How often are flights from Seattle to Japan delayed?

Historically, on average around 18% 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 121 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 8% of their flights experiencing any sort of delay.

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 53% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 13 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 in the early afternoon tend to experience fewer delays. Flights at night 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.

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

77 flights are operational weekly from Seattle to Japan as of February 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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

Asiana Airlines, Japan Airlines, and Philippine Airlines are the most popular carriers operating from Seattle/Tacoma Intl 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 February 2026. The most frequent departure time is 12:00PM, with 94% of daily flights leaving in the afternoon.

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 13 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of February 2026.

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.

$313 Cheap Flights from Seattle to Japan in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Japan

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:55 am - 11:20 am

SEA

NRT

18h 25m

1 stop

7:25 pm - 2:55 pm

NRT

SEA

35h 30m

1 stop

$614Asiana Airlines

Tue, Apr 28 - Wed, May 13

9:55 am - 4:20 pm

SEA

NRT

13h 25m

1 stop

11:40 am - 3:01 pm

NRT

SEA

19h 21m

2 stops

$615Multiple Airlines

Wed, Feb 18 - Thu, Mar 12

3:45 pm - 7:15 pm

SEA

HND

10h 30mnonstop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$616ANA

Sat, Feb 21 - Sat, Mar 7

12:10 am - 11:20 am

SEA

NRT

18h 10m

1 stop

1:20 pm - 2:55 pm

NRT

SEA

17h 35m

1 stop

$616Asiana Airlines

Sun, Mar 1 - Mon, Apr 20

3:45 pm - 7:15 pm

SEA

HND

10h 30mnonstop

9:15 pm - 1:20 pm

HND

SEA

9h 05mnonstop

$618ANA

Thu, Feb 19 - Sat, Mar 7

8:41 am - 3:50 pm

SEA

NRT

15h 09m

1 stop

6:15 pm - 4:17 pm

NRT

SEA

14h 02m

1 stop

$618Japan Airlines

Tue, Apr 28 - Wed, May 6

1:15 pm - 3:40 pm

SEA

ITM

34h 25m

1 stop

4:55 pm - 10:35 am

ITM

SEA

33h 40m

1 stop

$642Japan Airlines

Tue, Apr 21 - Wed, Apr 29

7:20 pm - 4:25 pm

SEA

KIX

29h 05m

1 stop

6:00 pm - 10:20 pm

KIX

SEA

20h 20m

1 stop

$646Air Canada

Sat, May 2 - Thu, May 7

12:50 pm - 10:55 am

SEA

UKB

30h 05m

1 stop

11:55 am - 10:40 am

UKB

SEA

14h 45m

1 stop

$665Korean Air

Wed, May 6 - Fri, May 15

12:50 pm - 10:55 am

SEA

UKB

30h 05m

1 stop

6:55 pm - 2:51 pm

UKB

SEA

35h 56m

2 stops

$676Korean Air

Wed, May 6 - Tue, May 12

United Airlines flights from Seattle to Japan

Our best United Airlines deals on Seattle to Japan flight tickets

United Airlines

Feb 19

SEA5:05 amSeattle/Tacoma Intl

16h 45m

1 stop

HND2:50 pmTokyo Haneda

Mar 7

HND9:15 pmTokyo Haneda

9h 05m

SEA1:20 pmSeattle/Tacoma Intl

$631

United Airlines

Feb 19

SEA8:30 amSeattle/Tacoma Intl

19h 40m

1 stop

HND9:10 pmTokyo Haneda

Mar 6

HND12:50 amTokyo Haneda

15h 26m

1 stop

SEA11:16 pmSeattle/Tacoma Intl

$636

United Airlines

Feb 19

SEA5:05 amSeattle/Tacoma Intl

16h 55m

1 stop

NRT3:00 pmTokyo Narita

Mar 7

NRT5:00 pmTokyo Narita

20h 58m

1 stop

SEA8:58 pmSeattle/Tacoma Intl

$638

Asiana Airlines flights from Seattle to Japan

Our best Asiana Airlines deals on Seattle to Japan flight tickets

Asiana Airlines

Jul 12

SEA12:55 amSeattle/Tacoma Intl

25h 30m

1 stop

NRT6:25 pmTokyo Narita

Jul 20

NRT9:00 amTokyo Narita

22h 25m

1 stop

SEA3:25 pmSeattle/Tacoma Intl

$614

Asiana Airlines

Apr 17

SEA12:55 amSeattle/Tacoma Intl

25h 30m

1 stop

NRT6:25 pmTokyo Narita

Apr 26

NRT1:20 pmTokyo Narita

17h 35m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$617

Asiana Airlines

Apr 12

SEA12:55 amSeattle/Tacoma Intl

25h 35m

1 stop

KIX6:30 pmOsaka Kansai Intl

Apr 27

KIX10:40 amOsaka Kansai Intl

20h 15m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$618

Fly from

Fly to

Route

Depart

Return

Price

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 4/28

12:55 am-11:20 am

1 stop18h 25m

Tokyo Narita

Wed 5/13

7:25 pm-2:55 pm

1 stop35h 30m

$614

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Wed 2/18

9:55 am-4:20 pm

1 stop13h 25m

Tokyo Narita

Thu 3/12

11:40 am-3:01 pm

2 stops19h 21m

$615

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Sat 2/21

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Sat 3/7

9:15 pm-1:20 pm

Nonstop9h 05m

$616

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Sun 3/1

12:10 am-11:20 am

1 stop18h 10m

Tokyo Narita

Mon 4/20

1:20 pm-2:55 pm

1 stop17h 35m

$616

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Thu 2/19

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Sat 3/7

9:15 pm-1:20 pm

Nonstop9h 05m

$618

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 4/28

8:41 am-3:50 pm

1 stop15h 09m

