What are the cheapest airlines to fly from Seattle to Japan one-way?

The cheapest airlines for a one-way flight from Seattle to Japan are Asiana Airlines ($407), ANA ($437), and Air Canada ($437).

What are the most popular routes from Seattle to Japan?

When deciding which route to take from Seattle to Japan consider Seattle/Tacoma Intl - Tokyo Narita, Seattle/Tacoma Intl - Tokyo Haneda or Seattle/Tacoma Intl - Osaka Kansai Intl as they are the most popular.

What are the most popular airlines that fly from Seattle to Japan?

EVA Air, China Airlines and Delta are the most popular airlines when flying from Seattle to Japan.

How far in advance should I book a flight from Seattle to Japan?

Users have found that booking a flight from Seattle to Japan at least 37 days early can save you up to 9% on average compared to booking a flight this week. If booking 37 days before your flight isn’t an option for you, users have found flights from Seattle to Japan for as little as $966 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $966 for flights departing within the next 3 days.

What is the cheapest month to fly from Seattle to Japan?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Japan. Flights to Japan from Seattle in February are about $1,116 on average during February, but can be found for as low as $697.

What airport do you fly from for flights from Seattle to Japan?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Japan. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Can I find deals for flights from Seattle to Japan that include hotel bookings?

Yes. In addition to deals on Seattle to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Japan?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Japan.

Can I find deals for business class flights from Seattle to Japan?

Yes. Cheapflights offers flight deals from Seattle to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$752+ Flights from Seattle to Japan - Compare & Save Big

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Cheap flight deals from Seattle to Japan

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$701 (oojo)
One-way from	$407 (FlightHub)
Popular in	December
Cheapest in	February
Average price	$1,058
Good round-trip deal	$821 or less
Good one-way deal	$428 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-Tokyo (TYO) flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tokyo (TYO) flights.

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From Seattle/Tacoma Intl to Japan

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One-way flight from Seattle/Tacoma Intl to Japan

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($82 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Japan.

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Price to beat on a one-way flight from Seattle/Tacoma Intl to Japan.

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Find flight deals from Seattle to Japan

Cheapest flights from Seattle to Japan
Explore the most affordable flight options available from Seattle to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Wed 8/272:30 pmSEA - OKA

1 stop28h 45mAsiana Airlines

Thu 9/1812:15 pmOKA - SEA

1 stop16h 15mAsiana Airlines

Deal found 4/30

$687

Wed 10/222:15 pmSEA - NGO

1 stop35h 35mAsiana Airlines

Wed 11/56:20 pmNGO - SEA

1 stop35h 15mAsiana Airlines

Deal found 4/30

$701

Wed 10/222:15 pmSEA - CTS

1 stop29h 35mAsiana Airlines

Sun 11/21:00 pmCTS - SEA

1 stop16h 35mAsiana Airlines

Deal found 4/30

$716

Wed 10/111:35 pmSEA - FUK

1 stop23h 00mPhilippine Airlines

Wed 10/153:35 pmFUK - SEA

1 stop19h 40mPhilippine Airlines

Deal found 4/29

$722

Tue 10/212:15 pmSEA - KIX

1 stop27h 35mAsiana Airlines

Wed 10/2911:10 amKIX - SEA

1 stop17h 25mAsiana Airlines

Deal found 4/29

$723

Mon 9/155:30 amSEA - KIX

1 stop18h 55mAir Canada

Mon 9/296:05 pmKIX - SEA

1 stop20h 11mAir Canada

Deal found 4/30

$750

Sun 11/211:55 pmSEA - KIX

1 stop26h 15mPhilippine Airlines

Sun 11/169:55 amKIX - SEA

1 stop26h 40mPhilippine Airlines

Deal found 4/29

$754

Mon 10/202:15 pmSEA - FUK

1 stop31h 35mAsiana Airlines

Fri 11/711:30 amFUK - SEA

1 stop18h 05mAsiana Airlines

Deal found 4/29

$755

Tue 11/118:20 pmSEA - ITM

2 stops29h 35mAir Canada

Thu 11/202:05 pmITM - SEA

2 stops21h 21mAir Canada

Deal found 4/30

$757

Mon 9/812:50 pmSEA - UKB

1 stop29h 10mKorean Air

Tue 9/2311:00 amUKB - SEA

1 stop15h 40mKorean Air

Deal found 4/29

$779

Mon 10/2012:50 pmSEA - FUK

1 stop15h 15mKorean Air

Fri 11/71:45 pmFUK - SEA

1 stop12h 15mKorean Air

Deal found 4/30

$797

Tue 9/24:30 pmSEA - HND

Nonstop10h 30mANA

Tue 9/99:15 pmHND - SEA

Nonstop9h 10mANA

Deal found 4/29

$804

Best flights from Seattle to Japan
Discover carefully curated flight deals from Seattle to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Wed 10/222:15 pmSEA - NGO

