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

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

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 50% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 15 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 October 2025. The most frequent departure time is 1:00PM, 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 October 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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 15 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of October 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.

$328 Cheap Flights from Seattle to Japan in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 10:40 amSEA-OKA

17h 30m1 stop

12:00 pm - 1:55 pmOKA-SEA

18h 55m1 stop

$548Asiana Airlines

Find Deal

Mon, Nov 3 - Tue, Nov 18

12:10 am - 10:40 amSEA-OKA

18h 30m1 stop

12:00 pm - 1:55 pmOKA-SEA

18h 55m1 stop

$550Asiana Airlines

Find Deal

Sun, Oct 26 - Thu, Nov 27

3:45 pm - 8:35 amSEA-KIX

23h 50m1 stop

3:45 pm - 1:20 pmKIX-SEA

14h 35m1 stop

$615ANA

Find Deal

Sat, Feb 7 - Sat, Feb 14

3:45 pm - 8:35 amSEA-KIX

23h 50m1 stop

7:00 pm - 9:01 pmKIX-SEA

19h 01m2 stops

$624ANA

Find Deal

Sat, Feb 7 - Sat, Feb 14

6:00 am - 4:40 pmSEA-NRT

17h 40m1 stop

7:20 pm - 2:34 pmNRT-SEA

12h 14m1 stop

$641Japan Airlines

Find Deal

Tue, Jan 27 - Tue, Feb 3

6:20 am - 4:40 pmSEA-NRT

17h 20m1 stop

6:10 pm - 9:50 amNRT-SEA

8h 40mnonstop

$643Japan Airlines

Find Deal

Mon, Nov 17 - Tue, Nov 25

12:20 pm - 4:00 pmSEA-NRT

10h 40mnonstop

6:30 pm - 10:40 amNRT-SEA

9h 10mnonstop

$646Alaska Airlines

Find Deal

Mon, Jan 12 - Tue, Jan 20

10:15 am - 2:05 pmSEA-HND

10h 50mnonstop

4:50 pm - 8:45 amHND-SEA

8h 55mnonstop

$672Delta

Find Deal

Sun, Nov 16 - Fri, Dec 12

11:25 am - 8:40 pmSEA-NGO

16h 15m1 stop

9:00 am - 1:20 pmNGO-SEA

21h 20m1 stop

$686Delta

Find Deal

Wed, Jan 7 - Wed, Jan 21

12:10 pm - 7:45 pmSEA-NGO

14h 35m1 stop

8:20 am - 9:50 amNGO-SEA

18h 30m1 stop

$843Alaska Airlines

Find Deal

Tue, Nov 18 - Wed, Dec 3

China Airlines flights from Seattle to Japan

Our best China Airlines deals on Seattle to Japan flight tickets

China Airlines

Oct 19

SEA1:10 amSeattle/Tacoma Intl

18h 50m

1 stop

KIX12:00 pmOsaka Kansai Intl

Nov 4

KIX7:00 pmOsaka Kansai Intl

16h 10m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$847

Find similar

China Airlines

Mar 31

SEA1:10 amSeattle/Tacoma Intl

16h 45m

1 stop

FUK9:55 amFukuoka

Apr 5

FUK11:00 amFukuoka

24h 30m

1 stop

SEA7:30 pmSeattle/Tacoma Intl

$874

Find similar

China Airlines

Oct 16

SEA1:10 amSeattle/Tacoma Intl

16h 45m

1 stop

FUK9:55 amFukuoka

Oct 19

FUK7:10 pmFukuoka

16h 10m

1 stop

SEA7:20 pmSeattle/Tacoma Intl

$981

Find similar

EVA Air flights from Seattle to Japan

Our best EVA Air deals on Seattle to Japan flight tickets

EVA Air

Oct 18

SEA12:30 amSeattle/Tacoma Intl

26h 25m

1 stop

OKA6:55 pmOkinawa Naha

Nov 4

OKA8:10 pmOkinawa Naha

14h 20m

1 stop

SEA5:30 pmSeattle/Tacoma Intl

$1,011

Find similar

EVA Air

Nov 17

SEA12:10 amSeattle/Tacoma Intl

26h 45m

1 stop

FUK7:55 pmFukuoka

Dec 5

FUK12:15 pmFukuoka

22h 55m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$1,044

Find similar

EVA Air

Oct 15

SEA1:30 amSeattle/Tacoma Intl

16h 30m

1 stop

UKB10:00 amKobe

Oct 31

UKB11:00 amKobe

24h 10m

1 stop

SEA7:10 pmSeattle/Tacoma Intl

$1,084

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Mon 11/3

12:10 am-10:40 am

1 stop17h 30m

Okinawa Naha

Tue 11/18

12:00 pm-1:55 pm

1 stop18h 55m

$548

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Sun 10/26

12:10 am-10:40 am

1 stop18h 30m

Okinawa Naha

Thu 11/27

12:00 pm-1:55 pm

1 stop18h 55m

$550

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 2/7

3:45 pm-8:35 am

1 stop23h 50m

Osaka Kansai Intl

Sat 2/14

3:45 pm-1:20 pm

1 stop14h 35m

$615

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 2/7

3:45 pm-8:35 am

1 stop23h 50m

Osaka Kansai Intl

Sat 2/14

7:00 pm-9:01 pm

2 stops19h 01m

$624

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 1/27

6:00 am-4:40 pm

1 stop17h 40m

Tokyo Narita

Tue 2/3

7:20 pm-2:34 pm

1 stop12h 14m

$641

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Mon 11/17

6:20 am-4:40 pm

1 stop17h 20m

Tokyo Narita

Tue 11/25

6:10 pm-9:50 am

Nonstop8h 40m

$643

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Mon 1/12

12:20 pm-4:00 pm

Nonstop10h 40m

Tokyo Narita

Tue 1/20

6:30 pm-10:40 am

Nonstop9h 10m

$646

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Sun 11/16

10:15 am-2:05 pm

Nonstop10h 50m

Tokyo Haneda

Fri 12/12

