Cheap flights from Washington to Japan from $400

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Japan departing on 8/6. 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.
Cathay Pacific Logo
12:25 pm - 10:40 am
SEA
-
OKA
30h 15m
1 stop
Cathay Pacific Logo
8:25 pm - 10:20 am
OKA
-
SEA
29h 55m
1 stop
$835Cathay Pacific
Mon, Aug 31 - Tue, Sep 8
Cathay Pacific Logo
12:25 pm - 6:40 am
SEA
-
KIX
26h 15m
1 stop
Cathay Pacific Logo
9:05 am - 10:20 am
KIX
-
SEA
17h 15m
1 stop
$869Cathay Pacific
Tue, Sep 1 - Thu, Sep 10
Hainan Airlines Logo
11:00 am - 12:45 pm
SEA
-
KIX
33h 45m
1 stop
Hainan Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
$876Hainan Airlines
Sat, Sep 19 - Mon, Oct 19
Multiple Airlines Logo
5:40 am - 2:55 pm
SEA
-
NRT
17h 15m
1 stop
Multiple Airlines Logo
8:10 pm - 9:52 am
NRT
-
SEA
29h 42m
2 stops
$880Multiple Airlines
Thu, Sep 17 - Wed, Sep 30
Multiple Airlines Logo
7:20 pm - 9:15 pm
SEA
-
NRT
33h 55m
2 stops
Multiple Airlines Logo
8:10 pm - 9:52 am
NRT
-
SEA
29h 42m
2 stops
$886Multiple Airlines
Tue, Sep 1 - Wed, Sep 30
Philippine Airlines Logo
11:10 pm - 1:35 pm
SEA
-
HND
22h 25m
1 stop
Philippine Airlines Logo
2:55 pm - 8:05 pm
HND
-
SEA
21h 10m
1 stop
$892Philippine Airlines
Wed, Sep 9 - Wed, Sep 23
Hainan Airlines Logo
11:00 am - 12:45 pm
SEA
-
KIX
33h 45m
1 stop
Hainan Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
$896Hainan Airlines
Sat, Aug 29 - Mon, Sep 7
Philippine Airlines Logo
11:10 pm - 1:35 pm
SEA
-
HND
22h 25m
1 stop
Philippine Airlines Logo
2:05 am - 8:05 pm
HND
-
SEA
34h 00m
1 stop
$900Philippine Airlines
Wed, Sep 16 - Tue, Sep 29
Air Canada Logo
10:10 am - 4:25 pm
PDX
-
KIX
14h 15m
1 stop
Air Canada Logo
6:00 pm - 12:00 pm
KIX
-
PDX
34h 00m
2 stops
$953Air Canada
Wed, Sep 16 - Tue, Sep 22
Air Canada Logo
10:10 am - 4:25 pm
PDX
-
KIX
14h 15m
1 stop
Air Canada Logo
6:00 pm - 12:00 pm
KIX
-
PDX
34h 00m
2 stops
$954Air Canada
Wed, Sep 16 - Tue, Sep 22

ANA flights from State of Washington to Japan

Our best ANA deals on State of Washington to Japan flight tickets
ANA
Oct 4
SEA4:30 pmSeattle/Tacoma Intl
10h 30m
HND7:00 pmTokyo Haneda
Oct 16
HND9:15 pmTokyo Haneda
9h 10m
SEA2:25 pmSeattle/Tacoma Intl
$958
ANA
Oct 4
SEA4:30 pmSeattle/Tacoma Intl
10h 30m
HND7:00 pmTokyo Haneda
Oct 16
HND10:55 pmTokyo Haneda
31h 29m
1 stop
SEA2:24 pmSeattle/Tacoma Intl
$963
ANA
Sep 8
SEA7:20 pmSeattle/Tacoma Intl
29h 05m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 24
KIX6:00 pmOsaka Kansai Intl
16h 32m
1 stop
SEA6:32 pmSeattle/Tacoma Intl
$973

Air Canada flights from State of Washington to Japan

Our best Air Canada deals on State of Washington to Japan flight tickets
Air Canada
Sep 16
PDX10:10 amPortland
14h 15m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 22
KIX6:00 pmOsaka Kansai Intl
34h 00m
2 stops
PDX12:00 pmPortland
$953
Air Canada
Aug 10
SEA10:45 amSeattle/Tacoma Intl
12h 10m
1 stop
NRT2:55 pmTokyo Narita
Sep 9
NRT4:50 pmTokyo Narita
21h 52m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
$954
Air Canada
Sep 9
SEA10:30 amSeattle/Tacoma Intl
13h 55m
1 stop
KIX4:25 pmOsaka Kansai Intl
Sep 22
KIX6:00 pmOsaka Kansai Intl
12h 22m
1 stop
SEA2:22 pmSeattle/Tacoma Intl
$967

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 May 21, 2026.
Use the filters below to find and compare flights from Washington to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Mon 8/31

