$415 Find Cheap Flights from Osaka Kansai Intl to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kansai Intl to Washington departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Osaka to Washington, as well as popular online travel agencies
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Cheap Flights from Kansai Intl to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$687
Seattle
Seattle1 stop$687

Book Cheap Kansai Intl to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kansai Intl to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kansai Intl to Washington

Tue, Sep 23 - Mon, Sep 29
 Logo
12:35 pm - 12:30 pmKIX-SEA
15h 55m1 stop
 Logo
2:15 pm - 5:50 pmSEA-KIX
35h 35m1 stop
Tue, Sep 23 - Thu, Sep 25
 Logo
12:35 pm - 12:30 pmKIX-SEA
15h 55m1 stop
 Logo
2:15 pm - 5:50 pmSEA-KIX
35h 35m1 stop
Thu, Sep 25 - Sat, Sep 27
Asiana Airlines Logo
10:50 am - 12:30 pmKIX-SEA
17h 40m1 stop
Asiana Airlines Logo
2:15 pm - 9:40 amSEA-KIX
27h 25m1 stop
$720Asiana Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
Asiana Airlines Logo
10:50 am - 12:30 pmKIX-SEA
17h 40m1 stop
Asiana Airlines Logo
2:15 pm - 5:50 pmSEA-KIX
35h 35m1 stop
$757Asiana Airlines
Find Deal
Tue, Sep 23 - Sun, Sep 28
China Airlines Logo
2:00 pm - 7:20 pmKIX-SEA
21h 20m1 stop
China Airlines Logo
1:10 am - 12:00 pmSEA-KIX
18h 50m1 stop
$814China Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
Korean Air Logo
12:35 pm - 5:10 pmKIX-PDX
20h 35m2 stops
Korean Air Logo
5:01 pm - 4:55 pmPDX-KIX
31h 54m2 stops
$825Korean Air
Find Deal
Thu, Sep 11 - Mon, Sep 15
Korean Air Logo
9:05 am - 2:52 pmKIX-PDX
21h 47m2 stops
Korean Air Logo
6:20 am - 9:00 pmPDX-KIX
22h 40m2 stops
$826Korean Air
Find Deal
Thu, Sep 25 - Thu, Sep 25
China Airlines Logo
7:05 pm - 7:20 pmKIX-SEA
16h 15m1 stop
China Airlines Logo
1:10 am - 6:05 pmSEA-KIX
24h 55m1 stop
$855China Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
Air Canada Logo
6:05 pm - 2:46 pmKIX-PDX
12h 41m1 stop
Air Canada Logo
10:00 am - 4:25 pmPDX-KIX
14h 25m1 stop
$863Air Canada
Find Deal
Sat, Sep 13 - Sat, Sep 20
Air Canada Logo
6:05 pm - 9:21 amKIX-PDX
31h 16m1 stop
Air Canada Logo
7:40 pm - 4:25 pmPDX-KIX
28h 45m1 stop
$915Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for Kansai Intl to Washington flights

Get data-powered insights and trends into flights from Kansai Intl to Washington to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Osaka Kansai Intl to Washington?

The average price of all round-trip flights from Osaka Kansai Intl Airport to Washington clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Osaka Kansai Intl to Washington. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.


Good to know

Low seasonFebruary
Cheapest flight$415
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Osaka to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Osaka Kansai Intl to Washington?

    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 Osaka Kansai Intl to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Osaka Kansai Intl to Washington 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 Osaka Kansai Intl to Washington?

    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 Osaka Kansai Intl to Washington 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 Osaka Kansai Intl to Washington?

    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 Osaka Kansai Intl to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Washington is generally in the morning, when round-trip flights cost $926 on average. Morning departures are around 43% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,633.

Reviews of the top airline flying from Kansai Intl to Washington

 
See real verified KAYAK customer reviews for airlines flying from Osaka to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kansai Intl to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Asiana AirlinesOverall score based on 467 reviews
8.0Food
7.7Entertainment
8.4Boarding
8.6Crew
8.1Comfort
Airline reviews

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

6.0 GoodAnonymous, Jul 2025ICN - JFK
Read more Asiana Airlines reviews

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

Everything you need to know for your flight from Kansai Intl to Washington

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