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.
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Asiana Airlines Logo
12:10 am - 10:40 amSEA-OKA
17h 30m1 stop
Asiana Airlines Logo
12:00 pm - 1:55 pmOKA-SEA
18h 55m1 stop
$548Asiana Airlines
Find Deal
Mon, Nov 3 - Tue, Nov 18
Asiana Airlines Logo
12:10 am - 10:40 amSEA-OKA
18h 30m1 stop
Asiana Airlines Logo
12:00 pm - 1:55 pmOKA-SEA
18h 55m1 stop
$550Asiana Airlines
Find Deal
Sun, Oct 26 - Thu, Nov 27
ANA Logo
3:45 pm - 8:35 amSEA-KIX
23h 50m1 stop
ANA Logo
3:45 pm - 1:20 pmKIX-SEA
14h 35m1 stop
$615ANA
Find Deal
Sat, Feb 7 - Sat, Feb 14
ANA Logo
3:45 pm - 8:35 amSEA-KIX
23h 50m1 stop
ANA Logo
7:00 pm - 9:01 pmKIX-SEA
19h 01m2 stops
$624ANA
Find Deal
Sat, Feb 7 - Sat, Feb 14
Japan Airlines Logo
6:00 am - 4:40 pmSEA-NRT
17h 40m1 stop
Japan Airlines Logo
7:20 pm - 2:34 pmNRT-SEA
12h 14m1 stop
$641Japan Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
Japan Airlines Logo
6:20 am - 4:40 pmSEA-NRT
17h 20m1 stop
Japan Airlines Logo
6:10 pm - 9:50 amNRT-SEA
8h 40mnonstop
$643Japan Airlines
Find Deal
Mon, Nov 17 - Tue, Nov 25
Alaska Airlines Logo
12:20 pm - 4:00 pmSEA-NRT
10h 40mnonstop
Alaska Airlines Logo
6:30 pm - 10:40 amNRT-SEA
9h 10mnonstop
$646Alaska Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 20
Delta Logo
10:15 am - 2:05 pmSEA-HND
10h 50mnonstop
Delta Logo
4:50 pm - 8:45 amHND-SEA
8h 55mnonstop
$672Delta
Find Deal
Sun, Nov 16 - Fri, Dec 12
Delta Logo
11:25 am - 8:40 pmSEA-NGO
16h 15m1 stop
Delta Logo
9:00 am - 1:20 pmNGO-SEA
21h 20m1 stop
$686Delta
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Wed, Jan 7 - Wed, Jan 21
Alaska Airlines Logo
12:10 pm - 7:45 pmSEA-NGO
14h 35m1 stop
Alaska Airlines Logo
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
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
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

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
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
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

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Seattle to Japan that are best for you.

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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See travel insights to Japan from

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?

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)
  • 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?

  • 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?

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

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1 adult
Thu 11/13
Thu 11/20

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