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Kansai Intl

$304+ Cheap flights from Washington to Kansai Intl (KIX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KIX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Washington to Kansai Intl

Keep the following information in mind while searching for Washington to Kansai Intl flight deals. Data was last updated September 11, 2025.

Round-trip from

$571
(Air Canada)

One-way from

$304
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$950
From Washington to Osaka Kansai Intl
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One-way flight from Washington to Osaka Kansai Intl
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Highest demand for flights based on searches. 7% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Washington to Kansai Intl

Cheapest flights from Washington to Kansai Intl
Explore the most affordable flight options available from Washington to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Thu 12/1810:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/11$572
This lol.travel deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:15 pmSEA - KIX
1 stop29h 10mAir Canada
Tue 9/306:05 pmKIX - SEA
1 stop16h 31mAir Canada
Deal found 9/9$589
This CrystalTravel deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/1710:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/9$593
This FlightHub deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/812:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/179:00 amKIX - SEA
1 stop21h 55mAsiana Airlines
Deal found 9/11$599
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:40 pmPDX - KIX
1 stop28h 45mAir Canada
Tue 9/166:05 pmKIX - PDX
2 stops34h 38mAir Canada
Deal found 9/9$607
This CrystalTravel deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:00 amSEA - KIX
1 stop15h 50mANA
Wed 10/155:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 9/9$608
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Wed 11/268:25 pmKIX - SEA
1 stop34h 30mAsiana Airlines
Deal found 9/9$609
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:00 pmPDX - KIX
1 stop30h 40mAir Canada
Sat 11/87:25 pmKIX - PDX
1 stop16h 05mAir Canada
Deal found 9/9$613
This Gotogate deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/109:00 amKIX - SEA
1 stop21h 55mAsiana Airlines
Deal found 9/10$613
This KAYAK deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Tue 12/1610:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/11$619
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:40 amPDX - KIX
1 stop19h 05mAlaska Airlines
Tue 9/238:45 pmKIX - PDX
1 stop17h 55mAlaska Airlines
Deal found 9/9$621
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:00 amSEA - KIX
1 stop15h 50mANA
Tue 10/75:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 9/11$627

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Kansai Intl 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Washington to Osaka Kansai Intl Airport that are best for you.

Fly from

Washington

Fly to

Kansai Intl

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 11/11

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Tue 11/25

9:00 am-1:55 pm

1 stop21h 55m

$599

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 11/8

12:10 am-9:40 am

1 stop16h 30m

Osaka Kansai Intl

Tue 11/18

5:00 pm-1:55 pm

1 stop13h 55m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 11/30

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Thu 12/18

9:00 am-1:55 pm

1 stop21h 55m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 9/24

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Fri 10/3

4:50 pm-9:53 pm

2 stops21h 03m

$650

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 9/28

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Tue 10/7

4:50 pm-9:53 pm

2 stops21h 03m

$650

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 9/16

8:31 am-6:45 pm

1 stop18h 14m

Osaka Kansai Intl

Tue 9/23

5:55 pm-9:16 pm

1 stop19h 21m

$678

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 11/16

11:00 am-8:45 pm

1 stop16h 45m

Osaka Kansai Intl

Fri 11/21

9:00 am-9:00 am

1 stop17h 00m

$680

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 11/11

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Mon 11/24

6:35 pm-2:46 pm

1 stop13h 11m

$680

PascoOsaka

PSC - KIX

PSCKIX

Pasco Tri Cities

Sun 11/30

6:25 am-4:40 pm

1 stop17h 15m

Osaka Kansai Intl

Thu 12/4

6:35 pm-8:47 pm

1 stop19h 12m

$680

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 12/3

5:30 am-4:40 pm

1 stop18h 10m

Osaka Kansai Intl

Wed 12/17

8:20 am-3:29 pm

2 stops24h 09m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 51 results
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Best time to book a flight from Washington to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Osaka Kansai Intl Airport

What is the cheapest month to book a flight from State of Washington to Osaka Kansai Intl Airport?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Osaka Kansai Intl Airport (average of $866). Flying from State of Washington to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to KIX?

Find hourly flight availability from Washington to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from State of Washington to Osaka Kansai Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Washington to Kansai Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Osaka Kansai Intl Airport?

    A quick flight from State of Washington to Osaka Kansai Intl Airport can take about 15h 50m. Asiana Airlines provides one of the quickest options available for as low as $650. Airlines will cover a distance of 5024 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Osaka Kansai Intl Airport one-way?

    The cheapest airline one-way is Asiana Airlines, with whom users have recently found tickets for as low as $322. However, be on the lookout for offers from Air Canada and ANA, as they are both options that can get you from State of Washington to Osaka Kansai Intl Airport for a low price.

  • What are the most popular routes from State of Washington to Osaka Kansai Intl Airport?

    The most popular flight routes from State of Washington to Osaka Kansai Intl Airport are Seattle/Tacoma Intl - Osaka Kansai Intl, Portland - Osaka Kansai Intl and Pasco Tri Cities - Osaka Kansai Intl.

  • Can I find deals for flights from Washington to Kansai Intl that include hotel bookings?

    Yes. In addition to deals on Washington to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Kansai Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Kansai Intl.

  • Can I find deals for business class flights from Washington to Kansai Intl?

    Yes. Cheapflights offers flight deals from Washington to Kansai Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Osaka Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Osaka Kansai Intl Airport (average of $866). Flying from State of Washington to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka Kansai Intl Airport?

Book flights to Osaka Kansai Intl Airport if you plan to visit one of these locations
Izumisano
Nara
Nishinomiya
Himeji

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Top 10 airlines flying from Washington to Kansai Intl

Discover the top 10 airlines that operate flights from Washington to Kansai Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$648Average$856FlexibilityNo cancel feeOn-time76%
DeltaCheapest$649Average$972FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$669Average$848FlexibilityNo cancel feeOn-time67%
ANACheapest$681Average$928FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$716Average$1,133FlexibilityNo cancel feeOn-time81%
China EasternCheapest$719Average$756FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$794Average$1,017FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$918Average$1,111FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$963Average$1,159FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$1,017Average$1,186FlexibilityNo cancel feeOn-time70%

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