1 stop35h 35mAsiana Airlines

Wed 11/56:20 pmNGO - SEA

1 stop35h 15mAsiana Airlines

Deal found 4/30

$701

Tue 10/214:30 pmSEA - ITM

1 stop22h 55mANA

Wed 11/56:00 pmITM - SEA

1 stop12h 20mANA

Deal found 4/30

$815

Fri 5/911:35 pmSEA - HND

1 stop22h 05mPhilippine Airlines

Tue 5/131:55 amHND - SEA

1 stop33h 20mPhilippine Airlines

Deal found 4/29

$822

Tue 7/297:34 pmSEA - HND

1 stop16h 56mUnited Airlines

Fri 9/199:15 pmHND - SEA

Nonstop9h 10mUnited Airlines

Deal found 4/29

$826

Tue 5/273:20 pmSEA - NRT

2 stops29h 15mMultiple Airlines

Tue 6/33:50 pmNRT - SEA

1 stop15h 55mMultiple Airlines

Deal found 4/29

$828

Mon 6/28:41 amSEA - NRT

1 stop15h 09mJapan Airlines

Thu 6/126:55 pmNRT - SEA

1 stop12h 03mJapan Airlines

Deal found 4/29

$917

Mon 7/281:40 pmSEA - NRT

Nonstop10h 20mAlaska Airlines

Fri 8/156:25 pmNRT - SEA

Nonstop9h 15mAlaska Airlines

Deal found 4/29

$947

Sun 7/2011:50 amSEA - HND

Nonstop10h 25mDelta

Wed 8/134:05 pmHND - SEA

Nonstop9h 40mDelta

Deal found 4/29

$947

Thu 5/1512:50 pmSEA - NRT

1 stop16h 15mKorean Air

Mon 6/28:55 pmNRT - SEA

1 stop29h 55mKorean Air

Deal found 4/30

$950

Wed 5/281:30 pmSEA - NRT

Nonstop10h 05mAmerican Airlines

Wed 6/115:20 pmNRT - SEA

1 stop20h 14mAmerican Airlines

Deal found 4/30

$966

Tue 5/61:15 amSEA - UKB

1 stop16h 45mSTARLUX Airlines

Thu 5/1511:00 amUKB - SEA

1 stop21h 10mSTARLUX Airlines

Deal found 4/30

$967

Thu 5/151:45 pmSEA - NRT

Nonstop10h 15mHawaiian Airlines

Wed 5/286:25 pmNRT - SEA

Nonstop9h 05mHawaiian Airlines

Deal found 4/30

$977

Last-minute flights from Seattle to Japan
Discover last-minute flight deals from Seattle to Japan. Data last updated May 1, 2025 and is based on user searches.