12:25 pm-10:40 am

1 stop30h 15m

Okinawa Naha

Tue 9/8

8:25 pm-10:20 am

1 stop29h 55m

$835
Quickest round-trip

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 9/1

12:25 pm-6:40 am

1 stop26h 15m

Osaka Kansai Intl

Thu 9/10

9:05 am-10:20 am

1 stop17h 15m

$869

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 9/19

11:00 am-12:45 pm

1 stop33h 45m

Osaka Kansai Intl

Mon 10/19

2:20 pm-9:00 am

1 stop34h 40m

$876

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Thu 9/17

5:40 am-2:55 pm

1 stop17h 15m

Tokyo Narita

Wed 9/30

8:10 pm-9:52 am

2 stops29h 42m

$880

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Tue 9/1

7:20 pm-9:15 pm

2 stops33h 55m

Tokyo Narita

Wed 9/30

8:10 pm-9:52 am

2 stops29h 42m

$886

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Wed 9/9

11:10 pm-1:35 pm

1 stop22h 25m

Tokyo Haneda

Wed 9/23

2:55 pm-8:05 pm

1 stop21h 10m

$892

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 8/29

11:00 am-12:45 pm

1 stop33h 45m

Osaka Kansai Intl

Mon 9/7

2:20 pm-9:00 am

1 stop34h 40m

$896

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Wed 9/16

11:10 pm-1:35 pm

1 stop22h 25m

Tokyo Haneda

Tue 9/29

2:05 am-8:05 pm

1 stop34h 00m

$900

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Wed 9/16

10:10 am-4:25 pm

1 stop14h 15m

Osaka Kansai Intl

Tue 9/22

6:00 pm-12:00 pm

2 stops34h 00m

$953

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Wed 9/16

10:10 am-4:25 pm

1 stop14h 15m

Osaka Kansai Intl

Tue 9/22

6:00 pm-12:00 pm

2 stops34h 00m

$954

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 State of Washington 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 January is, on average, the cheapest month to fly to Japan from State of Washington, with most prices found around $676. 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 $710.

What is the cheapest day to depart on your flight to Japan?

On average, the least expensive day to fly to Japan from State of Washington is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $848. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from State of Washington to Japan on a Saturday will generally be more expensive and average around $953. 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 State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $845 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 $963 per ticket.

What is the cheapest Washington to Japan flight route?

Fly from Seattle/Tacoma Intl to Tokyo Haneda for the best Washington - Japan flight prices

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

You are more likely to see cheaper flights to Japan from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $926 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from State of Washington for as low as $816 on momondo.

What cabin class options are available on State of Washington to Japan flights?

There are 4 cabin classes available to choose from on State of Washington 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 State of Washington to Japan flights?

You could potentially save up to 16% on your flight if you consider stops on a State of Washington to Japan flight.

Cheap State of Washington to Japan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Japan

Best Price Found

$460

Fastest flight time

10h 05m

Direct flights

Every day

Airports in Japan

202 airports
The best one-way flight to Japan from State of Washington in the past 72 hours is $460. The best round-trip flight deal from State of Washington to Japan found on momondo in the last 72 hours is $899.
The fastest flight from State of Washington to Japan takes 10h 05m
Direct flights go from State of Washington to Japan every day.
There are 202 airports in Japan. From State of Washington there are direct flights to Tokyo Narita (NRT), Tokyo Haneda (HND).

Frequently asked questions about flying from Washington to Japan

  • When did momondo last update prices for flights from Washington to Japan?

    Prices for flights from Washington to Japan are updated daily.

  • How many operators does momondo search for flights from Washington to Japan?

  • How old do you have to be to fly from Washington 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 Washington to Japan.

  • What documentation or ID do you need to fly to Japan?

    The travel and health documents you'll need for your trip to Japan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Japan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from State of Washington to Japan?

Best airlines flying from State of Washington to Japan

Compare and see reviews for airlines that fly from State of Washington to Japan with momondo
Airline
Rating
Free Cancellation
Price
Philippine AirlinesPriceFrom $317Free CancellationRating
7.3
998 reviews
Search Philippine Airlines flights
Alaska AirlinesPriceFrom $370Free CancellationRating
7.9
12,392 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $450Free CancellationRating
7.1
11,070 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $547Free CancellationRating
8.1
534 reviews
Search Asiana Airlines flights
Hawaiian AirlinesPriceFrom $586Free CancellationRating
7.8
2,835 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $596Free CancellationRating
7.4
9,746 reviews
Search United Airlines flights
ANAPriceFrom $614Free CancellationRating
8.3
1,211 reviews
Search ANA flights
Korean AirPriceFrom $626Free CancellationRating
8.4
1,217 reviews
Search Korean Air flights
Japan AirlinesPriceFrom $627Free CancellationRating
8.3
1,825 reviews
Search Japan Airlines flights
DeltaPriceFrom $644Free CancellationRating
7.9
8,449 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Japan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Japan for you.

Can I find flights from Washington to Japan with flexible booking policies on momondo?

Yes. All flights to Japan from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Japan?

momondo helps you find the best flight between Washington and Japan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington to Japan right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Japan from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Sat 6/20
Sat 6/27

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