$235 Find Cheap Flights from Washington to Japan

1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Japan

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info
Useful Info

Good to know

Low seasonAugust
High seasonOctober
Cheapest flight$235
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seattle to Tokyo Haneda

Flights from Washington to Japan: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Japan 
RenaFlew with Japan AirlinesSEA-NRTMar 2025
Good choice for non-stop Seattle to Tokyo.
J&SFlew with Japan AirlinesSEA-NRTMay 2024
JAL's service and food was more superior compared to the two airlines I had flown previously, i.e.UA and Delta.

FAQs for booking flights from Washington to Japan

  • How does KAYAK find such low prices on flights from Washington to Japan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Japan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Japan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Japan is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Japan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Japan with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Japan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Japan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Japan?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Japan is Tokyo Narita Airport (NRT), with an average flight price of $566.

  • What is the cheapest day to fly to Japan?

    Based on KAYAK data, the cheapest day to fly to Japan is Monday where round-trip tickets can be as cheap as $1,085. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,279 on average.

  • What is the cheapest time of day to fly to Japan?

    The cheapest time of day to fly to Japan is generally in the evening, when round-trip flights cost $1,104 on average. Morning departures are around 11% more expensive than evening flights, on average. The most expensive time of day to fly to Japan is generally at night, which is peak travel time and where the average cost of a ticket is $1,270.

  • What is the cheapest flight to Japan?

    The cheapest ticket to Japan from Washington found in the last 72 hours was to Tokyo Haneda Airport, at $699 round-trip. The most popular route is Seattle (SEA) to Tokyo Haneda Airport (HND) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $699.

  • What is the cheapest month to fly from Washington to Japan?

    The cheapest month for flights from Washington to Japan is September, when tickets cost $993 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,535 and $1,371 respectively.

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

    To get a below average price on the flight from Washington to Japan, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

  • How long is the flight to Japan?

    An average nonstop flight from Washington to Japan takes 25h 03m, covering a distance of 4994 miles. The shortest route is Seattle (SEA) to Tokyo Narita Airport (NRT) with an average flight time of 10h 00m.

  • What are the most popular destinations in Japan?

    Based on KAYAK flight searches, the most popular destination is Tokyo (88% of total searches to Japan). The next most popular destinations are Osaka (8%) and Okinawa (1%). Searches for flights to Sapporo Chitose Airport (1%), to Fukuoka (1%) and to Komatsu (0%) are also popular.

Book cheap flights from Washington to Japan

Recent round-trip flight deals

9/9Tue
2 stopsKorean Air
19h 50mPDX-KIX
9/16Tue
2 stopsKorean Air
20h 14mKIX-PDX
$651
9/9Tue
1 stopHawaiian Airlines
16h 05mPDX-KIX
9/16Tue
1 stopHawaiian Airlines
35h 30mKIX-PDX
$660
10/21Tue
1 stopAsiana Airlines
17h 15mSEA-HND
10/27Mon
1 stopAsiana Airlines
27h 05mHND-SEA
$680
7/29Tue
1 stopAsiana Airlines
35h 55mSEA-NRT
9/19Fri
1 stopAsiana Airlines
32h 45mNRT-SEA
$682
8/31Sun
1 stopANA
14h 10mPDX-HND
9/17Wed
1 stopANA
18h 39mHND-PDX
$684
8/21Thu
1 stopANA
17h 00mPDX-NRT
9/5Fri
1 stopANA
13h 32mNRT-PDX
$685
8/25Mon
1 stopUnited Airlines
14h 10mPDX-HND
9/11Thu
1 stopUnited Airlines
14h 52mHND-PDX
$696
9/11Thu
1 stopUnited Airlines
18h 50mPDX-HND
9/19Fri
1 stopUnited Airlines
15h 42mHND-PDX
$697
9/24Wed
1 stopDelta
15h 05mPDX-HND
10/22Wed
1 stopDelta
17h 03mHND-PDX
$698
9/26Fri
1 stopDelta
28h 50mPDX-HND
10/5Sun
1 stopDelta
20h 44mHND-PDX
$703

Search by stops

Search by airline

Search by price

Recent one-way flight deals

7/15Tue
nonstopANA
10h 30mSEA-HND
$235
5/14Wed
2 stops
29h 10mPDX-NRT
$363
7/9Wed
1 stopAsiana Airlines
35h 55mSEA-NRT
$401
7/23Wed
1 stopAsiana Airlines
17h 00mSEA-HND
$401
8/3Sun
2 stopsKorean Air
27h 45mPDX-NRT
$417
8/3Sun
1 stopAlaska Airlines
18h 45mPDX-NRT
$418
8/3Sun
1 stopDelta
25h 55mPDX-HND
$418
7/28Mon
2 stopsKorean Air
27h 45mPDX-NRT
$423
7/12Sat
1 stopDelta
29h 05mPDX-HND
$429
9/27Sat
1 stopAlaska Airlines
19h 55mPDX-HND
$433

Search by stops

Search by airline

Search by price

Last minute flights from Washington to Japan

Last minute flight, train and bus deals

5/1Thu
multi-stopDelta
16h 10mPDX-HND
5/20Tue
multi-stopDelta
20h 16mHND-PDX
$709
5/1Thu
multi-stopDelta
27h 10mPDX-HND
5/14Wed
multi-stopDelta
12h 36mHND-PDX
$714
5/3Sat
multi-stopKorean Air
19h 53mPDX-NRT
5/10Sat
multi-stopKorean Air
24h 41mNRT-PDX
$721
5/1Thu
multi-stopKorean Air
19h 53mPDX-NRT
5/8Thu
multi-stopKorean Air
21h 30mNRT-PDX
$728
5/1Thu
multi-stopUnited Airlines
14h 46mPDX-NRT
5/14Wed
multi-stopUnited Airlines
13h 29mNRT-PDX
$739
5/3Sat
multi-stopANA
15h 55mPDX-HND
5/10Sat
multi-stopANA
18h 27mHND-PDX
$740
5/5Mon
multi-stopANA
16h 40mPDX-NRT
5/20Tue
multi-stopANA
13h 29mNRT-PDX
$742
5/3Sat
multi-stopUnited Airlines
19h 25mPDX-HND
5/10Sat
multi-stopUnited Airlines
21h 03mHND-PDX
$749
5/3Sat
multi-stop
27h 49mPDX-NRT
6/7Sat
multi-stop
20h 18mNRT-PDX
$808
5/3Sat
multi-stop
40h 50mSEA-NRT
5/10Sat
multi-stop
22h 07mNRT-SEA
$926

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Japan

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.