4:50 pm-8:45 am

Nonstop8h 55m

$672

SeattleNagoya

SEA - NGO

SEANGO

Seattle/Tacoma Intl

Wed 1/7

11:25 am-8:40 pm

1 stop16h 15m

Nagoya Chubu Centrair Intl

Wed 1/21

9:00 am-1:20 pm

1 stop21h 20m

$686

SeattleNagoya

SEA - NGO

SEANGO

Seattle/Tacoma Intl

Tue 11/18

12:10 pm-7:45 pm

1 stop14h 35m

Nagoya Chubu Centrair Intl

Wed 12/3

8:20 am-9:50 am

1 stop18h 30m

$843

Flights are sorted by cheapest round-trip flights first.

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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

Other information

What is the cheapest month to fly to Japan?

The month of September is, on average, the cheapest month to fly to Japan from Seattle, with most prices found around $778. If you aren’t able to travel to Japan during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $813.

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 $876. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to Japan on a Friday will generally be more expensive and average around $1,040. 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 $885 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 $1,013 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 $1,000 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 $860 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 28% 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	$411
Fastest flight time	10h 10m
Direct flights	Every day
Airports in Japan	2 airports

The best one-way flight to Japan from Seattle in the past 72 hours is $411. The best round-trip flight deal from Seattle to Japan found on momondo in the last 72 hours is $690.

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

Direct flights go from Seattle to Japan every day.

There are 2 airports near Japan: Tokyo Narita (NRT), Tokyo Haneda (HND)

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 15 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of October 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 72.63% of all bookings. The subsequent popular models are Airbus A330-200 at 19.96%, Boeing 787 Dreamliner at 3.18%, and Airbus A330 at 2.10%.

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
Delta	PriceFrom $117	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $359	Free Cancellation	Rating 7.8 2,779 reviews	Search Hawaiian Airlines flights
Asiana Airlines	PriceFrom $550	Free Cancellation	Rating 8.2 486 reviews	Search Asiana Airlines flights
Air Canada	PriceFrom $581	Free Cancellation	Rating 7.1 10,298 reviews	Search Air Canada flights
ANA	PriceFrom $665	Free Cancellation	Rating 8.4 984 reviews	Search ANA flights
United Airlines	PriceFrom $697	Free Cancellation	Rating 7.4 8,977 reviews	Search United Airlines flights
Japan Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 1,578 reviews	Search Japan Airlines flights
Alaska Airlines	PriceFrom $700	Free Cancellation	Rating 8.0 11,082 reviews	Search Alaska Airlines flights
Korean Air	PriceFrom $702	Free Cancellation	Rating 8.4 1,149 reviews	Search Korean Air flights
Philippine Airlines	PriceFrom $705	Free Cancellation	Rating 7.3 920 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.

An easier way to manage your Japan trip

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Find better results for your trip to Japan

Popular cities in Japan

Flights to Tokyofrom $343

Flights to Osakafrom $534

Flights to Okinawafrom $547

Flights to Fukuokafrom $535

Flights to Nagoyafrom $564

Flights to Hiroshimafrom $661

Flights to Ishigakifrom $745

Flights to Kagoshimafrom $745

Flights to Hakodatefrom $908

Flights to Nagasakifrom $745

Flights to Miyakojimafrom $2,105

Flights to Sendaifrom $809

Cheap flights from Seattle to Japan from $328

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 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Cheap round-trip flights

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China Airlines flights from Seattle to Japan

Our best China Airlines deals on Seattle to Japan flight tickets

EVA Air flights from Seattle to Japan

Our best EVA Air deals on Seattle to Japan flight tickets

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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

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 28% 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?

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

What airlines fly to Japan?

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 October 2025. The most frequent departure time is 1:00PM, 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 October 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