Wed 4/307:15 amSEA - NRT

1 stop15h 25mANA

Sat 5/105:00 pmNRT - SEA

1 stop20h 31mANA

Deal found 4/29

$965

Fri 5/211:35 pmSEA - NRT

1 stop21h 35mPhilippine Airlines

Fri 5/92:25 pmNRT - SEA

1 stop20h 50mPhilippine Airlines

Deal found 4/29

$844

Mon 5/54:30 pmSEA - HND

Nonstop10h 30mANA

Wed 5/73:50 pmHND - SEA

1 stop13h 53mANA

Deal found 4/29

$979

Tue 5/66:00 amSEA - NRT

2 stops46h 00mMultiple Airlines

Tue 5/139:30 pmNRT - SEA

1 stop26h 35mMultiple Airlines

Deal found 4/30

$945

Tue 5/61:15 amSEA - UKB

1 stop16h 45mSTARLUX Airlines

Thu 5/1511:00 amUKB - SEA

1 stop21h 10mSTARLUX Airlines

Deal found 4/30

$967

Tue 5/61:15 amSEA - KIX

1 stop19h 00mSTARLUX Airlines

Thu 5/153:10 pmKIX - SEA

1 stop17h 00mSTARLUX Airlines

Deal found 4/30

$992

Tue 5/61:10 amSEA - KIX

1 stop18h 50mChina Airlines

Tue 5/132:00 pmKIX - SEA

1 stop21h 30mChina Airlines

Deal found 4/30

$1,008

Wed 5/711:35 pmSEA - NRT

1 stop28h 55mPhilippine Airlines

Sun 5/189:30 amNRT - SEA

1 stop25h 45mPhilippine Airlines

Deal found 4/30

$884

Thu 5/82:15 pmSEA - NRT

1 stop36h 00mAsiana Airlines

Tue 5/209:00 amNRT - SEA

1 stop19h 30mAsiana Airlines

Deal found 4/30

$982

Thu 5/82:15 pmSEA - HND

1 stop17h 15mAsiana Airlines

Mon 5/191:30 amHND - SEA

1 stop27h 00mAsiana Airlines

Deal found 4/29

$987

Thu 5/81:30 pmSEA - NRT

Nonstop10h 05mJapan Airlines

Tue 5/205:45 pmNRT - SEA

Nonstop8h 40mJapan Airlines

Deal found 4/30

$997

Thu 5/812:50 pmSEA - NRT

1 stop34h 35mKorean Air

Thu 5/158:55 pmNRT - SEA

1 stop29h 45mKorean Air

Deal found 4/30

$1,008

One-way flights from Seattle to Japan
Search for one-way flight options from Seattle to Japan. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Wed 7/92:30 pmSEA - KIX

1 stop27h 10mAsiana Airlines

Deal found 4/29

$407

Mon 5/54:30 pmSEA - HND

Nonstop10h 30mANA

Deal found 4/29

$437

Tue 7/157:15 pmSEA - KIX

1 stop29h 10mAir Canada

Deal found 4/30

$437

Fri 5/912:21 pmSEA - NRT

2 stops58h 29mMultiple Airlines

Deal found 4/29

$440

Tue 5/67:00 amSEA - NRT

1 stop15h 40mANA

Deal found 4/30

$441

Sun 7/202:30 pmSEA - NRT

1 stop28h 50mAsiana Airlines

Deal found 4/29

$444

Wed 7/92:30 pmSEA - HND

1 stop17h 00mAsiana Airlines

Deal found 4/30

$444

Sun 7/273:11 pmSEA - KIX

2 stops35h 34mMultiple Airlines

Deal found 4/29

$463

Tue 7/291:30 pmSEA - NRT

Nonstop10h 00mJapan Airlines

Deal found 4/30

$464

Sun 7/63:11 pmSEA - HND

2 stops36h 14mMultiple Airlines

Deal found 4/29

$468

Tue 7/291:30 pmSEA - ITM

1 stop14h 20mJapan Airlines

Deal found 4/29

$469

Tue 7/151:20 pmSEA - NRT

1 stop15h 45mKorean Air

Deal found 4/30

$476

Cheapflights Fare Finder

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

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Wed 7/16

2:30 pm-11:30 pm

1 stop17h 00m

Tokyo Haneda

Tue 8/26

1:30 am-12:45 pm

1 stop27h 15m

$813

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 10/21

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Wed 11/5

6:00 pm-1:20 pm

1 stop12h 20m

$815

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 9/1

7:15 pm-6:55 pm

2 stops31h 40m

Osaka Itami

Tue 9/16

2:05 pm-1:05 pm

2 stops15h 00m

$817

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Fri 5/9

11:35 pm-1:40 pm

1 stop22h 05m

Tokyo Haneda

Tue 5/13

1:55 am-7:15 pm

1 stop33h 20m

$822

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Tue 7/29

7:34 pm-4:30 am

1 stop16h 56m

Tokyo Haneda

Fri 9/19

9:15 pm-2:25 pm

Nonstop9h 10m

$826

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 10/7

6:45 am-5:05 pm

2 stops42h 20m

Osaka Itami

Wed 10/22

12:00 pm-2:25 pm

1 stop18h 25m

$837

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 9/9

8:37 am-7:35 am

2 stops30h 58m

Osaka Itami

Tue 9/16

10:55 am-10:25 am

2 stops15h 30m

$838

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Sun 5/11

8:22 pm-8:00 pm

2 stops31h 38m

Tokyo Narita

Tue 5/20

3:50 pm-11:23 pm

1 stop23h 33m

$844

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Mon 10/13

7:00 am-5:05 pm

2 stops18h 05m

Osaka Itami

Wed 10/22

10:00 am-2:19 pm

2 stops20h 19m

$847

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Tue 7/29

7:00 am-1:55 pm

1 stop14h 55m

Tokyo Haneda

Fri 9/19

7:15 am-3:14 pm

2 stops23h 59m

$849

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results

...

