$489 Find Cheap Flights from Osaka Kansai Intl to Washington - Compare and Save

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 9/14. 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, 0 bags

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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

Thu, Sep 17 - Sun, Sep 27
Multiple Airlines Logo
9:00 am - 1:40 pm
KIX
-
SEA
20h 40m
1 stop
Multiple Airlines Logo
1:35 pm - 9:15 pm
SEA
-
KIX
15h 40m
1 stop
$940Multiple Airlines
Tue, Oct 13 - Wed, Oct 21
Multiple Airlines Logo
11:45 am - 6:32 pm
KIX
-
SEA
22h 47m
2 stops
Multiple Airlines Logo
5:40 am - 9:15 pm
SEA
-
KIX
23h 35m
2 stops
$990Multiple Airlines
Wed, Sep 30 - Wed, Oct 7
Multiple Airlines Logo
11:45 am - 1:40 pm
KIX
-
SEA
17h 55m
1 stop
Multiple Airlines Logo
1:35 pm - 10:45 pm
SEA
-
KIX
17h 10m
1 stop
$1,010Multiple Airlines
Fri, Sep 11 - Thu, Sep 17
Multiple Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
Multiple Airlines Logo
11:45 am - 6:40 am
SEA
-
KIX
26h 55m
1 stop
$1,015Multiple Airlines
Fri, Sep 11 - Thu, Sep 17
Multiple Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
Multiple Airlines Logo
10:30 am - 5:00 pm
SEA
-
KIX
38h 30m
2 stops
$1,020Multiple Airlines
Fri, Dec 11 - Sat, Jan 16
Hainan Airlines Logo
2:35 pm - 8:20 am
KIX
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SEA
34h 45m
1 stop
Hainan Airlines Logo
10:20 am - 12:35 pm
SEA
-
KIX
33h 15m
1 stop
$1,044Hainan Airlines
Fri, Sep 11 - Thu, Sep 17
Multiple Airlines Logo
2:20 pm - 9:00 am
KIX
-
SEA
34h 40m
1 stop
Multiple Airlines Logo
5:50 am - 10:45 pm
SEA
-
KIX
24h 55m
3 stops
$1,055Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Multiple Airlines Logo
11:35 pm - 1:40 pm
KIX
-
SEA
54h 05m
2 stops
Multiple Airlines Logo
4:30 pm - 9:15 am
SEA
-
KIX
24h 45m
1 stop
$1,061Multiple Airlines
Mon, Aug 24 - Sun, Sep 20
Air Canada Logo
6:00 pm - 7:11 pm
KIX
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PDX
17h 11m
1 stop
Air Canada Logo
7:45 pm - 4:25 pm
PDX
-
KIX
28h 40m
1 stop
$1,143Air Canada
Mon, Aug 24 - Sun, Sep 20
Air Canada Logo
6:00 pm - 7:11 pm
KIX
-
PDX
17h 11m
1 stop
Air Canada Logo
10:10 am - 4:25 pm
PDX
-
KIX
14h 15m
1 stop
$1,151Air Canada
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.

Which airlines provide the cheapest flights from Osaka Kansai Intl Airport to Washington?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Osaka Kansai Intl Airport to Washington were found on Hainan Airlines ($1,044) and Air Canada ($1,143).

Good to know

Cheapest flight

$489
Flight from Osaka Kansai Intl to Seattle

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.

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.
7.1
Air CanadaOverall score based on 11425 reviews
7.1Comfort
7.8Crew
6.8Entertainment
6.3Food
7.3Boarding
Airline reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

2.0 MediocreAnonymous, Mar 2026
YVR - SEA
Read more Air Canada reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

Not to out myself as both a child at heart and kind of a terrible person, but the Pokémon safety video was the first time I watched an airplane safety video in like a decade. It was ADORABLE!! A great way to encourage attention from young and old alike.

I’m writing to share my deep frustration with a recent experience, which I feel reflects a troubling trend in the airline industry—one where customer care often takes a backseat to profit maximization. First, I do want to acknowledge a positive aspect: I appreciated that your team accommodated a seat change due to my medical needs without charging an additional fee. This gesture made a genuine difference during my trip, and I’m thankful for that. That said, the overall experience left me extremely disappointed. The ticket I purchased for myself and a companion turned out to be “basic”—a fare category I now understand to be non-refundable and non-transferable. Unfortunately, my travel companion was involved in a car accident and could not fly. Not only was I unable to receive any kind of reimbursement, but I also couldn't transfer the ticket to someone else, despite the flight being overbooked by three passengers. This inflexibility felt exploitative. To add to the frustration, I had to shoulder additional unexpected expenses: overpriced in-flight food and a costly baggage fee on my return trip. The entire process felt more like a profit-maximizing scheme than a customer service experience. I understand that airlines, like any business, need to remain financially viable. However, creating fare structures that penalize customers during emergencies, while simultaneously overbooking flights, comes across as deeply unfair. It’s hard to feel like a valued passenger in this environment. While I don’t expect much will come of this message, I do hope Air Canada takes this feedback seriously. There’s an opportunity to lead with integrity in an industry where choices for consumers are becoming more limited and experiences increasingly transactional.

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

Still haven’t made it home. Delayed twice, then cancelled. Will never fly Air Canada again. Horrible experience.

First time flying with Air Canada and very impressed! We will definitely book with them for future trips.

Very comfortable flight, despite being in the middle section, in the middle seat! Airline staff was very accommodating. Food was good and we just became aware of the meal options. When we flew from Toronto to Osaka, we were offered 2 meat dishes. We are pescatarian. The flight attendant went out of her way to bring us food we could eat. We look forward to flying with Air Canada in the future!

THE AIR CANADA CREW NEEDS TO MORE PROFESSIONAL AND COURTEOUS. UPON TIME OF BOARDING, THERE WAS A SPECIFIC AIR CANADA STAFF WHO WAS EXTEMELY RUDE. WE WAITED ON THE SIDE TO WAIT TO BOARD. SHE AGGRESSIVELY PUSHED ONE OF OUR FAMILY MEMBERS ON THE ARM TO SIT WHEN EVERYONE WAS STANDING BY TO BOARD. THEY WERE EXTREMELY UNORGANIZED. EVEN AFTER BOARDING, ONE OF THE STEWARDESS WAS TRYING TO CLOSE THE OVERHEAD LUGGAGE BINS AND I WAS SURPRISED WHEN SHE PUSHED THE PASSENGER'S LEG WITHOUT SAYING "EXCUSE ME". THE STAFF AT AIR CANADA TRULY NEEDS TO LEARN THEIR BOUNDARIES. REGARDING PHYSICAL CONTACT. SUCH BEHAVIOR IS INAPPROPRIATE. AIR CANADA HAS BEEN THE ABSOLUTE WORST EXPERIENCE!!!

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