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Cheap flights from Seattle to Japan from $307

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 12/2. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
Alaska Airlines Logo
8:45 pm - 10:17 pmKIX-SEA
18h 32m1 stop
$378Alaska Airlines
Find Deal
Mon, Jan 19 - Mon, Jan 26
Alaska Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
Alaska Airlines Logo
8:45 pm - 11:46 pmKIX-SEA
20h 01m1 stop
$382Alaska Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
Alaska Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
Alaska Airlines Logo
8:45 pm - 5:19 amKIX-SEA
25h 34m1 stop
$395Alaska Airlines
Find Deal
Mon, Jan 19 - Mon, Jan 26
ANA Logo
3:45 pm - 7:15 pmSEA-HND
10h 30mnonstop
ANA Logo
9:15 pm - 1:20 pmHND-SEA
9h 05mnonstop
$611ANA
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Tue, Jan 20 - Tue, Jan 27
ANA Logo
7:15 am - 3:00 pmSEA-NRT
14h 45m1 stop
ANA Logo
5:00 pm - 9:01 pmNRT-SEA
21h 01m1 stop
$612ANA
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Thu, Feb 19 - Sat, Feb 28
Japan Airlines Logo
12:30 pm - 3:40 pmSEA-NRT
10h 10mnonstop
Japan Airlines Logo
7:20 pm - 2:34 pmNRT-SEA
12h 14m1 stop
$615Japan Airlines
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Tue, Jan 27 - Wed, Feb 11
Japan Airlines Logo
12:30 pm - 3:40 pmSEA-NRT
10h 10mnonstop
Japan Airlines Logo
7:20 pm - 8:58 amNRT-SEA
30h 38m1 stop
$616Japan Airlines
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Tue, Jan 13 - Fri, Jan 30
Hawaiian Airlines Logo
12:05 pm - 4:00 pmSEA-NRT
10h 55mnonstop
Hawaiian Airlines Logo
6:30 pm - 10:50 amNRT-SEA
9h 20mnonstop
$623Hawaiian Airlines
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Thu, Nov 27 - Sat, Dec 13
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
$627Asiana Airlines
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Sun, Nov 30 - Mon, Dec 8
Asiana Airlines Logo
12:10 am - 2:40 pmSEA-FUK
22h 30m1 stop
Asiana Airlines Logo
3:50 pm - 2:55 pmFUK-SEA
15h 05m1 stop
$648Asiana Airlines
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Sat, Mar 21 - Sat, Mar 28

China Airlines flights from Seattle to Japan

Our best China Airlines deals on Seattle to Japan flight tickets
China Airlines
Mar 24
SEA1:10 amSeattle/Tacoma Intl
20h 05m
1 stop
CTS1:15 pmSapporo Chitose
Mar 31
CTS3:00 pmSapporo Chitose
20h 30m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
$815
Find similar
China Airlines
Nov 16
SEA12:10 amSeattle/Tacoma Intl
16h 50m
1 stop
FUK10:00 amFukuoka
Nov 19
FUK11:00 amFukuoka
24h 57m
2 stops
SEA6:57 pmSeattle/Tacoma Intl
$898
Find similar
China Airlines
Nov 23
SEA12:10 amSeattle/Tacoma Intl
20h 10m
1 stop
KIX1:20 pmOsaka Kansai Intl
Nov 25
KIX7:00 pmOsaka Kansai Intl
16h 10m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$917
Find similar

Philippine Airlines flights from Seattle to Japan

Our best Philippine Airlines deals on Seattle to Japan flight tickets
Philippine Airlines
Nov 23
SEA9:30 pmSeattle/Tacoma Intl
33h 50m
1 stop
HND12:20 amTokyo Haneda
Dec 3
HND3:20 pmTokyo Haneda
20h 20m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
$681
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Philippine Airlines
Nov 23
SEA9:30 pmSeattle/Tacoma Intl
33h 50m
1 stop
HND12:20 amTokyo Haneda
Dec 11
HND3:20 pmTokyo Haneda
20h 20m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
$682
Find similar
Philippine Airlines
Nov 23
SEA9:30 pmSeattle/Tacoma Intl
33h 50m
1 stop
HND12:20 amTokyo Haneda
Dec 11
HND3:20 pmTokyo Haneda
20h 20m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
$685
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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 November 13, 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

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 1/19

7:00 am-6:45 pm

1 stop18h 45m

Osaka Kansai Intl

Mon 1/26

8:45 pm-10:17 pm

1 stop18h 32m

$378

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 11/28

7:00 am-6:45 pm

1 stop18h 45m

Osaka Kansai Intl

Fri 12/5

8:45 pm-11:46 pm

1 stop20h 01m

$382

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 1/19

7:00 am-6:45 pm

1 stop18h 45m

Osaka Kansai Intl

Mon 1/26

8:45 pm-5:19 am

1 stop25h 34m

$395

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Tue 1/20

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Tue 1/27

9:15 pm-1:20 pm

Nonstop9h 05m

$611

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Thu 2/19

7:15 am-3:00 pm

1 stop14h 45m

Tokyo Narita

Sat 2/28

5:00 pm-9:01 pm

1 stop21h 01m

$612

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 1/27

12:30 pm-3:40 pm

Nonstop10h 10m

Tokyo Narita

Wed 2/11

7:20 pm-2:34 pm

1 stop12h 14m

$615

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 1/13

12:30 pm-3:40 pm

Nonstop10h 10m

Tokyo Narita

Fri 1/30

7:20 pm-8:58 am

1 stop30h 38m

$616

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Thu 11/27

12:05 pm-4:00 pm

Nonstop10h 55m

Tokyo Narita

Sat 12/13

6:30 pm-10:50 am

Nonstop9h 20m

$623

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Sun 11/30

12:10 am-10:40 am

1 stop17h 30m

Okinawa Naha

Mon 12/8

12:00 pm-1:55 pm

1 stop18h 55m

$627

SeattleFukuoka

SEA - FUK

SEAFUK

Seattle/Tacoma Intl

Sat 3/21

12:10 am-2:40 pm

1 stop22h 30m

Fukuoka

Sat 3/28

3:50 pm-2:55 pm

1 stop15h 05m

$648

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 $775. 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 $807.

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 $860. 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 $1,015. 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 $872 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 $1,006 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 $977 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 $834 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 15% 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

$356

Fastest flight time

10h 05m

Direct flights

Every day

Airports in Japan

2 airports
The best one-way flight to Japan from Seattle in the past 72 hours is $356. The best round-trip flight deal from Seattle to Japan found on momondo in the last 72 hours is $675.
The fastest flight from Seattle to Japan takes 10h 05m
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?

  • 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
8,007 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $359Free CancellationRating
7.8
2,809 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $470Free CancellationRating
7.1
10,449 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $547Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
ANAPriceFrom $619Free CancellationRating
8.4
1,004 reviews
Search ANA flights
United AirlinesPriceFrom $677Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $684Free CancellationRating
8.3
1,613 reviews
Search Japan Airlines flights
Alaska AirlinesPriceFrom $697Free CancellationRating
8.0
11,288 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $702Free CancellationRating
8.4
1,163 reviews
Search Korean Air flights
China AirlinesPriceFrom $730Free CancellationRating
8.3
778 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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