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Cheap flights from Washington to Japan from $340

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 8/12. 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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Find the cheapest flights from Washington to Japan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 pm - 2:55 pm
SEA
-
NRT
26h 55m
1 stop
Air Canada Logo
4:30 pm - 10:40 pm
NRT
-
SEA
22h 10m
1 stop
$726Air Canada
Wed, Apr 22 - Fri, May 15
Multiple Airlines Logo
7:14 pm - 2:55 pm
PDX
-
NRT
27h 41m
2 stops
Multiple Airlines Logo
4:30 pm - 7:10 pm
NRT
-
PDX
18h 40m
1 stop
$726Multiple Airlines
Tue, Apr 28 - Thu, May 7
Multiple Airlines Logo
9:50 am - 9:15 pm
PDX
-
NRT
19h 25m
2 stops
Multiple Airlines Logo
4:30 pm - 2:45 pm
NRT
-
PDX
14h 15m
1 stop
$728Multiple Airlines
Wed, Apr 22 - Wed, May 13
Korean Air Logo
7:20 am - 10:50 pm
SEA
-
HND
23h 30m
2 stops
Korean Air Logo
2:00 am - 10:40 am
HND
-
SEA
24h 40m
1 stop
$758Korean Air
Wed, Sep 2 - Tue, Sep 15
Korean Air Logo
12:50 pm - 10:50 pm
SEA
-
HND
18h 00m
1 stop
Korean Air Logo
2:00 am - 10:40 am
HND
-
SEA
24h 40m
1 stop
$761Korean Air
Mon, Apr 20 - Tue, Sep 8
Japan Airlines Logo
7:00 am - 3:05 pm
PDX
-
HND
16h 05m
1 stop
Japan Airlines Logo
4:20 pm - 4:22 pm
HND
-
PDX
16h 02m
1 stop
$795Japan Airlines
Tue, Apr 28 - Wed, May 6
Japan Airlines Logo
10:45 am - 9:55 pm
PDX
-
KIX
19h 10m
2 stops
Japan Airlines Logo
6:40 am - 4:50 pm
KIX
-
PDX
26h 10m
2 stops
$807Japan Airlines
Mon, Sep 7 - Thu, Sep 17
ANA Logo
4:30 pm - 10:20 pm
SEA
-
KIX
13h 50m
1 stop
ANA Logo
3:50 pm - 2:25 pm
KIX
-
SEA
14h 35m
1 stop
$820ANA
Mon, Sep 14 - Tue, Sep 29
American Airlines Logo
6:00 am - 3:50 pm
PDX
-
HND
17h 50m
1 stop
American Airlines Logo
7:45 pm - 9:35 pm
HND
-
PDX
17h 50m
1 stop
$829American Airlines
Wed, Apr 22 - Wed, May 13
ANA Logo
7:12 am - 9:10 am
SEA
-
OKA
33h 58m
2 stops
ANA Logo
11:00 am - 2:36 pm
OKA
-
SEA
19h 36m
2 stops
$832ANA
Sun, Apr 26 - Tue, May 12

Air Canada flights from State of Washington to Japan

Our best Air Canada deals on State of Washington to Japan flight tickets
Air Canada
Apr 22
SEA8:00 pmSeattle/Tacoma Intl
26h 55m
1 stop
NRT2:55 pmTokyo Narita
May 15
NRT4:30 pmTokyo Narita
22h 10m
1 stop
SEA10:40 pmSeattle/Tacoma Intl
$726
Air Canada
Apr 29
SEA10:20 amSeattle/Tacoma Intl
14h 05m
1 stop
KIX4:25 pmOsaka Kansai Intl
May 12
KIX6:00 pmOsaka Kansai Intl
20h 40m
1 stop
SEA10:40 pmSeattle/Tacoma Intl
$729
Air Canada
Apr 29
SEA10:20 amSeattle/Tacoma Intl
12h 35m
1 stop
NRT2:55 pmTokyo Narita
May 5
NRT4:30 pmTokyo Narita
13h 50m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$736