Tokyo Narita

Wed 5/6

6:15 pm-4:17 pm

1 stop14h 02m

$618

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 4/21

1:15 pm-3:40 pm

1 stop34h 25m

Osaka Itami

Wed 4/29

4:55 pm-10:35 am

1 stop33h 40m

$642

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 5/2

7:20 pm-4:25 pm

1 stop29h 05m

Osaka Kansai Intl

Thu 5/7

6:00 pm-10:20 pm

1 stop20h 20m

$646

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Wed 5/6

12:50 pm-10:55 am

1 stop30h 05m

Kobe

Fri 5/15

11:55 am-10:40 am

1 stop14h 45m

$665

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Wed 5/6

12:50 pm-10:55 am

1 stop30h 05m

Kobe

Tue 5/12

6:55 pm-2:51 pm

2 stops35h 56m

$676

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 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 $694. If you aren’t able to travel to Japan during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $742.

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 $832. 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 $967. 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 $842 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 $993 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 $922 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 $810 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 2% 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	$385
Fastest flight time	10h 05m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sun
Airports in Japan	202 airports

The best one-way flight to Japan from Seattle in the past 72 hours is $385. The best round-trip flight deal from Seattle to Japan found on momondo in the last 72 hours is $659.

The fastest flight from Seattle to Japan takes 10h 05m

Direct flights go from Seattle to Japan on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. The only airline offering direct flights is Delta.

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 13 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of February 2026.
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 78.99% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 7.26%, Airbus A350-900 at 6.73%, and Airbus A330-200 at 4.28%.

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 2,831 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $370	Free Cancellation	Rating 8.0 11,833 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $450	Free Cancellation	Rating 7.1 10,684 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $547	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
United Airlines	PriceFrom $596	Free Cancellation	Rating 7.4 9,235 reviews	Search United Airlines flights
Korean Air	PriceFrom $602	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights
ANA	PriceFrom $615	Free Cancellation	Rating 8.4 1,084 reviews	Search ANA flights
Japan Airlines	PriceFrom $626	Free Cancellation	Rating 8.3 1,697 reviews	Search Japan Airlines flights
Delta	PriceFrom $644	Free Cancellation	Rating 7.9 8,138 reviews	Search Delta flights
Philippine Airlines	PriceFrom $732	Free Cancellation	Rating 7.3 955 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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 3/5

Thu 3/12

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Japan

Popular cities in Japan

Flights to Tokyofrom $424

Flights to Osakafrom $517

Flights to Okinawafrom $532

Flights to Fukuokafrom $526

Flights to Nagoyafrom $530

Flights to Hiroshimafrom $618

Flights to Kagoshimafrom $749

Flights to Ishigakifrom $1,014

Flights to Hakodatefrom $1,131

Flights to Sendaifrom $756

Flights to Miyakojimafrom $1,439

Flights to Nagasakifrom $780

Cheap flights from Seattle to Japan from $313

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 3/11. 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

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Japan

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Seattle to Japan

Our best United Airlines 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

momondo Fare Finder

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

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?

The month of January is, on average, the cheapest month to fly to Japan from Seattle, with most prices found around $694. If you aren’t able to travel to Japan during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $742.

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 2% 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?

Asiana Airlines, Japan Airlines, and Philippine Airlines 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 18% 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 121 minutes.

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

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night 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 8% 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 February 2026. The most frequent departure time is 12:00PM, with 94% 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 February 2026. 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