Best time to book a flight from Seattle to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Japan

What is the cheapest month to book a flight from Seattle to Japan?

Currently, February is the cheapest month in which you can book a flight from Seattle to Japan (average of $871). Flying from Seattle to Japan in December is currently the most expensive (average of $1,656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to JP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Japan as you normally would.

Rainfall in Japan by month

In terms of precipitation, rainfall in Japan ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Japan when rainfall is around 2.0 in.

Temperature in Japan by month

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Japan

Get a feel of what it's like to fly with STARLUX Airlines, EVA Air and Korean Air from Seattle to Japan by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

STARLUX Airlines

9.1

Wonderful

161 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

EVA Air

8.4

Very good

1,186 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Korean Air

8.4

Very good

1,068 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Japan Airlines

8.3

Very good

1,464 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

China Airlines

8.3

Very good

732 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Related info for your journey

What airport do you fly from for flights from Seattle to Japan?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Japan. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
What are the cheapest airlines to fly from Seattle to Japan one-way?
The cheapest airlines for a one-way flight from Seattle to Japan are Asiana Airlines ($407), ANA ($437), and Air Canada ($437).
What are the most popular routes from Seattle to Japan?
When deciding which route to take from Seattle to Japan consider Seattle/Tacoma Intl - Tokyo Narita, Seattle/Tacoma Intl - Tokyo Haneda or Seattle/Tacoma Intl - Osaka Kansai Intl as they are the most popular.
Can I find deals for flights from Seattle to Japan that include hotel bookings?
Yes. In addition to deals on Seattle to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Japan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Japan.
Can I find deals for business class flights from Seattle to Japan?
Yes. Cheapflights offers flight deals from Seattle to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Japan?
Currently, February is the cheapest month in which you can book a flight from Seattle to Japan (average of $871). Flying from Seattle to Japan in December is currently the most expensive (average of $1,656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Seattle to Japan

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$117	Average$1,313	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$359	Average$1,117	FlexibilityNo cancel fee	On-time85%
Asiana Airlines	Cheapest$648	Average$903	FlexibilityNo cancel fee	On-time76%
ANA	Cheapest$672	Average$1,084	FlexibilityNo cancel fee	On-time80%
Alaska Airlines	Cheapest$700	Average$1,041	FlexibilityNo cancel fee	On-time75%
Korean Air	Cheapest$716	Average$1,128	FlexibilityNo cancel fee	On-time81%
China Eastern	Cheapest$719	Average$756	FlexibilityNo cancel fee	On-time62%
Japan Airlines	Cheapest$720	Average$1,257	FlexibilityNo cancel fee	On-time79%
United Airlines	Cheapest$721	Average$1,165	FlexibilityNo cancel fee	On-time69%
China Airlines	Cheapest$730	Average$1,031	FlexibilityNo cancel fee	On-time70%

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$407+ Cheap flights from Seattle (SEA) to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Japan with Cheapflights

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Cheap flight deals from Seattle to Japan

Keep the following information in mind while searching for Seattle to Japan flight deals. Data was last updated May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Seattle to Japan

Cheapest flights from Seattle to JapanExplore the most affordable flight options available from Seattle to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Explore the most affordable flight options available from Seattle to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Japan

What is the cheapest month to book a flight from Seattle to Japan?

What is the cheapest time of day to fly from SEA to JP?

Find hourly flight availability from Seattle to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated May 1, 2025.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to Japan?

What are the cheapest airlines to fly from Seattle to Japan one-way?

What are the most popular routes from Seattle to Japan?

Can I find deals for flights from Seattle to Japan that include hotel bookings?

How can I find direct flights from Seattle to Japan?

Can I find deals for business class flights from Seattle to Japan?

What is the cheapest month to book a flight from Seattle to Japan?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Japan

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Seattle to Japan

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Cheapest flights from Seattle to Japan
Explore the most affordable flight options available from Seattle to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.