ANA flights from State of Washington to Japan

Our best ANA deals on State of Washington to Japan flight tickets
ANA
Aug 31
SEA8:38 amSeattle/Tacoma Intl
14h 22m
1 stop
NRT3:00 pmTokyo Narita
Sep 9
NRT5:05 pmTokyo Narita
15h 10m
1 stop
SEA4:15 pmSeattle/Tacoma Intl
$759
ANA
Apr 29
SEA10:20 amSeattle/Tacoma Intl
12h 35m
1 stop
NRT2:55 pmTokyo Narita
May 11
NRT4:30 pmTokyo Narita
18h 00m
1 stop
SEA6:30 pmSeattle/Tacoma Intl
$763
ANA
Apr 30
PDX9:50 amPortland
13h 05m
1 stop
NRT2:55 pmTokyo Narita
May 7
NRT4:30 pmTokyo Narita
18h 40m
1 stop
PDX7:10 pmPortland
$805

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 April 7, 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

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Wed 4/22

8:00 pm-2:55 pm

1 stop26h 55m

Tokyo Narita

Fri 5/15

4:30 pm-10:40 pm

1 stop22h 10m

$726

PortlandTokyo

PDX - NRT

PDXNRT

Portland

Tue 4/28

7:14 pm-2:55 pm

2 stops27h 41m

Tokyo Narita

Thu 5/7

4:30 pm-7:10 pm

1 stop18h 40m

$726

PortlandTokyo

PDX - NRT

PDXNRT

Portland

Wed 4/22

9:50 am-9:15 pm

2 stops19h 25m

Tokyo Narita

Wed 5/13

4:30 pm-2:45 pm

1 stop14h 15m

$728

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Wed 9/2

7:20 am-10:50 pm

2 stops23h 30m

Tokyo Haneda

Tue 9/15

2:00 am-10:40 am

1 stop24h 40m

$758

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Mon 4/20

12:50 pm-10:50 pm

1 stop18h 00m

Tokyo Haneda

Tue 9/8

2:00 am-10:40 am

1 stop24h 40m

$761

PortlandTokyo

PDX - HND

PDXHND

Portland

Tue 4/28

7:00 am-3:05 pm

1 stop16h 05m

Tokyo Haneda

Wed 5/6

4:20 pm-4:22 pm

1 stop16h 02m

$795

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Mon 9/7

10:45 am-9:55 pm

2 stops19h 10m

Osaka Kansai Intl

Thu 9/17

6:40 am-4:50 pm

2 stops26h 10m

$807
Quickest round-trip

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 9/14

4:30 pm-10:20 pm

1 stop13h 50m

Osaka Kansai Intl

Tue 9/29

3:50 pm-2:25 pm

1 stop14h 35m

$820

PortlandTokyo

PDX - HND

PDXHND

Portland

Wed 4/22

6:00 am-3:50 pm

1 stop17h 50m

Tokyo Haneda

Wed 5/13

7:45 pm-9:35 pm

1 stop17h 50m

$829

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Sun 4/26

7:12 am-9:10 am

2 stops33h 58m

Okinawa Naha

Tue 5/12

11:00 am-2:36 pm

2 stops19h 36m

$832

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 $674. 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 $714.

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 $840. 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 $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 State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $837 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 $972 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 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 $912 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 $818 on momondo.

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

There are 4 cabin classes available to choose from on 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 24% 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

$404

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 $404. The best round-trip flight deal from State of Washington to Japan found on momondo in the last 72 hours is $881.
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).
Search flight deals

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
Alaska AirlinesPriceFrom $370Free CancellationRating
7.9
12,179 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $450Free CancellationRating
7.1
10,897 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $547Free CancellationRating
8.1
510 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $596Free CancellationRating
7.4
9,548 reviews
Search United Airlines flights
Korean AirPriceFrom $602Free CancellationRating
8.4
1,203 reviews
Search Korean Air flights
ANAPriceFrom $614Free CancellationRating
8.4
1,168 reviews
Search ANA flights
Japan AirlinesPriceFrom $626Free CancellationRating
8.3
1,768 reviews
Search Japan Airlines flights
DeltaPriceFrom $645Free CancellationRating
7.9
8,388 reviews
Search Delta flights
Alaska AirlinesPriceFrom $645Free CancellationRating
0.0
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $683Free CancellationRating
7.8
2,838 reviews
Search Hawaiian Airlines 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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