrom $569

Flights to Nagoyafrom $552

Flights to Hiroshimafrom $595

Flights to Ishigakifrom $782

Flights to Kagoshimafrom $622

Flights to Hakodatefrom $769

Flights to Miyakojimafrom $2,075

Flights to Toyamafrom $806

Flights to Sendaifrom $732

Cheap flights from Seattle to Japan from $319

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 1/31. 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 Seattle to Japan

Our best Korean Air deals on Seattle to Japan flight tickets

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Our best Japan 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 Narita 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 8% 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?

Air Canada, Japan Airlines, and ANA 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