$441 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 6/24. 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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Best Washington Flight Deals from Kansai Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$795
Seattle
Seattle1 stop$795

Cheap Flights from Kansai Intl to Washington

 
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, Jul 8 - Sun, Jul 13
 Logo
6:15 pm - 12:45 pmKIX-SEA
34h 30m1 stop
 Logo
2:30 pm - 10:50 pmSEA-KIX
16h 20m1 stop
Tue, Sep 9 - Thu, Sep 25
Delta Logo
12:35 pm - 11:52 pmKIX-PDX
27h 17m2 stops
Delta Logo
7:10 am - 9:00 pmPDX-KIX
21h 50m2 stops
$802Delta
Find Deal
Mon, Sep 8 - Thu, Sep 25
Korean Air Logo
6:20 pm - 2:38 pmKIX-PDX
36h 18m2 stops
Korean Air Logo
9:10 am - 9:00 pmPDX-KIX
19h 50m2 stops
$808Korean Air
Find Deal
Tue, Jun 24 - Tue, Sep 16
Korean Air Logo
12:35 pm - 2:58 pmKIX-PDX
18h 23m2 stops
Korean Air Logo
5:10 pm - 11:20 amPDX-KIX
26h 10m2 stops
$810Korean Air
Find Deal
Tue, Oct 7 - Thu, Oct 30
China Airlines Logo
1:10 pm - 7:20 pmKIX-SEA
22h 10m1 stop
China Airlines Logo
1:10 am - 1:20 pmSEA-KIX
20h 10m1 stop
$846China Airlines
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Tue, Oct 7 - Wed, Oct 15
Air Canada Logo
6:05 pm - 6:46 pmKIX-PDX
16h 41m1 stop
Air Canada Logo
6:15 am - 4:25 pmPDX-KIX
18h 10m1 stop
$854Air Canada
Find Deal
Tue, Oct 7 - Fri, Oct 31
Air Canada Logo
6:05 pm - 6:36 pmKIX-SEA
16h 31m1 stop
Air Canada Logo
5:50 am - 5:35 pmSEA-KIX
19h 45m1 stop
$890Air Canada
Find Deal
Tue, Jul 8 - Sat, Jul 12
China Airlines Logo
1:10 pm - 7:45 pmKIX-SEA
22h 35m1 stop
China Airlines Logo
1:40 am - 12:50 pmSEA-KIX
19h 10m1 stop
$897China Airlines
Find Deal
Thu, Jul 10 - Mon, Jul 14
Asiana Airlines Logo
10:50 am - 12:45 pmKIX-SEA
17h 55m1 stop
Asiana Airlines Logo
2:30 pm - 9:05 pmSEA-KIX
14h 35m1 stop
$948Asiana Airlines
Find Deal
Thu, Jul 10 - Mon, Jul 14
Asiana Airlines Logo
10:50 am - 12:45 pmKIX-SEA
17h 55m1 stop
Asiana Airlines Logo
2:30 pm - 9:05 pmSEA-KIX
14h 35m1 stop
$963Asiana Airlines
Find Deal
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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
High seasonDecember
Cheapest flight$441
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 6% 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.

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 440 reviews
7.8Entertainment
8.5Crew
8.0Comfort
8.4Boarding
8.0Food
Airline reviews

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

10.0 ExcellentAnonymous, Jun 2025LAX - ICN
Read more Asiana Airlines reviews

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.

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. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The boarding process was good. The toilet could be better maintained.

This has been the worst experience I've ever had. We arrived to Ho Chi Minh Airport and were supposed to get our Asiana ticket from the transfer counter as we came with a different airline. However, the staff at the transfer counter were not helpful and kept giving us different information. We were first told by Asiana airlines staff we had to wait 2 hours so they could print out and give us our tickets, then someone else told us we had to wait 3hrs, someone told us "I don't know, just go sit and wait and we will tell you later." This was at a place in the Ho Chi Minh airport that had no coffee or food shops, nothing, just immigration (to enter Vietnam with a Vietnam Visa) and security (to transfer into the gates) but we needed our printed boarding pass to go through. It wasn't until we demanded to speak to a supervisor as our flight time was 1hr away because they kept telling us "there's alot of time left for your international flight, we will get your tickets later" we still had to wait around 20minutes for the "Supervisor" to give us our tickets. I would NOT recommend Asiana Airlines, especially if going thru Ho Chi Minh Airport as they are not helpful. (We almost missed our flight, due to their lazyness and incompetence of printing our tickets) I would suggest Asiana Airlines to have a Machine in the transfer area so passengers can easily print out their boarding passes themselves and save some money by not hiring incompetent staff that can't do a simple task such as printing a boarding pass.

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

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